@@ -206,7 +206,7 @@ If a connection cannot get a lock on an object, the connection waits for some am
...
@@ -206,7 +206,7 @@ If a connection cannot get a lock on an object, the connection waits for some am
Multi-Version Concurrency Control (MVCC)
Multi-Version Concurrency Control (MVCC)
@advanced_1069_p
@advanced_1069_p
The MVCC feature allows higher concurrency than using (table level or row level) locks. When using MVCC in this database, delete, insert and update operations will only issue a shared lock on the table. An exclusive lock is still used when adding or removing columns, when dropping the table, and when using SELECT ... FOR UPDATE. Connections only 'see' committed data, and own changes. That means, if connection A updates a row but doesn't commit this change yet, connection B will see the old value. Only when the change is committed, the new value is visible by other connections (read committed). If multiple connections concurrently try to update the same row, this database fails fast: a concurrent update exception is thrown.
The MVCC feature allows higher concurrency than using (table level or row level) locks. When using MVCC in this database, delete, insert and update operations will only issue a shared lock on the table. An exclusive lock is still used when adding or removing columns, when dropping the table, and when using SELECT ... FOR UPDATE. Connections only 'see' committed data, and own changes. That means, if connection A updates a row but doesn't commit this change yet, connection B will see the old value. Only when the change is committed, the new value is visible by other connections (read committed). If multiple connections concurrently try to update the same row, the database waits until it can apply the change, but at most until the lock timeout expires.
@advanced_1070_p
@advanced_1070_p
To use the MVCC feature, append MVCC=TRUE to the database URL:
To use the MVCC feature, append MVCC=TRUE to the database URL:
...
@@ -1172,942 +1172,951 @@ Change Log
...
@@ -1172,942 +1172,951 @@ Change Log
Next Version (unreleased)
Next Version (unreleased)
@changelog_1002_li
@changelog_1002_li
The RunScript tool and SQL statement did not work with the compression method LZF.
Server-less multi-connection mode: more bugs are fixed.
@changelog_1003_li
@changelog_1003_li
Fulltext search: searching for NULL or an empty string threw an exception.
The download page now included the SHA1 checksums.
@changelog_1004_li
@changelog_1004_li
Lucene fulltext search: FTL_DROP_ALL did not drop the triggers.
Shell tool: the file encoding workaround is now documented if you run java org.h2.tools.Shell -?.
@changelog_1005_li
@changelog_1005_li
Backup: if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
The RunScript tool and SQL statement did not work with the compression method LZF.
@changelog_1006_li
@changelog_1006_li
Data types: LONG is now an alias for BIGINT.
Fulltext search: searching for NULL or an empty string threw an exception.
@changelog_1007_li
@changelog_1007_li
Lucene fulltext search: FTL_DROP_ALL did not drop the triggers.
@changelog_1008_li
Backup: if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
@changelog_1009_li
Data types: LONG is now an alias for BIGINT.
@changelog_1010_li
More bugs in the server-less multi-connection mode have been fixed.
More bugs in the server-less multi-connection mode have been fixed.
@changelog_1008_h2
@changelog_1011_h2
Version 1.1.114 (2009-06-01)
Version 1.1.114 (2009-06-01)
@changelog_1009_li
@changelog_1012_li
ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
@changelog_1010_li
@changelog_1013_li
Fulltext search: Data is no longer deleted and re-inserted if the indexed columns didn't change.
Fulltext search: Data is no longer deleted and re-inserted if the indexed columns didn't change.
@changelog_1011_li
@changelog_1014_li
In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
@changelog_1012_li
@changelog_1015_li
Microsoft Windows Vista: when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
Microsoft Windows Vista: when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
@changelog_1013_li
@changelog_1016_li
The Recover tool did not always work when the database contains referential integrity constraints.
The Recover tool did not always work when the database contains referential integrity constraints.
@changelog_1014_li
@changelog_1017_li
Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
@changelog_1015_h2
@changelog_1018_h2
Version 1.1.113 (2009-05-21)
Version 1.1.113 (2009-05-21)
@changelog_1016_li
@changelog_1019_li
Shell tool: the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
Shell tool: the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
@changelog_1017_li
@changelog_1020_li
JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
@changelog_1018_li
@changelog_1021_li
When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
@changelog_1019_li
@changelog_1022_li
Identifiers with a digit and then a dollar sign didn't work. Example: A1$B.
Identifiers with a digit and then a dollar sign didn't work. Example: A1$B.
@changelog_1020_li
@changelog_1023_li
MS SQL Server compatibility: support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
MS SQL Server compatibility: support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
@changelog_1021_li
@changelog_1024_li
Android: Workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
Android: Workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
@changelog_1022_li
@changelog_1025_li
Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
@changelog_1023_li
@changelog_1026_li
Benchmark: the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
Benchmark: the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
@changelog_1024_li
@changelog_1027_li
H2 Console: command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
H2 Console: command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
@changelog_1025_li
@changelog_1028_li
Cache: support for a second level soft-references cache. To enable it, append ;CACHE_TYPE=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek!
Cache: support for a second level soft-references cache. To enable it, append ;CACHE_TYPE=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek!
@changelog_1026_h2
@changelog_1029_h2
Version 1.1.112 (2009-05-01)
Version 1.1.112 (2009-05-01)
@changelog_1027_li
@changelog_1030_li
JdbcPreparedStatement.toString() could throw a NullPointerException.
JdbcPreparedStatement.toString() could throw a NullPointerException.
@changelog_1028_li
@changelog_1031_li
EclipseLink: Added H2Platform.supportsIdentity().
EclipseLink: Added H2Platform.supportsIdentity().
@changelog_1029_li
@changelog_1032_li
Connection pool: the default login timeout is now 5 minutes.
Connection pool: the default login timeout is now 5 minutes.
@changelog_1030_li
@changelog_1033_li
After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
@changelog_1031_li
@changelog_1034_li
More bugs in the server-less multi-connection mode have been fixed: Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
More bugs in the server-less multi-connection mode have been fixed: Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
@changelog_1032_li
@changelog_1035_li
GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
@changelog_1033_li
@changelog_1036_li
Improved error message when the .lock.db file modification time is in the future.
Improved error message when the .lock.db file modification time is in the future.
@changelog_1034_li
@changelog_1037_li
The MERGE statement now returns 0 as the generated key if the row was updated.
The MERGE statement now returns 0 as the generated key if the row was updated.
@changelog_1035_li
@changelog_1038_li
Running code coverage is now automated.
Running code coverage is now automated.
@changelog_1036_li
@changelog_1039_li
A file system implementation can now be registered using FileSystem.register.
A file system implementation can now be registered using FileSystem.register.
@changelog_1037_li
@changelog_1040_li
The database file system is no longer included in the jar file, it moved to the test section.
The database file system is no longer included in the jar file, it moved to the test section.
@changelog_1038_h2
@changelog_1041_h2
Version 1.1.111 (2009-04-10)
Version 1.1.111 (2009-04-10)
@changelog_1039_li
@changelog_1042_li
In-memory databases can now run inside the Google App Engine.
In-memory databases can now run inside the Google App Engine.
@changelog_1040_li
@changelog_1043_li
Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
@changelog_1041_li
@changelog_1044_li
The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
@changelog_1042_li
@changelog_1045_li
The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
@changelog_1043_li
@changelog_1046_li
Sometimes a StackOverflow occurred when checking for deadlock. See also http://code.google.com/p/h2database/issues/detail?id=61
Sometimes a StackOverflow occurred when checking for deadlock. See also http://code.google.com/p/h2database/issues/detail?id=61
@changelog_1044_li
@changelog_1047_li
The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
@changelog_1045_h2
@changelog_1048_h2
Version 1.1.110 (2009-04-03)
Version 1.1.110 (2009-04-03)
@changelog_1046_li
@changelog_1049_li
Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch!
Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch!
@changelog_1047_li
@changelog_1050_li
The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
@changelog_1048_li
@changelog_1051_li
The data type of a SUBSTRING method was wrong.
The data type of a SUBSTRING method was wrong.
@changelog_1049_li
@changelog_1052_li
ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
@changelog_1050_li
@changelog_1053_li
H2 Console: the browser system property now supports a list of arguments. Example: java -Dh2.browser="open,-a,Safari,%url" ...
H2 Console: the browser system property now supports a list of arguments. Example: java -Dh2.browser="open,-a,Safari,%url" ...
@changelog_1051_li
@changelog_1054_li
Improved Javadoc navigation (similar to Scaladoc).
Improved Javadoc navigation (similar to Scaladoc).
@changelog_1052_li
@changelog_1055_li
H2 Console: auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
H2 Console: auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
@changelog_1053_li
@changelog_1056_li
DISTINCT and GROUP BY on a CLOB column was broken.
DISTINCT and GROUP BY on a CLOB column was broken.
@changelog_1054_li
@changelog_1057_li
The FTP server moved to the tools section and is no longer included in the h2*.jar file.
The FTP server moved to the tools section and is no longer included in the h2*.jar file.
@changelog_1055_li
@changelog_1058_li
Improved error message for unsupported features: now the message says what exactly is not supported.
Improved error message for unsupported features: now the message says what exactly is not supported.
@changelog_1056_li
@changelog_1059_li
Improved OSGi support.
Improved OSGi support.
@changelog_1057_li
@changelog_1060_li
Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
@changelog_1058_li
@changelog_1061_li
The API of the tools changed a bit (each tool now returns an exit code).
The API of the tools changed a bit (each tool now returns an exit code).
@changelog_1059_li
@changelog_1062_li
Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
@changelog_1060_li
@changelog_1063_li
CREATE TABLE: improved compatibility (support for UNIQUE NOT NULL).
CREATE TABLE: improved compatibility (support for UNIQUE NOT NULL).
@changelog_1061_li
@changelog_1064_li
DatabaseMetaData.getSQLKeywords now returns the correct list.
DatabaseMetaData.getSQLKeywords now returns the correct list.
@changelog_1062_li
@changelog_1065_li
Deterministic user defined functions did not work when the parameter was a column. Fixed.
Deterministic user defined functions did not work when the parameter was a column. Fixed.
@changelog_1063_li
@changelog_1066_li
JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
@changelog_1064_li
@changelog_1067_li
Creating a JdbcConnectionPool has been simplified a bit.
Creating a JdbcConnectionPool has been simplified a bit.
@changelog_1065_li
@changelog_1068_li
The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
@changelog_1066_li
@changelog_1069_li
More bugs in the server-less multi-connection mode have been fixed: If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
More bugs in the server-less multi-connection mode have been fixed: If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
@changelog_1067_li
@changelog_1070_li
Linked tables to SQLite database can now be created.
Linked tables to SQLite database can now be created.
@changelog_1068_li
@changelog_1071_li
Nested IN(IN(...)) didn't work.
Nested IN(IN(...)) didn't work.
@changelog_1069_li
@changelog_1072_li
NIO storage: the nio: prefix was using memory mapped files instead of FileChannel.
NIO storage: the nio: prefix was using memory mapped files instead of FileChannel.
@changelog_1070_h2
@changelog_1073_h2
Version 1.1.109 (2009-03-14)
Version 1.1.109 (2009-03-14)
@changelog_1071_li
@changelog_1074_li
The optimization for IN(...) is now only used if comparing a column with an index.
The optimization for IN(...) is now only used if comparing a column with an index.
@changelog_1072_li
@changelog_1075_li
User defined functions can now be deterministic (see CREATE ALIAS documentation).
User defined functions can now be deterministic (see CREATE ALIAS documentation).
@changelog_1073_li
@changelog_1076_li
Multiple nested queries in the FROM clause with parameters did not always work.
Multiple nested queries in the FROM clause with parameters did not always work.
@changelog_1074_li
@changelog_1077_li
When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
@changelog_1075_li
@changelog_1078_li
New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio: or nioMapped: as in jdbc:h2:nio:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch!
New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio: or nioMapped: as in jdbc:h2:nio:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch!
@changelog_1076_li
@changelog_1079_li
The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
@changelog_1077_li
@changelog_1080_li
Could not use the same linked table multiple times in the same query.
Could not use the same linked table multiple times in the same query.
@changelog_1078_li
@changelog_1081_li
Bugs in the server-less multi-connection mode have been fixed.
Bugs in the server-less multi-connection mode have been fixed.
@changelog_1079_li
@changelog_1082_li
Column names could not be named "UNIQUE" (with the quotes).
Column names could not be named "UNIQUE" (with the quotes).
@changelog_1080_li
@changelog_1083_li
New system function TRANSACTION_ID() to get the current transaction identifier for a session.
New system function TRANSACTION_ID() to get the current transaction identifier for a session.
@changelog_1081_h2
@changelog_1084_h2
Version 1.1.108 (2009-02-28)
Version 1.1.108 (2009-02-28)
@changelog_1082_li
@changelog_1085_li
When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
@changelog_1083_li
@changelog_1086_li
JdbcConnectionPool: it was possible to set a negative connection pool size.
JdbcConnectionPool: it was possible to set a negative connection pool size.
@changelog_1084_li
@changelog_1087_li
Fulltext search did not support table names with a backslash.
Fulltext search did not support table names with a backslash.
@changelog_1085_li
@changelog_1088_li
The internal IntArray class did not work correctly when initialized with a zero length array.
The internal IntArray class did not work correctly when initialized with a zero length array.
@changelog_1086_li
@changelog_1089_li
The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
@changelog_1087_li
@changelog_1090_li
DATEADD does no longer require that the argument is a timestamp.
DATEADD does no longer require that the argument is a timestamp.
@changelog_1088_li
@changelog_1091_li
The database file locking mechanism didn't work correctly on Mac OS.
The database file locking mechanism didn't work correctly on Mac OS.
@changelog_1089_li
@changelog_1092_li
Some built-in functions reported the wrong precision, scale, and display size.
Some built-in functions reported the wrong precision, scale, and display size.
@changelog_1090_li
@changelog_1093_li
MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
@changelog_1091_li
@changelog_1094_li
Recovery did not work if there were more than 255 lobs stored as files.
Recovery did not work if there were more than 255 lobs stored as files.
@changelog_1092_li
@changelog_1095_li
New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK=SERIALIZED;OPEN_NEW=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK=SERIALIZED;OPEN_NEW=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
@changelog_1093_li
@changelog_1096_li
In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
@changelog_1094_li
@changelog_1097_li
The WebServlet did not close the database when un-deploying the web application.
The WebServlet did not close the database when un-deploying the web application.
@changelog_1095_li
@changelog_1098_li
The exception message of failed INSERT or MERGE statements now includes all values and the row number.
The exception message of failed INSERT or MERGE statements now includes all values and the row number.
@changelog_1096_li
@changelog_1099_li
If opening a database failed with an out of memory exception, some files were not closed.
If opening a database failed with an out of memory exception, some files were not closed.
@changelog_1097_li
@changelog_1100_li
Optimizer: the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
Optimizer: the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
@changelog_1098_li
@changelog_1101_li
Improved exception message when connecting to a just started server fails.
Improved exception message when connecting to a just started server fails.
@changelog_1099_li
@changelog_1102_li
Connection.isValid is a bit faster.
Connection.isValid is a bit faster.
@changelog_1100_li
@changelog_1103_li
H2 Console: The autocomplete feature has been improved a bit. It can now better parse conditions.
H2 Console: The autocomplete feature has been improved a bit. It can now better parse conditions.
@changelog_1101_li
@changelog_1104_li
When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ: Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ: Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
@changelog_1102_h2
@changelog_1105_h2
Version 1.1.107 (2009-01-24)
Version 1.1.107 (2009-01-24)
@changelog_1103_li
@changelog_1106_li
Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
@changelog_1104_li
@changelog_1107_li
The MySQL compatibility extension fromUnixTime now used the English locale.
The MySQL compatibility extension fromUnixTime now used the English locale.
@changelog_1105_li
@changelog_1108_li
When using LOG=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
When using LOG=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
@changelog_1106_li
@changelog_1109_li
In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE=TEXT) but support for this format was removed in version 1.1.105.
In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE=TEXT) but support for this format was removed in version 1.1.105.
@changelog_1107_li
@changelog_1110_li
Enabling the trace mechanism by creating a specially named file is no longer supported.
Enabling the trace mechanism by creating a specially named file is no longer supported.
@changelog_1108_h2
@changelog_1111_h2
Version 1.1.106 (2009-01-04)
Version 1.1.106 (2009-01-04)
@changelog_1109_li
@changelog_1112_li
Statement.setQueryTimeout did not work correctly for some statements.
Statement.setQueryTimeout did not work correctly for some statements.
@changelog_1110_li
@changelog_1113_li
CREATE DOMAIN: Built-in data types can now only be changed if no tables exist.
CREATE DOMAIN: Built-in data types can now only be changed if no tables exist.
@changelog_1111_li
@changelog_1114_li
Linked tables: a workaround for Oracle DATE columns has been implemented.
Linked tables: a workaround for Oracle DATE columns has been implemented.
@changelog_1112_li
@changelog_1115_li
DatabaseMetaData.getPrimaryKeys: The column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
DatabaseMetaData.getPrimaryKeys: The column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
@changelog_1113_li
@changelog_1116_li
Using IN(..) inside a IN(SELECT..) did not always work.
Using IN(..) inside a IN(SELECT..) did not always work.
@changelog_1114_li
@changelog_1117_li
Views with IN(..) that used a view itself did not work.
Views with IN(..) that used a view itself did not work.
@changelog_1115_li
@changelog_1118_li
Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
@changelog_1116_li
@changelog_1119_li
The license change a bit: so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
The license change a bit: so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
@changelog_1117_li
@changelog_1120_li
Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem!
Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem!
@changelog_1118_li
@changelog_1121_li
When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database: Lock file modified in the future').
When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database: Lock file modified in the future').
@changelog_1119_h2
@changelog_1122_h2
Version 1.1.105 (2008-12-19)
Version 1.1.105 (2008-12-19)
@changelog_1120_li
@changelog_1123_li
The setting STORAGE=TEXT is no longer supported.
The setting STORAGE=TEXT is no longer supported.
@changelog_1121_li
@changelog_1124_li
Deleting a database using the tool DeleteDbFiles deleted LOB files of other databases in the same directory.
Deleting a database using the tool DeleteDbFiles deleted LOB files of other databases in the same directory.
@changelog_1122_li
@changelog_1125_li
When used in a subquery, LIKE and IN(..) did not work correctly sometimes.
When used in a subquery, LIKE and IN(..) did not work correctly sometimes.
@changelog_1123_li
@changelog_1126_li
The fulltext search documentation has been improved.
The fulltext search documentation has been improved.
@changelog_1124_li
@changelog_1127_li
ARRAY_GET returned the wrong data type (ARRAY). Now it returns VARCHAR.
ARRAY_GET returned the wrong data type (ARRAY). Now it returns VARCHAR.
@changelog_1125_li
@changelog_1128_li
Natural join: the joined columns are not repeated any more when using SELECT *.
Natural join: the joined columns are not repeated any more when using SELECT *.
@changelog_1126_li
@changelog_1129_li
User defined aggregate functions: the method getType expected internal data types instead of SQL types.
User defined aggregate functions: the method getType expected internal data types instead of SQL types.
@changelog_1127_li
@changelog_1130_li
User defined aggregate functions did not work if there was no group by expression.
User defined aggregate functions did not work if there was no group by expression.
@changelog_1128_li
@changelog_1131_li
MySQL compatibility: support for := assignment as in @sum:=@sum+x
MySQL compatibility: support for := assignment as in @sum:=@sum+x
@changelog_1129_li
@changelog_1132_li
INSERT INTO TEST(SELECT * FROM TEST) is now supported.
INSERT INTO TEST(SELECT * FROM TEST) is now supported.
@changelog_1130_li
@changelog_1133_li
Each session threw an invisible exception when garbage collected.
Each session threw an invisible exception when garbage collected.
@changelog_1131_li
@changelog_1134_li
Foreign key constraints that refer to a quoted column did not work.
Foreign key constraints that refer to a quoted column did not work.
@changelog_1132_li
@changelog_1135_li
New meta data column INFORMATION_SCHEMA.TABLES.LAST_MODIFICATION to get the table modification counter.
New meta data column INFORMATION_SCHEMA.TABLES.LAST_MODIFICATION to get the table modification counter.
@changelog_1133_li
@changelog_1136_li
Shell: line comments didn't work correctly.
Shell: line comments didn't work correctly.
@changelog_1134_li
@changelog_1137_li
H2 Console: Columns are now listed for up to 500 tables instead of 100.
H2 Console: Columns are now listed for up to 500 tables instead of 100.
@changelog_1135_li
@changelog_1138_li
H2 Console: Cmd+Enter executes the current statement, Alt+Space for autocomplete.
H2 Console: Cmd+Enter executes the current statement, Alt+Space for autocomplete.
@changelog_1136_li
@changelog_1139_li
JaQu: the maximum length of a column can now be defined using maxLength. For an example, see Product.java (maxLength(category, 255)).
JaQu: the maximum length of a column can now be defined using maxLength. For an example, see Product.java (maxLength(category, 255)).
@changelog_1137_li
@changelog_1140_li
R&\#305;dvan A&\#287;ar has completed the Turkish translation of the H2 Console. Thanks a lot!
R&\#305;dvan A&\#287;ar has completed the Turkish translation of the H2 Console. Thanks a lot!
@changelog_1138_h2
@changelog_1141_h2
Version 1.1.104 (2008-11-28)
Version 1.1.104 (2008-11-28)
@changelog_1139_li
@changelog_1142_li
If a query that was used like a table contained group by and was ordered by an expression that is not in the column list, an exception was thrown.
If a query that was used like a table contained group by and was ordered by an expression that is not in the column list, an exception was thrown.
@changelog_1140_li
@changelog_1143_li
JaQu: tables are now auto-created when running a query.
JaQu: tables are now auto-created when running a query.
@changelog_1141_li
@changelog_1144_li
The optimizer had problems with function tables (for example CSVREAD and FTL_SEARCH). A new system property h2.estimatedFunctionTableRows (default 1000) defines how many rows can be expected in the table.
The optimizer had problems with function tables (for example CSVREAD and FTL_SEARCH). A new system property h2.estimatedFunctionTableRows (default 1000) defines how many rows can be expected in the table.
@changelog_1142_li
@changelog_1145_li
The function SUM could overflow when using large values. It returns now a data type that is safe.
The function SUM could overflow when using large values. It returns now a data type that is safe.
@changelog_1143_li
@changelog_1146_li
The function AVG could overflow when using large values. Fixed.
The function AVG could overflow when using large values. Fixed.
@changelog_1144_li
@changelog_1147_li
The emergency reserve file has been removed. It didn't provide an appropriate solution for the problem. It is still possible for an application to detect and deal with the low disk space problem (deleting temporary files for example) using DatabaseEventListener.diskSpaceIsLow, but this method is now always called with stillAvailable=0.
The emergency reserve file has been removed. It didn't provide an appropriate solution for the problem. It is still possible for an application to detect and deal with the low disk space problem (deleting temporary files for example) using DatabaseEventListener.diskSpaceIsLow, but this method is now always called with stillAvailable=0.
@changelog_1145_li
@changelog_1148_li
Build: JAVA_HOME is now automatically detected on Mac OS X.
Build: JAVA_HOME is now automatically detected on Mac OS X.
@changelog_1146_li
@changelog_1149_li
Testing for local connections was very slow on some systems.
Testing for local connections was very slow on some systems.
@changelog_1147_li
@changelog_1150_li
The cache memory usage calculation is more conservative.
The cache memory usage calculation is more conservative.
@changelog_1148_li
@changelog_1151_li
Allocating space got slower and slower the larger the database.
Allocating space got slower and slower the larger the database.
@changelog_1149_li
@changelog_1152_li
ALTER TABLE ALTER COLUMN could throw the wrong exception in the last version (Table not found).
ALTER TABLE ALTER COLUMN could throw the wrong exception in the last version (Table not found).
@changelog_1150_li
@changelog_1153_li
Updatable result sets: the key columns can now be updated.
Updatable result sets: the key columns can now be updated.
@changelog_1151_li
@changelog_1154_li
The H2DatabaseProvider for ActiveObjects is now included in the tools section.
The H2DatabaseProvider for ActiveObjects is now included in the tools section.
@changelog_1152_li
@changelog_1155_li
The H2Platform for Oracle Toplink Essential has been improved a bit.
The H2Platform for Oracle Toplink Essential has been improved a bit.
@changelog_1153_li
@changelog_1156_li
The Windows service to start H2 didn't work in version 1.1.
The Windows service to start H2 didn't work in version 1.1.
@changelog_1154_li
@changelog_1157_li
File systems with a maximum file size (for example FAT) are now supported using the file prefix 'split:'. In this case the files are split in parts of 1 GB. Example URL: jdbc:h2:split:~/db/test. If you want to split into parts of 1 MB, use jdbc:h2:split:20:~/db/test (the part size is 1 << x, the default is 30 meaning 1 GB).
File systems with a maximum file size (for example FAT) are now supported using the file prefix 'split:'. In this case the files are split in parts of 1 GB. Example URL: jdbc:h2:split:~/db/test. If you want to split into parts of 1 MB, use jdbc:h2:split:20:~/db/test (the part size is 1 << x, the default is 30 meaning 1 GB).
@changelog_1155_li
@changelog_1158_li
The database now tries to detect if the classloader or virtual machine has almost shut down by checking if static final variables are set to null. This should help reduce exceptions when stopping the web application.
The database now tries to detect if the classloader or virtual machine has almost shut down by checking if static final variables are set to null. This should help reduce exceptions when stopping the web application.
@changelog_1156_li
@changelog_1159_li
Compatibility for MS SQL Server DATEDIFF(YYYY, .., ..)
Compatibility for MS SQL Server DATEDIFF(YYYY, .., ..)
@changelog_1157_li
@changelog_1160_li
ResultSet.getObject for CLOB or BLOB will return a java.sql.Clob / java.sql.Blob object instead of a java.io.Reader / java.io.InputStream as in version 1.0. This behavior can be changed using the system property h2.returnLobObjects (true by default for version 1.1).
ResultSet.getObject for CLOB or BLOB will return a java.sql.Clob / java.sql.Blob object instead of a java.io.Reader / java.io.InputStream as in version 1.0. This behavior can be changed using the system property h2.returnLobObjects (true by default for version 1.1).
@changelog_1158_li
@changelog_1161_li
The interface CloseListener has a new method 'remove' that is called when the trigger is dropped.
The interface CloseListener has a new method 'remove' that is called when the trigger is dropped.
@changelog_1159_li
@changelog_1162_li
Fulltext search: there was a memory leak when creating and dropping fulltext indexes in a loop.
Fulltext search: there was a memory leak when creating and dropping fulltext indexes in a loop.
@changelog_1160_h2
@changelog_1163_h2
Version 1.1.103 (2008-11-07)
Version 1.1.103 (2008-11-07)
@changelog_1161_li
@changelog_1164_li
Could not order by a formula when the formula was in the group by list but not in the select list.
Could not order by a formula when the formula was in the group by list but not in the select list.
@changelog_1162_li
@changelog_1165_li
Date values that match the daylight saving time end were not allowed in times zones were the daylight saving time ends at midnight, for years larger than 2037. Example: timezone Brasilia, date 2042-10-12. This is a problem of Java, however a workaround is implemented in H2 that solves most problems (except the problems of java.util.Date itself).
Date values that match the daylight saving time end were not allowed in times zones were the daylight saving time ends at midnight, for years larger than 2037. Example: timezone Brasilia, date 2042-10-12. This is a problem of Java, however a workaround is implemented in H2 that solves most problems (except the problems of java.util.Date itself).
@changelog_1163_li
@changelog_1166_li
ALTER TABLE used a lot of memory when using multi-version concurrency.
ALTER TABLE used a lot of memory when using multi-version concurrency.
@changelog_1164_li
@changelog_1167_li
Referential integrity for in-memory databases didn't work in some cases in version 1.1.102.
Referential integrity for in-memory databases didn't work in some cases in version 1.1.102.
@changelog_1165_li
@changelog_1168_li
New column INFORMATION_SCHEMA.COLUMNS.SEQUENCE_NAME to get the name of the sequence for auto-increment columns.
New column INFORMATION_SCHEMA.COLUMNS.SEQUENCE_NAME to get the name of the sequence for auto-increment columns.
@changelog_1166_li
@changelog_1169_li
Aliases for built-in data types (such as MEDIUMBLOB which is an alias for BLOB) can now be re-mapped to another data type using CREATE DOMAIN. However main built-in data types (such as INTEGER) can not be re-mapped.
Aliases for built-in data types (such as MEDIUMBLOB which is an alias for BLOB) can now be re-mapped to another data type using CREATE DOMAIN. However main built-in data types (such as INTEGER) can not be re-mapped.
@changelog_1167_li
@changelog_1170_li
The Japanese translation has been completed by Masahiro Ikemoto. Thanks a lot!
The Japanese translation has been completed by Masahiro Ikemoto. Thanks a lot!
@changelog_1168_li
@changelog_1171_li
Improved PostgreSQL compatibility for NEXTVAL and CURRVAL.
Improved PostgreSQL compatibility for NEXTVAL and CURRVAL.
@changelog_1169_li
@changelog_1172_li
Less heap memory is needed when multiple databases are open at the same time: The memory reserve (used to rollback after out of memory) is now global and no longer allocated for each database separately.
Less heap memory is needed when multiple databases are open at the same time: The memory reserve (used to rollback after out of memory) is now global and no longer allocated for each database separately.
@changelog_1170_li
@changelog_1173_li
New system property h2.browser to set the browser to use.
New system property h2.browser to set the browser to use.
@changelog_1171_li
@changelog_1174_li
To start the browser, java.awt.Desktop.browse is now used if available.
To start the browser, java.awt.Desktop.browse is now used if available.
@changelog_1172_h2
@changelog_1175_h2
Version 1.1.102 (2008-10-24)
Version 1.1.102 (2008-10-24)
@changelog_1173_li
@changelog_1176_li
The French translation of the H2 Console has been improved by Olivier Parent. Thanks a lot!
The French translation of the H2 Console has been improved by Olivier Parent. Thanks a lot!
@changelog_1174_li
@changelog_1177_li
There was a memory leak when creating and dropping tables and indexes in a loop (persistent database only).
There was a memory leak when creating and dropping tables and indexes in a loop (persistent database only).
@changelog_1175_li
@changelog_1178_li
SET LOG 2 was not effective if executed after opening the database.
SET LOG 2 was not effective if executed after opening the database.
@changelog_1176_li
@changelog_1179_li
Translating the H2 Console is now simpler.
Translating the H2 Console is now simpler.
@changelog_1177_li
@changelog_1180_li
Common exception (error code 23*) are no longer written to the .trace.db file by default.
Common exception (error code 23*) are no longer written to the .trace.db file by default.
@changelog_1178_li
@changelog_1181_li
In-memory databases don't write LOBs to files any longer.
In-memory databases don't write LOBs to files any longer.
@changelog_1179_li
@changelog_1182_li
Self referencing constraints didn't restrict deleting rows that reference itself if there is another row that references it.
Self referencing constraints didn't restrict deleting rows that reference itself if there is another row that references it.
@changelog_1180_li
@changelog_1183_li
ResultSetMetaData.getColumnName now returns the alias name except for columns.
ResultSetMetaData.getColumnName now returns the alias name except for columns.
@changelog_1181_li
@changelog_1184_li
Temporary files are now deleted when the database is closed, even if they were not garbage collected so far.
Temporary files are now deleted when the database is closed, even if they were not garbage collected so far.
@changelog_1182_h2
@changelog_1185_h2
Version 1.1.101 (2008-10-17)
Version 1.1.101 (2008-10-17)
@changelog_1183_li
@changelog_1186_li
Errors with code 42000 - 42999 are no longer written to the trace file by default.
Errors with code 42000 - 42999 are no longer written to the trace file by default.
@changelog_1184_li
@changelog_1187_li
Queries with more than 10 tables are now faster.
Queries with more than 10 tables are now faster.
@changelog_1185_li
@changelog_1188_li
Opening a connection with AUTO_SERVER=TRUE is now fast when the database is already open in another process (less than 0.01 seconds instead of 2 seconds).
Opening a connection with AUTO_SERVER=TRUE is now fast when the database is already open in another process (less than 0.01 seconds instead of 2 seconds).
@changelog_1186_li
@changelog_1189_li
IF [NOT] EXISTS is supported for named constraints in ALTER TABLE ... ADD/DROP CONSTRAINT.
IF [NOT] EXISTS is supported for named constraints in ALTER TABLE ... ADD/DROP CONSTRAINT.
@changelog_1187_li
@changelog_1190_li
The error messages have been translated to Spanish by Dario V. Fassi. Thanks a lot!
The error messages have been translated to Spanish by Dario V. Fassi. Thanks a lot!
@changelog_1188_li
@changelog_1191_li
Linked tables: the automatic connection sharing didn't work. Actually the system property h2.shareLinkedConnections was working in the opposite direction: it was disabled when set to true. Now it works as expected.
Linked tables: the automatic connection sharing didn't work. Actually the system property h2.shareLinkedConnections was working in the opposite direction: it was disabled when set to true. Now it works as expected.
@changelog_1189_li
@changelog_1192_li
Opening large database is now faster.
Opening large database is now faster.
@changelog_1190_li
@changelog_1193_li
New system property h2.socketConnectTimeout, the timeout in milliseconds to connect to a server. The default is 2000 (2 seconds).
New system property h2.socketConnectTimeout, the timeout in milliseconds to connect to a server. The default is 2000 (2 seconds).
@changelog_1191_li
@changelog_1194_li
The wrong parameters were bound to subqueries with parameters, specially when using IN(SELECT ...) and IN(...).
The wrong parameters were bound to subqueries with parameters, specially when using IN(SELECT ...) and IN(...).
@changelog_1192_li
@changelog_1195_li
Unset parameters were not detected when the query was re-compiled.
Unset parameters were not detected when the query was re-compiled.
@changelog_1193_li
@changelog_1196_li
New functions ISO_YEAR, ISO_WEEK, ISO_DAY_OF_WEEK. Thanks a lot to Robert Rathsack for implementing those!
New functions ISO_YEAR, ISO_WEEK, ISO_DAY_OF_WEEK. Thanks a lot to Robert Rathsack for implementing those!
@changelog_1194_li
@changelog_1197_li
The date functions DAYOFYEAR, DAYOFMONTH, DAYOFWEEK are now called DAY_OF_YEAR, DAY_OF_MONTH, DAY_OF_WEEK (the old names still work).
The date functions DAYOFYEAR, DAYOFMONTH, DAYOFWEEK are now called DAY_OF_YEAR, DAY_OF_MONTH, DAY_OF_WEEK (the old names still work).
@changelog_1195_li
@changelog_1198_li
An out of memory error while deleting or updating many rows could result in a strange exception.
An out of memory error while deleting or updating many rows could result in a strange exception.
@changelog_1196_li
@changelog_1199_li
Linked tables: compatibility with MS SQL Server has been improved.
Linked tables: compatibility with MS SQL Server has been improved.
@changelog_1197_li
@changelog_1200_li
Renaming tables that have foreign keys with cascade didn't work correctly.
Renaming tables that have foreign keys with cascade didn't work correctly.
@changelog_1198_li
@changelog_1201_li
The auto-reconnect feature didn't work when using the auto-server mode. Fixed.
The auto-reconnect feature didn't work when using the auto-server mode. Fixed.
@changelog_1199_li
@changelog_1202_li
Fulltext search: new method FT_DROP_INDEX.
Fulltext search: new method FT_DROP_INDEX.
@changelog_1200_li
@changelog_1203_li
The optimization to group using an index didn't work in some cases in version 1.1 (see also system property h2.optimizeGroupSorted).
The optimization to group using an index didn't work in some cases in version 1.1 (see also system property h2.optimizeGroupSorted).
@changelog_1201_li
@changelog_1204_li
OSGi meta data is included in the manifest file. An OSGi BundleActivator is included: it loads the database driver when starting the bundle, and unloads it when stopping the bundle.
OSGi meta data is included in the manifest file. An OSGi BundleActivator is included: it loads the database driver when starting the bundle, and unloads it when stopping the bundle.
@changelog_1202_li
@changelog_1205_li
The default value for MAX_MEMORY_UNDO is now 50000.
The default value for MAX_MEMORY_UNDO is now 50000.
@changelog_1203_li
@changelog_1206_li
For alias columns, ResultSetMetaData.getTableName() and getColumnName() now return the real table and column name in the default mode.
For alias columns, ResultSetMetaData.getTableName() and getColumnName() now return the real table and column name in the default mode.
@changelog_1204_li
@changelog_1207_li
In SQL scripts created with SCRIPT TO, schemas are now only created if they don't exist yet.
In SQL scripts created with SCRIPT TO, schemas are now only created if they don't exist yet.
@changelog_1205_li
@changelog_1208_li
After re-connecting to a database, the database event listener (if set) is informed about it.
After re-connecting to a database, the database event listener (if set) is informed about it.
@changelog_1206_li
@changelog_1209_li
Local temporary tables now support indexes. Thanks a lot to Matt Roy!
Local temporary tables now support indexes. Thanks a lot to Matt Roy!
@changelog_1207_li
@changelog_1210_li
RUNSCRIPT no longer uses a temporary file.
RUNSCRIPT no longer uses a temporary file.
@changelog_1208_li
@changelog_1211_li
New system table INFORMATION_SCHEMA.SESSION_STATE containing the SQL statements that make up the session state. The list currently contains variables (SET @..) and local temporary tables (without data).
New system table INFORMATION_SCHEMA.SESSION_STATE containing the SQL statements that make up the session state. The list currently contains variables (SET @..) and local temporary tables (without data).
@changelog_1209_li
@changelog_1212_li
After an automatic re-connect, part of the session state stays (the part that is stored in the SESSION_STATE table).
After an automatic re-connect, part of the session state stays (the part that is stored in the SESSION_STATE table).
@changelog_1210_li
@changelog_1213_li
The build didn't work if the directory temp didn't exist before.
The build didn't work if the directory temp didn't exist before.
@changelog_1211_li
@changelog_1214_li
New system property h2.maxReconnect (default 3) to limit the number of re-connects for the same SQL statement (this is usually only important for SHUTDOWN).
New system property h2.maxReconnect (default 3) to limit the number of re-connects for the same SQL statement (this is usually only important for SHUTDOWN).
@changelog_1212_li
@changelog_1215_li
WHERE .. IN (SELECT ...) could throw a NullPointerException.
WHERE .. IN (SELECT ...) could throw a NullPointerException.
@changelog_1213_li
@changelog_1216_li
Improved Glassfish / Toplink support in H2Platform thanks to Marcio Borges from Brazil. Thanks a lot!
Improved Glassfish / Toplink support in H2Platform thanks to Marcio Borges from Brazil. Thanks a lot!
@changelog_1214_h2
@changelog_1217_h2
Version 1.1.100 (2008-10-04)
Version 1.1.100 (2008-10-04)
@changelog_1215_li
@changelog_1218_li
In version 1.1, the following system properties are now enabled by default: h2.lobFilesInDirectories, h2.optimizeGroupSorted, h2.optimizeInJoin, h2.shareLinkedConnections
In version 1.1, the following system properties are now enabled by default: h2.lobFilesInDirectories, h2.optimizeGroupSorted, h2.optimizeInJoin, h2.shareLinkedConnections
@changelog_1216_li
@changelog_1219_li
The H2 Console tool now works with the JDBC-ODBC bridge.
The H2 Console tool now works with the JDBC-ODBC bridge.
@changelog_1217_li
@changelog_1220_li
The H2 Console tool now supports command line options to start things separately.
The H2 Console tool now supports command line options to start things separately.
@changelog_1218_li
@changelog_1221_li
Large objects did not work for in-memory databases in server mode in Linux.
Large objects did not work for in-memory databases in server mode in Linux.
@changelog_1219_li
@changelog_1222_li
Connections from a local address other than 'localhost' were not allowed if remote connections were disabled. This was always a problem, but only got visible in the last release because the server no longer connects to 'localhost' if networked.
Connections from a local address other than 'localhost' were not allowed if remote connections were disabled. This was always a problem, but only got visible in the last release because the server no longer connects to 'localhost' if networked.
@changelog_1220_li
@changelog_1223_li
The h2console.war can now be built using the Java build.
The h2console.war can now be built using the Java build.
@changelog_1221_li
@changelog_1224_li
By default, databases are shared in the same process. For read-only databases this causes unnecessary synchronization, but safes memory. If you want that each connection opens its own database, append ;OPEN_NEW=TRUE to the database URL.
By default, databases are shared in the same process. For read-only databases this causes unnecessary synchronization, but safes memory. If you want that each connection opens its own database, append ;OPEN_NEW=TRUE to the database URL.
@changelog_1222_li
@changelog_1225_li
New auto-reconnect feature will cause the JDBC driver to reconnect to the database if the connection is lost. To enable, append ;AUTO_RECONNECT=TRUE to the database URL. This is specially helpful when using AUTO_SERVER. AUTO_SERVER automatically uses auto-reconnect.
New auto-reconnect feature will cause the JDBC driver to reconnect to the database if the connection is lost. To enable, append ;AUTO_RECONNECT=TRUE to the database URL. This is specially helpful when using AUTO_SERVER. AUTO_SERVER automatically uses auto-reconnect.
@changelog_1223_li
@changelog_1226_li
CreateCluster: the property 'serverlist' is now called 'serverList'.
CreateCluster: the property 'serverlist' is now called 'serverList'.
@changelog_1224_li
@changelog_1227_li
The ConvertTraceFile tool could not parse some files because the trace mechanism did not encode prepared statement parameters.
The ConvertTraceFile tool could not parse some files because the trace mechanism did not encode prepared statement parameters.
@changelog_1225_li
@changelog_1228_li
Databases names can now be one character long (the minimum size used to be 2 characters).
Databases names can now be one character long (the minimum size used to be 2 characters).
@changelog_1226_h2
@changelog_1229_h2
Version 1.0.79 (2008-09-26)
Version 1.0.79 (2008-09-26)
@changelog_1227_li
@changelog_1230_li
Linked tables that point to the same database can now share the connection within the same database. Access to the same connection is serialized. To enable this feature, set the system property h2.shareLinkedConnections to true.
Linked tables that point to the same database can now share the connection within the same database. Access to the same connection is serialized. To enable this feature, set the system property h2.shareLinkedConnections to true.
@changelog_1228_li
@changelog_1231_li
Multiple processes can now access the same database without having to explicitly start the server. To do that, append ;AUTO_SERVER=TRUE to the database URL. In this case, the server is started automatically if the connection is in embedded mode, and the server mode is used if a server is running. If the process that opened the first connection is closed, the other client need to reconnect (there is no automatic re-connect so far). Remote connections are allowed, but only to this database.
Multiple processes can now access the same database without having to explicitly start the server. To do that, append ;AUTO_SERVER=TRUE to the database URL. In this case, the server is started automatically if the connection is in embedded mode, and the server mode is used if a server is running. If the process that opened the first connection is closed, the other client need to reconnect (there is no automatic re-connect so far). Remote connections are allowed, but only to this database.
@changelog_1229_li
@changelog_1232_li
The server tool now displays the correct IP address if networked.
The server tool now displays the correct IP address if networked.
@changelog_1230_li
@changelog_1233_li
Can now start a TCP server with port 0 (automatically select a port).
Can now start a TCP server with port 0 (automatically select a port).
@changelog_1231_li
@changelog_1234_li
Result sets with just a unique index can now be updated (previously a primary key was required).
Result sets with just a unique index can now be updated (previously a primary key was required).
@changelog_1232_li
@changelog_1235_li
LINKED TABLE: the schema name can now be set. When multiple tables exist in different schema, and the schema name is not set, an exception is thrown.
LINKED TABLE: the schema name can now be set. When multiple tables exist in different schema, and the schema name is not set, an exception is thrown.
@changelog_1233_li
@changelog_1236_li
LINKED TABLE: worked around a bug in Oracle with the CHAR data type.
LINKED TABLE: worked around a bug in Oracle with the CHAR data type.
@changelog_1234_li
@changelog_1237_li
Faster hash code calculation for large binary arrays.
Faster hash code calculation for large binary arrays.
@changelog_1235_li
@changelog_1238_li
Faster storage re-use algorithm thanks to Greg Dhuse from cleversafe.com.
Faster storage re-use algorithm thanks to Greg Dhuse from cleversafe.com.
@changelog_1236_li
@changelog_1239_li
The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
@changelog_1237_li
@changelog_1240_li
The H2 Console now abbreviates large texts in results.
The H2 Console now abbreviates large texts in results.
@changelog_1238_li
@changelog_1241_li
Multiple UNION queries could not be used in derived tables.
Multiple UNION queries could not be used in derived tables.
@changelog_1239_li
@changelog_1242_li
Linked tables can now be read-only.
Linked tables can now be read-only.
@changelog_1240_li
@changelog_1243_li
Temporary linked tables are now supported.
Temporary linked tables are now supported.
@changelog_1241_li
@changelog_1244_li
It was possible to create tables in read-only databases.
It was possible to create tables in read-only databases.
@changelog_1242_li
@changelog_1245_li
SET SCHEMA_SEARCH_PATH is now documented.
SET SCHEMA_SEARCH_PATH is now documented.
@changelog_1243_li
@changelog_1246_li
SET SCHEMA did not work for views.
SET SCHEMA did not work for views.
@changelog_1244_li
@changelog_1247_li
Row level locking for MVCC is now enabled. The exception 'Concurrent update in table ...' is still thrown, but only after the lock timeout.
Row level locking for MVCC is now enabled. The exception 'Concurrent update in table ...' is still thrown, but only after the lock timeout.
@changelog_1245_li
@changelog_1248_li
The maximum log file size setting was ignored for large databases.
The maximum log file size setting was ignored for large databases.
@changelog_1246_li
@changelog_1249_li
Multi-Version Concurrency (MVCC) may no longer be used when using the multi-threaded kernel feature (MULTI_THREADED). An exception is thrown when trying to connect with both settings. Additional synchronization is required before those features can be used together.
Multi-Version Concurrency (MVCC) may no longer be used when using the multi-threaded kernel feature (MULTI_THREADED). An exception is thrown when trying to connect with both settings. Additional synchronization is required before those features can be used together.
@changelog_1247_li
@changelog_1250_li
The data type JAVA_OBJECT could not be used in updatable result sets.
The data type JAVA_OBJECT could not be used in updatable result sets.
@changelog_1248_li
@changelog_1251_li
The system property h2.optimizeInJoin did not work correctly.
The system property h2.optimizeInJoin did not work correctly.
@changelog_1249_li
@changelog_1252_li
Conditions such as ID=? AND ID>? were slow.
Conditions such as ID=? AND ID>? were slow.
@changelog_1250_h2
@changelog_1253_h2
Version 1.0.78 (2008-08-28)
Version 1.0.78 (2008-08-28)
@changelog_1251_li
@changelog_1254_li
The documentation no longer uses a frameset (except the Javadocs).
The documentation no longer uses a frameset (except the Javadocs).
@changelog_1252_li
@changelog_1255_li
When using DB_CLOSE_DELAY, sometimes a NullPointerException is thrown when the database is opened almost at the same time as it is closed automatically. Thanks a lot to Dmitry Pekar for finding this!
When using DB_CLOSE_DELAY, sometimes a NullPointerException is thrown when the database is opened almost at the same time as it is closed automatically. Thanks a lot to Dmitry Pekar for finding this!
@changelog_1253_li
@changelog_1256_li
Java methods with variable number of parameters can now be used (for Java 1.5 or newer).
Java methods with variable number of parameters can now be used (for Java 1.5 or newer).
@changelog_1254_li
@changelog_1257_li
The Japanese translation has been improved by Masahiro Ikemoto. Thanks a lot!
The Japanese translation has been improved by Masahiro Ikemoto. Thanks a lot!
@changelog_1255_li
@changelog_1258_li
The H2 Console replaced an empty user name with a single space.
The H2 Console replaced an empty user name with a single space.
@changelog_1256_li
@changelog_1259_li
The build target 'build jarSmall' now includes the embedded database.
The build target 'build jarSmall' now includes the embedded database.
@changelog_1257_li
@changelog_1260_li
JdbcDataSource now keeps the password in a char array where possible.
JdbcDataSource now keeps the password in a char array where possible.
@changelog_1258_li
@changelog_1261_li
ResultSet.absolute did not always work with large result sets.
ResultSet.absolute did not always work with large result sets.
@changelog_1259_li
@changelog_1262_li
Column aliases can now be used in GROUP BY and HAVING.
Column aliases can now be used in GROUP BY and HAVING.
@changelog_1260_li
@changelog_1263_li
Jason Brittain has contributed MySQL date functions. Thanks a lot! They are not in the h2.jar file currently, but in src/tools/org/h2/mode/FunctionsMySQL.java. To install, add this class to the classpath and call FunctionsMySQL.register(conn) in the Java code.
Jason Brittain has contributed MySQL date functions. Thanks a lot! They are not in the h2.jar file currently, but in src/tools/org/h2/mode/FunctionsMySQL.java. To install, add this class to the classpath and call FunctionsMySQL.register(conn) in the Java code.
@changelog_1261_h2
@changelog_1264_h2
Version 1.0.77 (2008-08-16)
Version 1.0.77 (2008-08-16)
@changelog_1262_li
@changelog_1265_li
JaQu is now using prepared statements and supports Date, Time, Timestamp.
JaQu is now using prepared statements and supports Date, Time, Timestamp.
@changelog_1263_li
@changelog_1266_li
When using remote in-memory databases, large LOB objects did not work.
When using remote in-memory databases, large LOB objects did not work.
@changelog_1264_li
@changelog_1267_li
Timestamp columns such as TIMESTAMP(6) were not compatible to other database.
Timestamp columns such as TIMESTAMP(6) were not compatible to other database.
@changelog_1265_li
@changelog_1268_li
Opening a large database was slow if there was a problem opening the previous time.
Opening a large database was slow if there was a problem opening the previous time.
@changelog_1266_li
@changelog_1269_li
NOT IN(SELECT ...) was incorrect if the subquery returns no rows.
NOT IN(SELECT ...) was incorrect if the subquery returns no rows.
@changelog_1267_li
@changelog_1270_li
CREATE TABLE AS SELECT did not work correctly in the multi-version concurrency mode.
CREATE TABLE AS SELECT did not work correctly in the multi-version concurrency mode.
@changelog_1268_li
@changelog_1271_li
Support a comma before closing a list, as in: create table test(id int,)
Support a comma before closing a list, as in: create table test(id int,)
@changelog_1269_li
@changelog_1272_li
MySQL compatibility: linked tables had lower case column names on some systems.
MySQL compatibility: linked tables had lower case column names on some systems.
@changelog_1270_li
@changelog_1273_li
DB2 compatibility: the DB2 fetch-first-clause is supported.
DB2 compatibility: the DB2 fetch-first-clause is supported.
@changelog_1271_li
@changelog_1274_li
Oracle compatibility: old style outer join syntax using (+) did work correctly sometimes.
Oracle compatibility: old style outer join syntax using (+) did work correctly sometimes.
@changelog_1272_li
@changelog_1275_li
ResultSet.setFetchSize is now supported.
ResultSet.setFetchSize is now supported.
@changelog_1273_li
@changelog_1276_li
It has been reported that when using Install4j on some Linux systems and enabling the 'pack200' option, the h2.jar becomes corrupted by the install process, causing application failure. A workaround is to add an empty file h2.jar.nopack next to the h2.jar file. The reason for this problem is not known.
It has been reported that when using Install4j on some Linux systems and enabling the 'pack200' option, the h2.jar becomes corrupted by the install process, causing application failure. A workaround is to add an empty file h2.jar.nopack next to the h2.jar file. The reason for this problem is not known.
@changelog_1274_h2
@changelog_1277_h2
Version 1.0.76 (2008-07-27)
Version 1.0.76 (2008-07-27)
@changelog_1275_li
@changelog_1278_li
The comment of a domain (user defined data type) is now used as the default column comment when creating a column with this domain.
The comment of a domain (user defined data type) is now used as the default column comment when creating a column with this domain.
@changelog_1276_li
@changelog_1279_li
Invalid database names are now detected and a better error message is thrown.
Invalid database names are now detected and a better error message is thrown.
@changelog_1277_li
@changelog_1280_li
ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
@changelog_1278_li
@changelog_1281_li
Fixed the Oracle mode: Oracle allows multiple rows only where all columns of the unique index are NULL.
Fixed the Oracle mode: Oracle allows multiple rows only where all columns of the unique index are NULL.
@changelog_1279_li
@changelog_1282_li
There is a problem with Hibernate when using Boolean columns. A patch for Hibernate has been submitted at http://opensource.atlassian.com/projects/hibernate/browse/HHH-3401
There is a problem with Hibernate when using Boolean columns. A patch for Hibernate has been submitted at http://opensource.atlassian.com/projects/hibernate/browse/HHH-3401
@changelog_1280_li
@changelog_1283_li
ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
@changelog_1281_li
@changelog_1284_li
H2 Console: The progress display when opening a database has been improved.
H2 Console: The progress display when opening a database has been improved.
@changelog_1282_li
@changelog_1285_li
The error message when the server doesn't start has been improved.
The error message when the server doesn't start has been improved.
@changelog_1283_li
@changelog_1286_li
Key values can now be changed in updatable result sets.
Key values can now be changed in updatable result sets.
@changelog_1284_li
@changelog_1287_li
Changes in updatable result sets are now visible even when resetting the result set.
Changes in updatable result sets are now visible even when resetting the result set.
@changelog_1285_li
@changelog_1288_li
Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
@changelog_1286_li
@changelog_1289_li
The database file was growing after deleting many rows, and after large update operations.
The database file was growing after deleting many rows, and after large update operations.
@changelog_1287_h2
@changelog_1290_h2
Version 1.0.75 (2008-07-14)
Version 1.0.75 (2008-07-14)
@changelog_1288_li
@changelog_1291_li
Multi version concurrency (MVCC): when a row was updated or deleted, but this change was rolled back, the row was not visible by other sessions if no index was used to access it. Fixed.
Multi version concurrency (MVCC): when a row was updated or deleted, but this change was rolled back, the row was not visible by other sessions if no index was used to access it. Fixed.
@changelog_1289_li
@changelog_1292_li
Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
@changelog_1290_li
@changelog_1293_li
The CSVREAD method did not process NULL correctly when using a whitespace field separator.
The CSVREAD method did not process NULL correctly when using a whitespace field separator.
@changelog_1291_li
@changelog_1294_li
Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
@changelog_1292_li
@changelog_1295_li
Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
@changelog_1293_li
@changelog_1296_li
When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
@changelog_1294_li
@changelog_1297_li
Referential constraint checking improvement: now the constraint is only checked if the key column values change.
Referential constraint checking improvement: now the constraint is only checked if the key column values change.
@changelog_1295_li
@changelog_1298_li
Some database metadata calls returned the wrong data type for DATA_TYPE columns.
Some database metadata calls returned the wrong data type for DATA_TYPE columns.
@changelog_1296_li
@changelog_1299_li
The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
@changelog_1297_li
@changelog_1300_li
The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
@changelog_1298_li
@changelog_1301_li
The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
@changelog_1299_li
@changelog_1302_li
Stopping a WebServer didn't always work. Fixed.
Stopping a WebServer didn't always work. Fixed.
@changelog_1300_h2
@changelog_1303_h2
Version 1.0.74 (2008-06-21)
Version 1.0.74 (2008-06-21)
@changelog_1301_li
@changelog_1304_li
Work on row level locking has been started (but there is nothing usable yet).
Work on row level locking has been started (but there is nothing usable yet).
@changelog_1302_li
@changelog_1305_li
JaQu (Java Query), a tool similar to LINQ (Language Integrated Query; from Microsoft) is now included under src/tools/org/h2/jaqu. A small sample application is included under src/test/org/h2/test/jaqu.
JaQu (Java Query), a tool similar to LINQ (Language Integrated Query; from Microsoft) is now included under src/tools/org/h2/jaqu. A small sample application is included under src/test/org/h2/test/jaqu.
@changelog_1303_li
@changelog_1306_li
The source code is now switched to Java 1.6 by default. To switch back to Java 1.4, run 'build compile'. The h2.jar file is still Java 1.4.
The source code is now switched to Java 1.6 by default. To switch back to Java 1.4, run 'build compile'. The h2.jar file is still Java 1.4.
@changelog_1304_li
@changelog_1307_li
The ChangePassword tool is now called ChangeFileEncryption.
The ChangePassword tool is now called ChangeFileEncryption.
@changelog_1305_li
@changelog_1308_li
It is no longer allowed to create columns with the data type NULL. Also, it is no longer allowed to convert a column to the data type NULL. This was possible before but caused data loss.
It is no longer allowed to create columns with the data type NULL. Also, it is no longer allowed to convert a column to the data type NULL. This was possible before but caused data loss.
@changelog_1306_li
@changelog_1309_li
When using computed columns or default values with a different data type than the column data type, a class cast exception could occur. Fixed.
When using computed columns or default values with a different data type than the column data type, a class cast exception could occur. Fixed.
@changelog_1307_li
@changelog_1310_li
Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
@changelog_1308_li
@changelog_1311_li
RUNSCRIPT could throw a NullPointerException if the script name was an expression.
RUNSCRIPT could throw a NullPointerException if the script name was an expression.
@changelog_1309_li
@changelog_1312_li
Improved compatibility. New compatibility modes for Oracle and Derby. New compatibility flag uniqueIndexNullDistinct to only allow one row with 'NULL' in a unique index. This flag is enabled for Derby, Oracle, MSSQLServer, and HSQLDB.
Improved compatibility. New compatibility modes for Oracle and Derby. New compatibility flag uniqueIndexNullDistinct to only allow one row with 'NULL' in a unique index. This flag is enabled for Derby, Oracle, MSSQLServer, and HSQLDB.
@changelog_1310_li
@changelog_1313_li
Linked tables: To view the statements that are executed against the target table, set the trace level to 3.
Linked tables: To view the statements that are executed against the target table, set the trace level to 3.
@changelog_1311_li
@changelog_1314_li
RunScript tool: new options to show and check the results of queries.
RunScript tool: new options to show and check the results of queries.
@changelog_1312_li
@changelog_1315_li
Deadlocks are now detected. One transaction is rolled back automatically.
Deadlocks are now detected. One transaction is rolled back automatically.
@changelog_1313_li
@changelog_1316_li
The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
@changelog_1314_li
@changelog_1317_li
Support for overloaded Java methods. A user defined function can now be bound to multiple Java methods, if the Java methods have the same name but a different number of parameters. Thanks to Gary Tong for providing a patch!
Support for overloaded Java methods. A user defined function can now be bound to multiple Java methods, if the Java methods have the same name but a different number of parameters. Thanks to Gary Tong for providing a patch!
@download_1000_h1
@download_1000_h1
...
@@ -8033,163 +8042,163 @@ Time based cache writing (one second after writing the log)
...
@@ -8033,163 +8042,163 @@ Time based cache writing (one second after writing the log)
Check state of H2 driver for DDLUtils: https://issues.apache.org/jira/browse/DDLUTILS-185
Check state of H2 driver for DDLUtils: https://issues.apache.org/jira/browse/DDLUTILS-185
@roadmap_1213_li
@roadmap_1213_li
Index usage for REGEXP LIKE.
Support JMX: Create an MBean for each database and server (support JConsole). See http://thedevcloud.blogspot.com/2008/10/displaying-hsql-database-manager-in.html http://java.sun.com/j2se/1.5.0/docs/api/java/lang/management/ManagementFactory.html#getPlatformMBeanServer() http://java.sun.com/j2se/1.5.0/docs/guide/management/agent.html
@roadmap_1214_li
@roadmap_1214_li
Compatibility: add a role DBA (like ADMIN).
Index usage for REGEXP LIKE.
@roadmap_1215_li
@roadmap_1215_li
Better support multiple processors for in-memory databases.
Compatibility: add a role DBA (like ADMIN).
@roadmap_1216_li
@roadmap_1216_li
Access rights: remember the owner of an object. COMMENT: allow owner of object to change it.
Better support multiple processors for in-memory databases.
@roadmap_1217_li
@roadmap_1217_li
Access rights: Finer grained access control (grant access for specific functions)
Access rights: remember the owner of an object. COMMENT: allow owner of object to change it.
@roadmap_1218_li
@roadmap_1218_li
Support N'text'
Access rights: Finer grained access control (grant access for specific functions)
@roadmap_1219_li
@roadmap_1219_li
Support SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger
Support N'text'
@roadmap_1220_li
@roadmap_1220_li
Set a connection read only (Connection.setReadOnly)
Support SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger
@roadmap_1221_li
@roadmap_1221_li
In MySQL mode, for AUTO_INCREMENT columns, don't set the primary key
Set a connection read only (Connection.setReadOnly)
@roadmap_1222_li
@roadmap_1222_li
Use JDK 1.4 file locking to create the lock file (but not yet by default); writing a system property to detect concurrent access from the same VM (different classloaders).
In MySQL mode, for AUTO_INCREMENT columns, don't set the primary key
@roadmap_1223_li
@roadmap_1223_li
Support compatibility for jdbc:hsqldb:res:
Use JDK 1.4 file locking to create the lock file (but not yet by default); writing a system property to detect concurrent access from the same VM (different classloaders).
@roadmap_1224_li
@roadmap_1224_li
Provide an Java SQL builder with standard and H2 syntax
Support compatibility for jdbc:hsqldb:res:
@roadmap_1225_li
@roadmap_1225_li
Trace: write OS, file system, JVM,... when opening the database
Provide an Java SQL builder with standard and H2 syntax
@roadmap_1226_li
@roadmap_1226_li
Support indexes for views (probably requires materialized views)
Trace: write OS, file system, JVM,... when opening the database
@roadmap_1227_li
@roadmap_1227_li
Document SET SEARCH_PATH, BEGIN, EXECUTE, parameters
Support indexes for views (probably requires materialized views)
@roadmap_1228_li
@roadmap_1228_li
Browser: use Desktop.isDesktopSupported and browse when using JDK 1.6
Document SET SEARCH_PATH, BEGIN, EXECUTE, parameters
@roadmap_1229_li
@roadmap_1229_li
Server: use one listener (detect if the request comes from an PG or TCP client)
Browser: use Desktop.isDesktopSupported and browse when using JDK 1.6
@roadmap_1230_li
@roadmap_1230_li
Store dates as 'local'. Existing files use GMT. Use escape syntax for compatibility.
Server: use one listener (detect if the request comes from an PG or TCP client)
@roadmap_1231_li
@roadmap_1231_li
Support data type INTERVAL
Store dates as 'local'. Existing files use GMT. Use escape syntax for compatibility.
@roadmap_1232_li
@roadmap_1232_li
Optimize SELECT MIN(ID), MAX(ID), COUNT(*) FROM TEST WHERE ID BETWEEN 100 AND 200
Support data type INTERVAL
@roadmap_1233_li
@roadmap_1233_li
Support Oracle functions: TRUNC, NVL2, TO_CHAR, TO_DATE, TO_NUMBER
Optimize SELECT MIN(ID), MAX(ID), COUNT(*) FROM TEST WHERE ID BETWEEN 100 AND 200
Does the FTP server has problems with multithreading?
Javadoc: document design patterns used
@roadmap_1259_li
@roadmap_1259_li
Write an article about SQLInjection (h2\src\docsrc\html\images\SQLInjection.txt)
Does the FTP server has problems with multithreading?
@roadmap_1260_li
@roadmap_1260_li
Convert SQL-injection-2.txt to html document, include SQLInjection.java sample
Write an article about SQLInjection (h2\src\docsrc\html\images\SQLInjection.txt)
@roadmap_1261_li
@roadmap_1261_li
Improve LOB in directories performance
Convert SQL-injection-2.txt to html document, include SQLInjection.java sample
@roadmap_1262_li
@roadmap_1262_li
Web site design: http://www.igniterealtime.org/projects/openfire/index.jsp
Improve LOB in directories performance
@roadmap_1263_li
@roadmap_1263_li
HSQLDB compatibility: Openfire server uses: CREATE SCHEMA PUBLIC AUTHORIZATION DBA; CREATE USER SA PASSWORD ""; GRANT DBA TO SA; SET SCHEMA PUBLIC
Web site design: http://www.igniterealtime.org/projects/openfire/index.jsp
@roadmap_1264_li
@roadmap_1264_li
Web site: Rename Performance to Comparison [/Compatibility], move Comparison to Other Database Engines to Comparison, move Products that Work with H2 to Comparison, move Performance Tuning to Advanced Topics
HSQLDB compatibility: Openfire server uses: CREATE SCHEMA PUBLIC AUTHORIZATION DBA; CREATE USER SA PASSWORD ""; GRANT DBA TO SA; SET SCHEMA PUBLIC
@roadmap_1265_li
@roadmap_1265_li
Support JMX: Create an MBean for each database and server (support JConsole). See http://thedevcloud.blogspot.com/2008/10/displaying-hsql-database-manager-in.html
Web site: Rename Performance to Comparison [/Compatibility], move Comparison to Other Database Engines to Comparison, move Products that Work with H2 to Comparison, move Performance Tuning to Advanced Topics
@roadmap_1266_li
@roadmap_1266_li
Translation: use ?? in help.csv
Translation: use ?? in help.csv
...
@@ -8560,13 +8569,16 @@ Sybase/DB2/Oracle compatibility: support out parameters in stored procedures - S
...
@@ -8560,13 +8569,16 @@ Sybase/DB2/Oracle compatibility: support out parameters in stored procedures - S
@roadmap_1388_li
@roadmap_1388_li
Support INTERVAL data type (see Oracle and others).
Support INTERVAL data type (see Oracle and others).
@roadmap_1389_h2
@roadmap_1389_li
Combine Server and Console tool (only keep Server).
@roadmap_1390_h2
Not Planned
Not Planned
@roadmap_1390_li
@roadmap_1391_li
HSQLDB (did) support this: select id i from test where i<0 (other databases don't). Supporting it may break compatibility.
HSQLDB (did) support this: select id i from test where i<0 (other databases don't). Supporting it may break compatibility.
@roadmap_1391_li
@roadmap_1392_li
String.intern (so that Strings can be compared with ==) will not be used because some VMs have problems when used extensively.
String.intern (so that Strings can be compared with ==) will not be used because some VMs have problems when used extensively.
#The MVCC feature allows higher concurrency than using (table level or row level) locks. When using MVCC in this database, delete, insert and update operations will only issue a shared lock on the table. An exclusive lock is still used when adding or removing columns, when dropping the table, and when using SELECT ... FOR UPDATE. Connections only 'see' committed data, and own changes. That means, if connection A updates a row but doesn't commit this change yet, connection B will see the old value. Only when the change is committed, the new value is visible by other connections (read committed). If multiple connections concurrently try to update the same row, this database fails fast: a concurrent update exception is thrown.
#The MVCC feature allows higher concurrency than using (table level or row level) locks. When using MVCC in this database, delete, insert and update operations will only issue a shared lock on the table. An exclusive lock is still used when adding or removing columns, when dropping the table, and when using SELECT ... FOR UPDATE. Connections only 'see' committed data, and own changes. That means, if connection A updates a row but doesn't commit this change yet, connection B will see the old value. Only when the change is committed, the new value is visible by other connections (read committed). If multiple connections concurrently try to update the same row, the database waits until it can apply the change, but at most until the lock timeout expires.
@advanced_1070_p
@advanced_1070_p
#To use the MVCC feature, append MVCC=TRUE to the database URL:
#To use the MVCC feature, append MVCC=TRUE to the database URL:
...
@@ -1174,942 +1174,951 @@ Centralリポジトリの利用
...
@@ -1174,942 +1174,951 @@ Centralリポジトリの利用
#Next Version (unreleased)
#Next Version (unreleased)
@changelog_1002_li
@changelog_1002_li
#The RunScript tool and SQL statement did not work with the compression method LZF.
#Server-less multi-connection mode: more bugs are fixed.
@changelog_1003_li
@changelog_1003_li
#Fulltext search: searching for NULL or an empty string threw an exception.
#The download page now included the SHA1 checksums.
@changelog_1004_li
@changelog_1004_li
#Lucene fulltext search: FTL_DROP_ALL did not drop the triggers.
#Shell tool: the file encoding workaround is now documented if you run java org.h2.tools.Shell -?.
@changelog_1005_li
@changelog_1005_li
#Backup: if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
#The RunScript tool and SQL statement did not work with the compression method LZF.
@changelog_1006_li
@changelog_1006_li
#Data types: LONG is now an alias for BIGINT.
#Fulltext search: searching for NULL or an empty string threw an exception.
@changelog_1007_li
@changelog_1007_li
#Lucene fulltext search: FTL_DROP_ALL did not drop the triggers.
@changelog_1008_li
#Backup: if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
@changelog_1009_li
#Data types: LONG is now an alias for BIGINT.
@changelog_1010_li
#More bugs in the server-less multi-connection mode have been fixed.
#More bugs in the server-less multi-connection mode have been fixed.
@changelog_1008_h2
@changelog_1011_h2
#Version 1.1.114 (2009-06-01)
#Version 1.1.114 (2009-06-01)
@changelog_1009_li
@changelog_1012_li
#ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
#ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
@changelog_1010_li
@changelog_1013_li
#Fulltext search: Data is no longer deleted and re-inserted if the indexed columns didn't change.
#Fulltext search: Data is no longer deleted and re-inserted if the indexed columns didn't change.
@changelog_1011_li
@changelog_1014_li
#In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
#In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
@changelog_1012_li
@changelog_1015_li
#Microsoft Windows Vista: when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
#Microsoft Windows Vista: when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
@changelog_1013_li
@changelog_1016_li
#The Recover tool did not always work when the database contains referential integrity constraints.
#The Recover tool did not always work when the database contains referential integrity constraints.
@changelog_1014_li
@changelog_1017_li
#Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
#Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
@changelog_1015_h2
@changelog_1018_h2
#Version 1.1.113 (2009-05-21)
#Version 1.1.113 (2009-05-21)
@changelog_1016_li
@changelog_1019_li
#Shell tool: the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
#Shell tool: the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
@changelog_1017_li
@changelog_1020_li
#JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
#JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
@changelog_1018_li
@changelog_1021_li
#When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
#When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
@changelog_1019_li
@changelog_1022_li
#Identifiers with a digit and then a dollar sign didn't work. Example: A1$B.
#Identifiers with a digit and then a dollar sign didn't work. Example: A1$B.
@changelog_1020_li
@changelog_1023_li
#MS SQL Server compatibility: support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
#MS SQL Server compatibility: support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
@changelog_1021_li
@changelog_1024_li
#Android: Workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
#Android: Workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
@changelog_1022_li
@changelog_1025_li
#Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
#Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
@changelog_1023_li
@changelog_1026_li
#Benchmark: the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
#Benchmark: the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
@changelog_1024_li
@changelog_1027_li
#H2 Console: command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
#H2 Console: command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
@changelog_1025_li
@changelog_1028_li
#Cache: support for a second level soft-references cache. To enable it, append ;CACHE_TYPE=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek!
#Cache: support for a second level soft-references cache. To enable it, append ;CACHE_TYPE=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek!
@changelog_1026_h2
@changelog_1029_h2
#Version 1.1.112 (2009-05-01)
#Version 1.1.112 (2009-05-01)
@changelog_1027_li
@changelog_1030_li
#JdbcPreparedStatement.toString() could throw a NullPointerException.
#JdbcPreparedStatement.toString() could throw a NullPointerException.
#Connection pool: the default login timeout is now 5 minutes.
#Connection pool: the default login timeout is now 5 minutes.
@changelog_1030_li
@changelog_1033_li
#After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
#After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
@changelog_1031_li
@changelog_1034_li
#More bugs in the server-less multi-connection mode have been fixed: Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
#More bugs in the server-less multi-connection mode have been fixed: Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
@changelog_1032_li
@changelog_1035_li
#GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
#GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
@changelog_1033_li
@changelog_1036_li
#Improved error message when the .lock.db file modification time is in the future.
#Improved error message when the .lock.db file modification time is in the future.
@changelog_1034_li
@changelog_1037_li
#The MERGE statement now returns 0 as the generated key if the row was updated.
#The MERGE statement now returns 0 as the generated key if the row was updated.
@changelog_1035_li
@changelog_1038_li
#Running code coverage is now automated.
#Running code coverage is now automated.
@changelog_1036_li
@changelog_1039_li
#A file system implementation can now be registered using FileSystem.register.
#A file system implementation can now be registered using FileSystem.register.
@changelog_1037_li
@changelog_1040_li
#The database file system is no longer included in the jar file, it moved to the test section.
#The database file system is no longer included in the jar file, it moved to the test section.
@changelog_1038_h2
@changelog_1041_h2
#Version 1.1.111 (2009-04-10)
#Version 1.1.111 (2009-04-10)
@changelog_1039_li
@changelog_1042_li
#In-memory databases can now run inside the Google App Engine.
#In-memory databases can now run inside the Google App Engine.
@changelog_1040_li
@changelog_1043_li
#Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
#Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
@changelog_1041_li
@changelog_1044_li
#The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
#The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
@changelog_1042_li
@changelog_1045_li
#The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
#The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
@changelog_1043_li
@changelog_1046_li
#Sometimes a StackOverflow occurred when checking for deadlock. See also http://code.google.com/p/h2database/issues/detail?id=61
#Sometimes a StackOverflow occurred when checking for deadlock. See also http://code.google.com/p/h2database/issues/detail?id=61
@changelog_1044_li
@changelog_1047_li
#The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
#The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
@changelog_1045_h2
@changelog_1048_h2
#Version 1.1.110 (2009-04-03)
#Version 1.1.110 (2009-04-03)
@changelog_1046_li
@changelog_1049_li
#Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch!
#Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch!
@changelog_1047_li
@changelog_1050_li
#The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
#The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
@changelog_1048_li
@changelog_1051_li
#The data type of a SUBSTRING method was wrong.
#The data type of a SUBSTRING method was wrong.
@changelog_1049_li
@changelog_1052_li
#ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
#ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
@changelog_1050_li
@changelog_1053_li
#H2 Console: the browser system property now supports a list of arguments. Example: java -Dh2.browser="open,-a,Safari,%url" ...
#H2 Console: the browser system property now supports a list of arguments. Example: java -Dh2.browser="open,-a,Safari,%url" ...
@changelog_1051_li
@changelog_1054_li
#Improved Javadoc navigation (similar to Scaladoc).
#Improved Javadoc navigation (similar to Scaladoc).
@changelog_1052_li
@changelog_1055_li
#H2 Console: auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
#H2 Console: auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
@changelog_1053_li
@changelog_1056_li
#DISTINCT and GROUP BY on a CLOB column was broken.
#DISTINCT and GROUP BY on a CLOB column was broken.
@changelog_1054_li
@changelog_1057_li
#The FTP server moved to the tools section and is no longer included in the h2*.jar file.
#The FTP server moved to the tools section and is no longer included in the h2*.jar file.
@changelog_1055_li
@changelog_1058_li
#Improved error message for unsupported features: now the message says what exactly is not supported.
#Improved error message for unsupported features: now the message says what exactly is not supported.
@changelog_1056_li
@changelog_1059_li
#Improved OSGi support.
#Improved OSGi support.
@changelog_1057_li
@changelog_1060_li
#Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
#Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
@changelog_1058_li
@changelog_1061_li
#The API of the tools changed a bit (each tool now returns an exit code).
#The API of the tools changed a bit (each tool now returns an exit code).
@changelog_1059_li
@changelog_1062_li
#Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
#Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
@changelog_1060_li
@changelog_1063_li
#CREATE TABLE: improved compatibility (support for UNIQUE NOT NULL).
#CREATE TABLE: improved compatibility (support for UNIQUE NOT NULL).
@changelog_1061_li
@changelog_1064_li
#DatabaseMetaData.getSQLKeywords now returns the correct list.
#DatabaseMetaData.getSQLKeywords now returns the correct list.
@changelog_1062_li
@changelog_1065_li
#Deterministic user defined functions did not work when the parameter was a column. Fixed.
#Deterministic user defined functions did not work when the parameter was a column. Fixed.
@changelog_1063_li
@changelog_1066_li
#JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
#JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
@changelog_1064_li
@changelog_1067_li
#Creating a JdbcConnectionPool has been simplified a bit.
#Creating a JdbcConnectionPool has been simplified a bit.
@changelog_1065_li
@changelog_1068_li
#The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
#The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
@changelog_1066_li
@changelog_1069_li
#More bugs in the server-less multi-connection mode have been fixed: If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
#More bugs in the server-less multi-connection mode have been fixed: If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
@changelog_1067_li
@changelog_1070_li
#Linked tables to SQLite database can now be created.
#Linked tables to SQLite database can now be created.
@changelog_1068_li
@changelog_1071_li
#Nested IN(IN(...)) didn't work.
#Nested IN(IN(...)) didn't work.
@changelog_1069_li
@changelog_1072_li
#NIO storage: the nio: prefix was using memory mapped files instead of FileChannel.
#NIO storage: the nio: prefix was using memory mapped files instead of FileChannel.
@changelog_1070_h2
@changelog_1073_h2
#Version 1.1.109 (2009-03-14)
#Version 1.1.109 (2009-03-14)
@changelog_1071_li
@changelog_1074_li
#The optimization for IN(...) is now only used if comparing a column with an index.
#The optimization for IN(...) is now only used if comparing a column with an index.
@changelog_1072_li
@changelog_1075_li
#User defined functions can now be deterministic (see CREATE ALIAS documentation).
#User defined functions can now be deterministic (see CREATE ALIAS documentation).
@changelog_1073_li
@changelog_1076_li
#Multiple nested queries in the FROM clause with parameters did not always work.
#Multiple nested queries in the FROM clause with parameters did not always work.
@changelog_1074_li
@changelog_1077_li
#When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
#When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
@changelog_1075_li
@changelog_1078_li
#New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio: or nioMapped: as in jdbc:h2:nio:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch!
#New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio: or nioMapped: as in jdbc:h2:nio:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch!
@changelog_1076_li
@changelog_1079_li
#The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
#The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
@changelog_1077_li
@changelog_1080_li
#Could not use the same linked table multiple times in the same query.
#Could not use the same linked table multiple times in the same query.
@changelog_1078_li
@changelog_1081_li
#Bugs in the server-less multi-connection mode have been fixed.
#Bugs in the server-less multi-connection mode have been fixed.
@changelog_1079_li
@changelog_1082_li
#Column names could not be named "UNIQUE" (with the quotes).
#Column names could not be named "UNIQUE" (with the quotes).
@changelog_1080_li
@changelog_1083_li
#New system function TRANSACTION_ID() to get the current transaction identifier for a session.
#New system function TRANSACTION_ID() to get the current transaction identifier for a session.
@changelog_1081_h2
@changelog_1084_h2
#Version 1.1.108 (2009-02-28)
#Version 1.1.108 (2009-02-28)
@changelog_1082_li
@changelog_1085_li
#When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
#When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
@changelog_1083_li
@changelog_1086_li
#JdbcConnectionPool: it was possible to set a negative connection pool size.
#JdbcConnectionPool: it was possible to set a negative connection pool size.
@changelog_1084_li
@changelog_1087_li
#Fulltext search did not support table names with a backslash.
#Fulltext search did not support table names with a backslash.
@changelog_1085_li
@changelog_1088_li
#The internal IntArray class did not work correctly when initialized with a zero length array.
#The internal IntArray class did not work correctly when initialized with a zero length array.
@changelog_1086_li
@changelog_1089_li
#The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
#The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
@changelog_1087_li
@changelog_1090_li
#DATEADD does no longer require that the argument is a timestamp.
#DATEADD does no longer require that the argument is a timestamp.
@changelog_1088_li
@changelog_1091_li
#The database file locking mechanism didn't work correctly on Mac OS.
#The database file locking mechanism didn't work correctly on Mac OS.
@changelog_1089_li
@changelog_1092_li
#Some built-in functions reported the wrong precision, scale, and display size.
#Some built-in functions reported the wrong precision, scale, and display size.
@changelog_1090_li
@changelog_1093_li
#MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
#MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
@changelog_1091_li
@changelog_1094_li
#Recovery did not work if there were more than 255 lobs stored as files.
#Recovery did not work if there were more than 255 lobs stored as files.
@changelog_1092_li
@changelog_1095_li
#New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK=SERIALIZED;OPEN_NEW=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
#New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK=SERIALIZED;OPEN_NEW=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
@changelog_1093_li
@changelog_1096_li
#In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
#In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
@changelog_1094_li
@changelog_1097_li
#The WebServlet did not close the database when un-deploying the web application.
#The WebServlet did not close the database when un-deploying the web application.
@changelog_1095_li
@changelog_1098_li
#The exception message of failed INSERT or MERGE statements now includes all values and the row number.
#The exception message of failed INSERT or MERGE statements now includes all values and the row number.
@changelog_1096_li
@changelog_1099_li
#If opening a database failed with an out of memory exception, some files were not closed.
#If opening a database failed with an out of memory exception, some files were not closed.
@changelog_1097_li
@changelog_1100_li
#Optimizer: the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
#Optimizer: the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
@changelog_1098_li
@changelog_1101_li
#Improved exception message when connecting to a just started server fails.
#Improved exception message when connecting to a just started server fails.
@changelog_1099_li
@changelog_1102_li
#Connection.isValid is a bit faster.
#Connection.isValid is a bit faster.
@changelog_1100_li
@changelog_1103_li
#H2 Console: The autocomplete feature has been improved a bit. It can now better parse conditions.
#H2 Console: The autocomplete feature has been improved a bit. It can now better parse conditions.
@changelog_1101_li
@changelog_1104_li
#When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ: Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
#When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ: Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
@changelog_1102_h2
@changelog_1105_h2
#Version 1.1.107 (2009-01-24)
#Version 1.1.107 (2009-01-24)
@changelog_1103_li
@changelog_1106_li
#Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
#Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
@changelog_1104_li
@changelog_1107_li
#The MySQL compatibility extension fromUnixTime now used the English locale.
#The MySQL compatibility extension fromUnixTime now used the English locale.
@changelog_1105_li
@changelog_1108_li
#When using LOG=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
#When using LOG=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
@changelog_1106_li
@changelog_1109_li
#In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE=TEXT) but support for this format was removed in version 1.1.105.
#In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE=TEXT) but support for this format was removed in version 1.1.105.
@changelog_1107_li
@changelog_1110_li
#Enabling the trace mechanism by creating a specially named file is no longer supported.
#Enabling the trace mechanism by creating a specially named file is no longer supported.
@changelog_1108_h2
@changelog_1111_h2
#Version 1.1.106 (2009-01-04)
#Version 1.1.106 (2009-01-04)
@changelog_1109_li
@changelog_1112_li
#Statement.setQueryTimeout did not work correctly for some statements.
#Statement.setQueryTimeout did not work correctly for some statements.
@changelog_1110_li
@changelog_1113_li
#CREATE DOMAIN: Built-in data types can now only be changed if no tables exist.
#CREATE DOMAIN: Built-in data types can now only be changed if no tables exist.
@changelog_1111_li
@changelog_1114_li
#Linked tables: a workaround for Oracle DATE columns has been implemented.
#Linked tables: a workaround for Oracle DATE columns has been implemented.
@changelog_1112_li
@changelog_1115_li
#DatabaseMetaData.getPrimaryKeys: The column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
#DatabaseMetaData.getPrimaryKeys: The column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
@changelog_1113_li
@changelog_1116_li
#Using IN(..) inside a IN(SELECT..) did not always work.
#Using IN(..) inside a IN(SELECT..) did not always work.
@changelog_1114_li
@changelog_1117_li
#Views with IN(..) that used a view itself did not work.
#Views with IN(..) that used a view itself did not work.
@changelog_1115_li
@changelog_1118_li
#Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
#Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
@changelog_1116_li
@changelog_1119_li
#The license change a bit: so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
#The license change a bit: so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
@changelog_1117_li
@changelog_1120_li
#Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem!
#Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem!
@changelog_1118_li
@changelog_1121_li
#When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database: Lock file modified in the future').
#When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database: Lock file modified in the future').
@changelog_1119_h2
@changelog_1122_h2
#Version 1.1.105 (2008-12-19)
#Version 1.1.105 (2008-12-19)
@changelog_1120_li
@changelog_1123_li
#The setting STORAGE=TEXT is no longer supported.
#The setting STORAGE=TEXT is no longer supported.
@changelog_1121_li
@changelog_1124_li
#Deleting a database using the tool DeleteDbFiles deleted LOB files of other databases in the same directory.
#Deleting a database using the tool DeleteDbFiles deleted LOB files of other databases in the same directory.
@changelog_1122_li
@changelog_1125_li
#When used in a subquery, LIKE and IN(..) did not work correctly sometimes.
#When used in a subquery, LIKE and IN(..) did not work correctly sometimes.
@changelog_1123_li
@changelog_1126_li
#The fulltext search documentation has been improved.
#The fulltext search documentation has been improved.
@changelog_1124_li
@changelog_1127_li
#ARRAY_GET returned the wrong data type (ARRAY). Now it returns VARCHAR.
#ARRAY_GET returned the wrong data type (ARRAY). Now it returns VARCHAR.
@changelog_1125_li
@changelog_1128_li
#Natural join: the joined columns are not repeated any more when using SELECT *.
#Natural join: the joined columns are not repeated any more when using SELECT *.
@changelog_1126_li
@changelog_1129_li
#User defined aggregate functions: the method getType expected internal data types instead of SQL types.
#User defined aggregate functions: the method getType expected internal data types instead of SQL types.
@changelog_1127_li
@changelog_1130_li
#User defined aggregate functions did not work if there was no group by expression.
#User defined aggregate functions did not work if there was no group by expression.
@changelog_1128_li
@changelog_1131_li
#MySQL compatibility: support for := assignment as in @sum:=@sum+x
#MySQL compatibility: support for := assignment as in @sum:=@sum+x
@changelog_1129_li
@changelog_1132_li
#INSERT INTO TEST(SELECT * FROM TEST) is now supported.
#INSERT INTO TEST(SELECT * FROM TEST) is now supported.
@changelog_1130_li
@changelog_1133_li
#Each session threw an invisible exception when garbage collected.
#Each session threw an invisible exception when garbage collected.
@changelog_1131_li
@changelog_1134_li
#Foreign key constraints that refer to a quoted column did not work.
#Foreign key constraints that refer to a quoted column did not work.
@changelog_1132_li
@changelog_1135_li
#New meta data column INFORMATION_SCHEMA.TABLES.LAST_MODIFICATION to get the table modification counter.
#New meta data column INFORMATION_SCHEMA.TABLES.LAST_MODIFICATION to get the table modification counter.
@changelog_1133_li
@changelog_1136_li
#Shell: line comments didn't work correctly.
#Shell: line comments didn't work correctly.
@changelog_1134_li
@changelog_1137_li
#H2 Console: Columns are now listed for up to 500 tables instead of 100.
#H2 Console: Columns are now listed for up to 500 tables instead of 100.
@changelog_1135_li
@changelog_1138_li
#H2 Console: Cmd+Enter executes the current statement, Alt+Space for autocomplete.
#H2 Console: Cmd+Enter executes the current statement, Alt+Space for autocomplete.
@changelog_1136_li
@changelog_1139_li
#JaQu: the maximum length of a column can now be defined using maxLength. For an example, see Product.java (maxLength(category, 255)).
#JaQu: the maximum length of a column can now be defined using maxLength. For an example, see Product.java (maxLength(category, 255)).
@changelog_1137_li
@changelog_1140_li
#R&\#305;dvan A&\#287;ar has completed the Turkish translation of the H2 Console. Thanks a lot!
#R&\#305;dvan A&\#287;ar has completed the Turkish translation of the H2 Console. Thanks a lot!
@changelog_1138_h2
@changelog_1141_h2
#Version 1.1.104 (2008-11-28)
#Version 1.1.104 (2008-11-28)
@changelog_1139_li
@changelog_1142_li
#If a query that was used like a table contained group by and was ordered by an expression that is not in the column list, an exception was thrown.
#If a query that was used like a table contained group by and was ordered by an expression that is not in the column list, an exception was thrown.
@changelog_1140_li
@changelog_1143_li
#JaQu: tables are now auto-created when running a query.
#JaQu: tables are now auto-created when running a query.
@changelog_1141_li
@changelog_1144_li
#The optimizer had problems with function tables (for example CSVREAD and FTL_SEARCH). A new system property h2.estimatedFunctionTableRows (default 1000) defines how many rows can be expected in the table.
#The optimizer had problems with function tables (for example CSVREAD and FTL_SEARCH). A new system property h2.estimatedFunctionTableRows (default 1000) defines how many rows can be expected in the table.
@changelog_1142_li
@changelog_1145_li
#The function SUM could overflow when using large values. It returns now a data type that is safe.
#The function SUM could overflow when using large values. It returns now a data type that is safe.
@changelog_1143_li
@changelog_1146_li
#The function AVG could overflow when using large values. Fixed.
#The function AVG could overflow when using large values. Fixed.
@changelog_1144_li
@changelog_1147_li
#The emergency reserve file has been removed. It didn't provide an appropriate solution for the problem. It is still possible for an application to detect and deal with the low disk space problem (deleting temporary files for example) using DatabaseEventListener.diskSpaceIsLow, but this method is now always called with stillAvailable=0.
#The emergency reserve file has been removed. It didn't provide an appropriate solution for the problem. It is still possible for an application to detect and deal with the low disk space problem (deleting temporary files for example) using DatabaseEventListener.diskSpaceIsLow, but this method is now always called with stillAvailable=0.
@changelog_1145_li
@changelog_1148_li
#Build: JAVA_HOME is now automatically detected on Mac OS X.
#Build: JAVA_HOME is now automatically detected on Mac OS X.
@changelog_1146_li
@changelog_1149_li
#Testing for local connections was very slow on some systems.
#Testing for local connections was very slow on some systems.
@changelog_1147_li
@changelog_1150_li
#The cache memory usage calculation is more conservative.
#The cache memory usage calculation is more conservative.
@changelog_1148_li
@changelog_1151_li
#Allocating space got slower and slower the larger the database.
#Allocating space got slower and slower the larger the database.
@changelog_1149_li
@changelog_1152_li
#ALTER TABLE ALTER COLUMN could throw the wrong exception in the last version (Table not found).
#ALTER TABLE ALTER COLUMN could throw the wrong exception in the last version (Table not found).
@changelog_1150_li
@changelog_1153_li
#Updatable result sets: the key columns can now be updated.
#Updatable result sets: the key columns can now be updated.
@changelog_1151_li
@changelog_1154_li
#The H2DatabaseProvider for ActiveObjects is now included in the tools section.
#The H2DatabaseProvider for ActiveObjects is now included in the tools section.
@changelog_1152_li
@changelog_1155_li
#The H2Platform for Oracle Toplink Essential has been improved a bit.
#The H2Platform for Oracle Toplink Essential has been improved a bit.
@changelog_1153_li
@changelog_1156_li
#The Windows service to start H2 didn't work in version 1.1.
#The Windows service to start H2 didn't work in version 1.1.
@changelog_1154_li
@changelog_1157_li
#File systems with a maximum file size (for example FAT) are now supported using the file prefix 'split:'. In this case the files are split in parts of 1 GB. Example URL: jdbc:h2:split:~/db/test. If you want to split into parts of 1 MB, use jdbc:h2:split:20:~/db/test (the part size is 1 << x, the default is 30 meaning 1 GB).
#File systems with a maximum file size (for example FAT) are now supported using the file prefix 'split:'. In this case the files are split in parts of 1 GB. Example URL: jdbc:h2:split:~/db/test. If you want to split into parts of 1 MB, use jdbc:h2:split:20:~/db/test (the part size is 1 << x, the default is 30 meaning 1 GB).
@changelog_1155_li
@changelog_1158_li
#The database now tries to detect if the classloader or virtual machine has almost shut down by checking if static final variables are set to null. This should help reduce exceptions when stopping the web application.
#The database now tries to detect if the classloader or virtual machine has almost shut down by checking if static final variables are set to null. This should help reduce exceptions when stopping the web application.
@changelog_1156_li
@changelog_1159_li
#Compatibility for MS SQL Server DATEDIFF(YYYY, .., ..)
#Compatibility for MS SQL Server DATEDIFF(YYYY, .., ..)
@changelog_1157_li
@changelog_1160_li
#ResultSet.getObject for CLOB or BLOB will return a java.sql.Clob / java.sql.Blob object instead of a java.io.Reader / java.io.InputStream as in version 1.0. This behavior can be changed using the system property h2.returnLobObjects (true by default for version 1.1).
#ResultSet.getObject for CLOB or BLOB will return a java.sql.Clob / java.sql.Blob object instead of a java.io.Reader / java.io.InputStream as in version 1.0. This behavior can be changed using the system property h2.returnLobObjects (true by default for version 1.1).
@changelog_1158_li
@changelog_1161_li
#The interface CloseListener has a new method 'remove' that is called when the trigger is dropped.
#The interface CloseListener has a new method 'remove' that is called when the trigger is dropped.
@changelog_1159_li
@changelog_1162_li
#Fulltext search: there was a memory leak when creating and dropping fulltext indexes in a loop.
#Fulltext search: there was a memory leak when creating and dropping fulltext indexes in a loop.
@changelog_1160_h2
@changelog_1163_h2
#Version 1.1.103 (2008-11-07)
#Version 1.1.103 (2008-11-07)
@changelog_1161_li
@changelog_1164_li
#Could not order by a formula when the formula was in the group by list but not in the select list.
#Could not order by a formula when the formula was in the group by list but not in the select list.
@changelog_1162_li
@changelog_1165_li
#Date values that match the daylight saving time end were not allowed in times zones were the daylight saving time ends at midnight, for years larger than 2037. Example: timezone Brasilia, date 2042-10-12. This is a problem of Java, however a workaround is implemented in H2 that solves most problems (except the problems of java.util.Date itself).
#Date values that match the daylight saving time end were not allowed in times zones were the daylight saving time ends at midnight, for years larger than 2037. Example: timezone Brasilia, date 2042-10-12. This is a problem of Java, however a workaround is implemented in H2 that solves most problems (except the problems of java.util.Date itself).
@changelog_1163_li
@changelog_1166_li
#ALTER TABLE used a lot of memory when using multi-version concurrency.
#ALTER TABLE used a lot of memory when using multi-version concurrency.
@changelog_1164_li
@changelog_1167_li
#Referential integrity for in-memory databases didn't work in some cases in version 1.1.102.
#Referential integrity for in-memory databases didn't work in some cases in version 1.1.102.
@changelog_1165_li
@changelog_1168_li
#New column INFORMATION_SCHEMA.COLUMNS.SEQUENCE_NAME to get the name of the sequence for auto-increment columns.
#New column INFORMATION_SCHEMA.COLUMNS.SEQUENCE_NAME to get the name of the sequence for auto-increment columns.
@changelog_1166_li
@changelog_1169_li
#Aliases for built-in data types (such as MEDIUMBLOB which is an alias for BLOB) can now be re-mapped to another data type using CREATE DOMAIN. However main built-in data types (such as INTEGER) can not be re-mapped.
#Aliases for built-in data types (such as MEDIUMBLOB which is an alias for BLOB) can now be re-mapped to another data type using CREATE DOMAIN. However main built-in data types (such as INTEGER) can not be re-mapped.
@changelog_1167_li
@changelog_1170_li
#The Japanese translation has been completed by Masahiro Ikemoto. Thanks a lot!
#The Japanese translation has been completed by Masahiro Ikemoto. Thanks a lot!
@changelog_1168_li
@changelog_1171_li
#Improved PostgreSQL compatibility for NEXTVAL and CURRVAL.
#Improved PostgreSQL compatibility for NEXTVAL and CURRVAL.
@changelog_1169_li
@changelog_1172_li
#Less heap memory is needed when multiple databases are open at the same time: The memory reserve (used to rollback after out of memory) is now global and no longer allocated for each database separately.
#Less heap memory is needed when multiple databases are open at the same time: The memory reserve (used to rollback after out of memory) is now global and no longer allocated for each database separately.
@changelog_1170_li
@changelog_1173_li
#New system property h2.browser to set the browser to use.
#New system property h2.browser to set the browser to use.
@changelog_1171_li
@changelog_1174_li
#To start the browser, java.awt.Desktop.browse is now used if available.
#To start the browser, java.awt.Desktop.browse is now used if available.
@changelog_1172_h2
@changelog_1175_h2
#Version 1.1.102 (2008-10-24)
#Version 1.1.102 (2008-10-24)
@changelog_1173_li
@changelog_1176_li
#The French translation of the H2 Console has been improved by Olivier Parent. Thanks a lot!
#The French translation of the H2 Console has been improved by Olivier Parent. Thanks a lot!
@changelog_1174_li
@changelog_1177_li
#There was a memory leak when creating and dropping tables and indexes in a loop (persistent database only).
#There was a memory leak when creating and dropping tables and indexes in a loop (persistent database only).
@changelog_1175_li
@changelog_1178_li
#SET LOG 2 was not effective if executed after opening the database.
#SET LOG 2 was not effective if executed after opening the database.
@changelog_1176_li
@changelog_1179_li
#Translating the H2 Console is now simpler.
#Translating the H2 Console is now simpler.
@changelog_1177_li
@changelog_1180_li
#Common exception (error code 23*) are no longer written to the .trace.db file by default.
#Common exception (error code 23*) are no longer written to the .trace.db file by default.
@changelog_1178_li
@changelog_1181_li
#In-memory databases don't write LOBs to files any longer.
#In-memory databases don't write LOBs to files any longer.
@changelog_1179_li
@changelog_1182_li
#Self referencing constraints didn't restrict deleting rows that reference itself if there is another row that references it.
#Self referencing constraints didn't restrict deleting rows that reference itself if there is another row that references it.
@changelog_1180_li
@changelog_1183_li
#ResultSetMetaData.getColumnName now returns the alias name except for columns.
#ResultSetMetaData.getColumnName now returns the alias name except for columns.
@changelog_1181_li
@changelog_1184_li
#Temporary files are now deleted when the database is closed, even if they were not garbage collected so far.
#Temporary files are now deleted when the database is closed, even if they were not garbage collected so far.
@changelog_1182_h2
@changelog_1185_h2
#Version 1.1.101 (2008-10-17)
#Version 1.1.101 (2008-10-17)
@changelog_1183_li
@changelog_1186_li
#Errors with code 42000 - 42999 are no longer written to the trace file by default.
#Errors with code 42000 - 42999 are no longer written to the trace file by default.
@changelog_1184_li
@changelog_1187_li
#Queries with more than 10 tables are now faster.
#Queries with more than 10 tables are now faster.
@changelog_1185_li
@changelog_1188_li
#Opening a connection with AUTO_SERVER=TRUE is now fast when the database is already open in another process (less than 0.01 seconds instead of 2 seconds).
#Opening a connection with AUTO_SERVER=TRUE is now fast when the database is already open in another process (less than 0.01 seconds instead of 2 seconds).
@changelog_1186_li
@changelog_1189_li
#IF [NOT] EXISTS is supported for named constraints in ALTER TABLE ... ADD/DROP CONSTRAINT.
#IF [NOT] EXISTS is supported for named constraints in ALTER TABLE ... ADD/DROP CONSTRAINT.
@changelog_1187_li
@changelog_1190_li
#The error messages have been translated to Spanish by Dario V. Fassi. Thanks a lot!
#The error messages have been translated to Spanish by Dario V. Fassi. Thanks a lot!
@changelog_1188_li
@changelog_1191_li
#Linked tables: the automatic connection sharing didn't work. Actually the system property h2.shareLinkedConnections was working in the opposite direction: it was disabled when set to true. Now it works as expected.
#Linked tables: the automatic connection sharing didn't work. Actually the system property h2.shareLinkedConnections was working in the opposite direction: it was disabled when set to true. Now it works as expected.
@changelog_1189_li
@changelog_1192_li
#Opening large database is now faster.
#Opening large database is now faster.
@changelog_1190_li
@changelog_1193_li
#New system property h2.socketConnectTimeout, the timeout in milliseconds to connect to a server. The default is 2000 (2 seconds).
#New system property h2.socketConnectTimeout, the timeout in milliseconds to connect to a server. The default is 2000 (2 seconds).
@changelog_1191_li
@changelog_1194_li
#The wrong parameters were bound to subqueries with parameters, specially when using IN(SELECT ...) and IN(...).
#The wrong parameters were bound to subqueries with parameters, specially when using IN(SELECT ...) and IN(...).
@changelog_1192_li
@changelog_1195_li
#Unset parameters were not detected when the query was re-compiled.
#Unset parameters were not detected when the query was re-compiled.
@changelog_1193_li
@changelog_1196_li
#New functions ISO_YEAR, ISO_WEEK, ISO_DAY_OF_WEEK. Thanks a lot to Robert Rathsack for implementing those!
#New functions ISO_YEAR, ISO_WEEK, ISO_DAY_OF_WEEK. Thanks a lot to Robert Rathsack for implementing those!
@changelog_1194_li
@changelog_1197_li
#The date functions DAYOFYEAR, DAYOFMONTH, DAYOFWEEK are now called DAY_OF_YEAR, DAY_OF_MONTH, DAY_OF_WEEK (the old names still work).
#The date functions DAYOFYEAR, DAYOFMONTH, DAYOFWEEK are now called DAY_OF_YEAR, DAY_OF_MONTH, DAY_OF_WEEK (the old names still work).
@changelog_1195_li
@changelog_1198_li
#An out of memory error while deleting or updating many rows could result in a strange exception.
#An out of memory error while deleting or updating many rows could result in a strange exception.
@changelog_1196_li
@changelog_1199_li
#Linked tables: compatibility with MS SQL Server has been improved.
#Linked tables: compatibility with MS SQL Server has been improved.
@changelog_1197_li
@changelog_1200_li
#Renaming tables that have foreign keys with cascade didn't work correctly.
#Renaming tables that have foreign keys with cascade didn't work correctly.
@changelog_1198_li
@changelog_1201_li
#The auto-reconnect feature didn't work when using the auto-server mode. Fixed.
#The auto-reconnect feature didn't work when using the auto-server mode. Fixed.
@changelog_1199_li
@changelog_1202_li
#Fulltext search: new method FT_DROP_INDEX.
#Fulltext search: new method FT_DROP_INDEX.
@changelog_1200_li
@changelog_1203_li
#The optimization to group using an index didn't work in some cases in version 1.1 (see also system property h2.optimizeGroupSorted).
#The optimization to group using an index didn't work in some cases in version 1.1 (see also system property h2.optimizeGroupSorted).
@changelog_1201_li
@changelog_1204_li
#OSGi meta data is included in the manifest file. An OSGi BundleActivator is included: it loads the database driver when starting the bundle, and unloads it when stopping the bundle.
#OSGi meta data is included in the manifest file. An OSGi BundleActivator is included: it loads the database driver when starting the bundle, and unloads it when stopping the bundle.
@changelog_1202_li
@changelog_1205_li
#The default value for MAX_MEMORY_UNDO is now 50000.
#The default value for MAX_MEMORY_UNDO is now 50000.
@changelog_1203_li
@changelog_1206_li
#For alias columns, ResultSetMetaData.getTableName() and getColumnName() now return the real table and column name in the default mode.
#For alias columns, ResultSetMetaData.getTableName() and getColumnName() now return the real table and column name in the default mode.
@changelog_1204_li
@changelog_1207_li
#In SQL scripts created with SCRIPT TO, schemas are now only created if they don't exist yet.
#In SQL scripts created with SCRIPT TO, schemas are now only created if they don't exist yet.
@changelog_1205_li
@changelog_1208_li
#After re-connecting to a database, the database event listener (if set) is informed about it.
#After re-connecting to a database, the database event listener (if set) is informed about it.
@changelog_1206_li
@changelog_1209_li
#Local temporary tables now support indexes. Thanks a lot to Matt Roy!
#Local temporary tables now support indexes. Thanks a lot to Matt Roy!
@changelog_1207_li
@changelog_1210_li
#RUNSCRIPT no longer uses a temporary file.
#RUNSCRIPT no longer uses a temporary file.
@changelog_1208_li
@changelog_1211_li
#New system table INFORMATION_SCHEMA.SESSION_STATE containing the SQL statements that make up the session state. The list currently contains variables (SET @..) and local temporary tables (without data).
#New system table INFORMATION_SCHEMA.SESSION_STATE containing the SQL statements that make up the session state. The list currently contains variables (SET @..) and local temporary tables (without data).
@changelog_1209_li
@changelog_1212_li
#After an automatic re-connect, part of the session state stays (the part that is stored in the SESSION_STATE table).
#After an automatic re-connect, part of the session state stays (the part that is stored in the SESSION_STATE table).
@changelog_1210_li
@changelog_1213_li
#The build didn't work if the directory temp didn't exist before.
#The build didn't work if the directory temp didn't exist before.
@changelog_1211_li
@changelog_1214_li
#New system property h2.maxReconnect (default 3) to limit the number of re-connects for the same SQL statement (this is usually only important for SHUTDOWN).
#New system property h2.maxReconnect (default 3) to limit the number of re-connects for the same SQL statement (this is usually only important for SHUTDOWN).
@changelog_1212_li
@changelog_1215_li
#WHERE .. IN (SELECT ...) could throw a NullPointerException.
#WHERE .. IN (SELECT ...) could throw a NullPointerException.
@changelog_1213_li
@changelog_1216_li
#Improved Glassfish / Toplink support in H2Platform thanks to Marcio Borges from Brazil. Thanks a lot!
#Improved Glassfish / Toplink support in H2Platform thanks to Marcio Borges from Brazil. Thanks a lot!
@changelog_1214_h2
@changelog_1217_h2
#Version 1.1.100 (2008-10-04)
#Version 1.1.100 (2008-10-04)
@changelog_1215_li
@changelog_1218_li
#In version 1.1, the following system properties are now enabled by default: h2.lobFilesInDirectories, h2.optimizeGroupSorted, h2.optimizeInJoin, h2.shareLinkedConnections
#In version 1.1, the following system properties are now enabled by default: h2.lobFilesInDirectories, h2.optimizeGroupSorted, h2.optimizeInJoin, h2.shareLinkedConnections
@changelog_1216_li
@changelog_1219_li
#The H2 Console tool now works with the JDBC-ODBC bridge.
#The H2 Console tool now works with the JDBC-ODBC bridge.
@changelog_1217_li
@changelog_1220_li
#The H2 Console tool now supports command line options to start things separately.
#The H2 Console tool now supports command line options to start things separately.
@changelog_1218_li
@changelog_1221_li
#Large objects did not work for in-memory databases in server mode in Linux.
#Large objects did not work for in-memory databases in server mode in Linux.
@changelog_1219_li
@changelog_1222_li
#Connections from a local address other than 'localhost' were not allowed if remote connections were disabled. This was always a problem, but only got visible in the last release because the server no longer connects to 'localhost' if networked.
#Connections from a local address other than 'localhost' were not allowed if remote connections were disabled. This was always a problem, but only got visible in the last release because the server no longer connects to 'localhost' if networked.
@changelog_1220_li
@changelog_1223_li
#The h2console.war can now be built using the Java build.
#The h2console.war can now be built using the Java build.
@changelog_1221_li
@changelog_1224_li
#By default, databases are shared in the same process. For read-only databases this causes unnecessary synchronization, but safes memory. If you want that each connection opens its own database, append ;OPEN_NEW=TRUE to the database URL.
#By default, databases are shared in the same process. For read-only databases this causes unnecessary synchronization, but safes memory. If you want that each connection opens its own database, append ;OPEN_NEW=TRUE to the database URL.
@changelog_1222_li
@changelog_1225_li
#New auto-reconnect feature will cause the JDBC driver to reconnect to the database if the connection is lost. To enable, append ;AUTO_RECONNECT=TRUE to the database URL. This is specially helpful when using AUTO_SERVER. AUTO_SERVER automatically uses auto-reconnect.
#New auto-reconnect feature will cause the JDBC driver to reconnect to the database if the connection is lost. To enable, append ;AUTO_RECONNECT=TRUE to the database URL. This is specially helpful when using AUTO_SERVER. AUTO_SERVER automatically uses auto-reconnect.
@changelog_1223_li
@changelog_1226_li
#CreateCluster: the property 'serverlist' is now called 'serverList'.
#CreateCluster: the property 'serverlist' is now called 'serverList'.
@changelog_1224_li
@changelog_1227_li
#The ConvertTraceFile tool could not parse some files because the trace mechanism did not encode prepared statement parameters.
#The ConvertTraceFile tool could not parse some files because the trace mechanism did not encode prepared statement parameters.
@changelog_1225_li
@changelog_1228_li
#Databases names can now be one character long (the minimum size used to be 2 characters).
#Databases names can now be one character long (the minimum size used to be 2 characters).
@changelog_1226_h2
@changelog_1229_h2
#Version 1.0.79 (2008-09-26)
#Version 1.0.79 (2008-09-26)
@changelog_1227_li
@changelog_1230_li
#Linked tables that point to the same database can now share the connection within the same database. Access to the same connection is serialized. To enable this feature, set the system property h2.shareLinkedConnections to true.
#Linked tables that point to the same database can now share the connection within the same database. Access to the same connection is serialized. To enable this feature, set the system property h2.shareLinkedConnections to true.
@changelog_1228_li
@changelog_1231_li
#Multiple processes can now access the same database without having to explicitly start the server. To do that, append ;AUTO_SERVER=TRUE to the database URL. In this case, the server is started automatically if the connection is in embedded mode, and the server mode is used if a server is running. If the process that opened the first connection is closed, the other client need to reconnect (there is no automatic re-connect so far). Remote connections are allowed, but only to this database.
#Multiple processes can now access the same database without having to explicitly start the server. To do that, append ;AUTO_SERVER=TRUE to the database URL. In this case, the server is started automatically if the connection is in embedded mode, and the server mode is used if a server is running. If the process that opened the first connection is closed, the other client need to reconnect (there is no automatic re-connect so far). Remote connections are allowed, but only to this database.
@changelog_1229_li
@changelog_1232_li
#The server tool now displays the correct IP address if networked.
#The server tool now displays the correct IP address if networked.
@changelog_1230_li
@changelog_1233_li
#Can now start a TCP server with port 0 (automatically select a port).
#Can now start a TCP server with port 0 (automatically select a port).
@changelog_1231_li
@changelog_1234_li
#Result sets with just a unique index can now be updated (previously a primary key was required).
#Result sets with just a unique index can now be updated (previously a primary key was required).
@changelog_1232_li
@changelog_1235_li
#LINKED TABLE: the schema name can now be set. When multiple tables exist in different schema, and the schema name is not set, an exception is thrown.
#LINKED TABLE: the schema name can now be set. When multiple tables exist in different schema, and the schema name is not set, an exception is thrown.
@changelog_1233_li
@changelog_1236_li
#LINKED TABLE: worked around a bug in Oracle with the CHAR data type.
#LINKED TABLE: worked around a bug in Oracle with the CHAR data type.
@changelog_1234_li
@changelog_1237_li
#Faster hash code calculation for large binary arrays.
#Faster hash code calculation for large binary arrays.
@changelog_1235_li
@changelog_1238_li
#Faster storage re-use algorithm thanks to Greg Dhuse from cleversafe.com.
#Faster storage re-use algorithm thanks to Greg Dhuse from cleversafe.com.
@changelog_1236_li
@changelog_1239_li
#The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
#The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
@changelog_1237_li
@changelog_1240_li
#The H2 Console now abbreviates large texts in results.
#The H2 Console now abbreviates large texts in results.
@changelog_1238_li
@changelog_1241_li
#Multiple UNION queries could not be used in derived tables.
#Multiple UNION queries could not be used in derived tables.
@changelog_1239_li
@changelog_1242_li
#Linked tables can now be read-only.
#Linked tables can now be read-only.
@changelog_1240_li
@changelog_1243_li
#Temporary linked tables are now supported.
#Temporary linked tables are now supported.
@changelog_1241_li
@changelog_1244_li
#It was possible to create tables in read-only databases.
#It was possible to create tables in read-only databases.
@changelog_1242_li
@changelog_1245_li
#SET SCHEMA_SEARCH_PATH is now documented.
#SET SCHEMA_SEARCH_PATH is now documented.
@changelog_1243_li
@changelog_1246_li
#SET SCHEMA did not work for views.
#SET SCHEMA did not work for views.
@changelog_1244_li
@changelog_1247_li
#Row level locking for MVCC is now enabled. The exception 'Concurrent update in table ...' is still thrown, but only after the lock timeout.
#Row level locking for MVCC is now enabled. The exception 'Concurrent update in table ...' is still thrown, but only after the lock timeout.
@changelog_1245_li
@changelog_1248_li
#The maximum log file size setting was ignored for large databases.
#The maximum log file size setting was ignored for large databases.
@changelog_1246_li
@changelog_1249_li
#Multi-Version Concurrency (MVCC) may no longer be used when using the multi-threaded kernel feature (MULTI_THREADED). An exception is thrown when trying to connect with both settings. Additional synchronization is required before those features can be used together.
#Multi-Version Concurrency (MVCC) may no longer be used when using the multi-threaded kernel feature (MULTI_THREADED). An exception is thrown when trying to connect with both settings. Additional synchronization is required before those features can be used together.
@changelog_1247_li
@changelog_1250_li
#The data type JAVA_OBJECT could not be used in updatable result sets.
#The data type JAVA_OBJECT could not be used in updatable result sets.
@changelog_1248_li
@changelog_1251_li
#The system property h2.optimizeInJoin did not work correctly.
#The system property h2.optimizeInJoin did not work correctly.
@changelog_1249_li
@changelog_1252_li
#Conditions such as ID=? AND ID>? were slow.
#Conditions such as ID=? AND ID>? were slow.
@changelog_1250_h2
@changelog_1253_h2
#Version 1.0.78 (2008-08-28)
#Version 1.0.78 (2008-08-28)
@changelog_1251_li
@changelog_1254_li
#The documentation no longer uses a frameset (except the Javadocs).
#The documentation no longer uses a frameset (except the Javadocs).
@changelog_1252_li
@changelog_1255_li
#When using DB_CLOSE_DELAY, sometimes a NullPointerException is thrown when the database is opened almost at the same time as it is closed automatically. Thanks a lot to Dmitry Pekar for finding this!
#When using DB_CLOSE_DELAY, sometimes a NullPointerException is thrown when the database is opened almost at the same time as it is closed automatically. Thanks a lot to Dmitry Pekar for finding this!
@changelog_1253_li
@changelog_1256_li
#Java methods with variable number of parameters can now be used (for Java 1.5 or newer).
#Java methods with variable number of parameters can now be used (for Java 1.5 or newer).
@changelog_1254_li
@changelog_1257_li
#The Japanese translation has been improved by Masahiro Ikemoto. Thanks a lot!
#The Japanese translation has been improved by Masahiro Ikemoto. Thanks a lot!
@changelog_1255_li
@changelog_1258_li
#The H2 Console replaced an empty user name with a single space.
#The H2 Console replaced an empty user name with a single space.
@changelog_1256_li
@changelog_1259_li
#The build target 'build jarSmall' now includes the embedded database.
#The build target 'build jarSmall' now includes the embedded database.
@changelog_1257_li
@changelog_1260_li
#JdbcDataSource now keeps the password in a char array where possible.
#JdbcDataSource now keeps the password in a char array where possible.
@changelog_1258_li
@changelog_1261_li
#ResultSet.absolute did not always work with large result sets.
#ResultSet.absolute did not always work with large result sets.
@changelog_1259_li
@changelog_1262_li
#Column aliases can now be used in GROUP BY and HAVING.
#Column aliases can now be used in GROUP BY and HAVING.
@changelog_1260_li
@changelog_1263_li
#Jason Brittain has contributed MySQL date functions. Thanks a lot! They are not in the h2.jar file currently, but in src/tools/org/h2/mode/FunctionsMySQL.java. To install, add this class to the classpath and call FunctionsMySQL.register(conn) in the Java code.
#Jason Brittain has contributed MySQL date functions. Thanks a lot! They are not in the h2.jar file currently, but in src/tools/org/h2/mode/FunctionsMySQL.java. To install, add this class to the classpath and call FunctionsMySQL.register(conn) in the Java code.
@changelog_1261_h2
@changelog_1264_h2
#Version 1.0.77 (2008-08-16)
#Version 1.0.77 (2008-08-16)
@changelog_1262_li
@changelog_1265_li
#JaQu is now using prepared statements and supports Date, Time, Timestamp.
#JaQu is now using prepared statements and supports Date, Time, Timestamp.
@changelog_1263_li
@changelog_1266_li
#When using remote in-memory databases, large LOB objects did not work.
#When using remote in-memory databases, large LOB objects did not work.
@changelog_1264_li
@changelog_1267_li
#Timestamp columns such as TIMESTAMP(6) were not compatible to other database.
#Timestamp columns such as TIMESTAMP(6) were not compatible to other database.
@changelog_1265_li
@changelog_1268_li
#Opening a large database was slow if there was a problem opening the previous time.
#Opening a large database was slow if there was a problem opening the previous time.
@changelog_1266_li
@changelog_1269_li
#NOT IN(SELECT ...) was incorrect if the subquery returns no rows.
#NOT IN(SELECT ...) was incorrect if the subquery returns no rows.
@changelog_1267_li
@changelog_1270_li
#CREATE TABLE AS SELECT did not work correctly in the multi-version concurrency mode.
#CREATE TABLE AS SELECT did not work correctly in the multi-version concurrency mode.
@changelog_1268_li
@changelog_1271_li
#Support a comma before closing a list, as in: create table test(id int,)
#Support a comma before closing a list, as in: create table test(id int,)
@changelog_1269_li
@changelog_1272_li
#MySQL compatibility: linked tables had lower case column names on some systems.
#MySQL compatibility: linked tables had lower case column names on some systems.
@changelog_1270_li
@changelog_1273_li
#DB2 compatibility: the DB2 fetch-first-clause is supported.
#DB2 compatibility: the DB2 fetch-first-clause is supported.
@changelog_1271_li
@changelog_1274_li
#Oracle compatibility: old style outer join syntax using (+) did work correctly sometimes.
#Oracle compatibility: old style outer join syntax using (+) did work correctly sometimes.
@changelog_1272_li
@changelog_1275_li
#ResultSet.setFetchSize is now supported.
#ResultSet.setFetchSize is now supported.
@changelog_1273_li
@changelog_1276_li
#It has been reported that when using Install4j on some Linux systems and enabling the 'pack200' option, the h2.jar becomes corrupted by the install process, causing application failure. A workaround is to add an empty file h2.jar.nopack next to the h2.jar file. The reason for this problem is not known.
#It has been reported that when using Install4j on some Linux systems and enabling the 'pack200' option, the h2.jar becomes corrupted by the install process, causing application failure. A workaround is to add an empty file h2.jar.nopack next to the h2.jar file. The reason for this problem is not known.
@changelog_1274_h2
@changelog_1277_h2
#Version 1.0.76 (2008-07-27)
#Version 1.0.76 (2008-07-27)
@changelog_1275_li
@changelog_1278_li
#The comment of a domain (user defined data type) is now used as the default column comment when creating a column with this domain.
#The comment of a domain (user defined data type) is now used as the default column comment when creating a column with this domain.
@changelog_1276_li
@changelog_1279_li
#Invalid database names are now detected and a better error message is thrown.
#Invalid database names are now detected and a better error message is thrown.
@changelog_1277_li
@changelog_1280_li
#ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
#ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
@changelog_1278_li
@changelog_1281_li
#Fixed the Oracle mode: Oracle allows multiple rows only where all columns of the unique index are NULL.
#Fixed the Oracle mode: Oracle allows multiple rows only where all columns of the unique index are NULL.
@changelog_1279_li
@changelog_1282_li
#There is a problem with Hibernate when using Boolean columns. A patch for Hibernate has been submitted at http://opensource.atlassian.com/projects/hibernate/browse/HHH-3401
#There is a problem with Hibernate when using Boolean columns. A patch for Hibernate has been submitted at http://opensource.atlassian.com/projects/hibernate/browse/HHH-3401
@changelog_1280_li
@changelog_1283_li
#ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
#ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
@changelog_1281_li
@changelog_1284_li
#H2 Console: The progress display when opening a database has been improved.
#H2 Console: The progress display when opening a database has been improved.
@changelog_1282_li
@changelog_1285_li
#The error message when the server doesn't start has been improved.
#The error message when the server doesn't start has been improved.
@changelog_1283_li
@changelog_1286_li
#Key values can now be changed in updatable result sets.
#Key values can now be changed in updatable result sets.
@changelog_1284_li
@changelog_1287_li
#Changes in updatable result sets are now visible even when resetting the result set.
#Changes in updatable result sets are now visible even when resetting the result set.
@changelog_1285_li
@changelog_1288_li
#Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
#Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
@changelog_1286_li
@changelog_1289_li
#The database file was growing after deleting many rows, and after large update operations.
#The database file was growing after deleting many rows, and after large update operations.
@changelog_1287_h2
@changelog_1290_h2
#Version 1.0.75 (2008-07-14)
#Version 1.0.75 (2008-07-14)
@changelog_1288_li
@changelog_1291_li
#Multi version concurrency (MVCC): when a row was updated or deleted, but this change was rolled back, the row was not visible by other sessions if no index was used to access it. Fixed.
#Multi version concurrency (MVCC): when a row was updated or deleted, but this change was rolled back, the row was not visible by other sessions if no index was used to access it. Fixed.
@changelog_1289_li
@changelog_1292_li
#Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
#Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
@changelog_1290_li
@changelog_1293_li
#The CSVREAD method did not process NULL correctly when using a whitespace field separator.
#The CSVREAD method did not process NULL correctly when using a whitespace field separator.
@changelog_1291_li
@changelog_1294_li
#Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
#Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
@changelog_1292_li
@changelog_1295_li
#Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
#Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
@changelog_1293_li
@changelog_1296_li
#When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
#When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
@changelog_1294_li
@changelog_1297_li
#Referential constraint checking improvement: now the constraint is only checked if the key column values change.
#Referential constraint checking improvement: now the constraint is only checked if the key column values change.
@changelog_1295_li
@changelog_1298_li
#Some database metadata calls returned the wrong data type for DATA_TYPE columns.
#Some database metadata calls returned the wrong data type for DATA_TYPE columns.
@changelog_1296_li
@changelog_1299_li
#The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
#The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
@changelog_1297_li
@changelog_1300_li
#The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
#The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
@changelog_1298_li
@changelog_1301_li
#The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
#The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
@changelog_1299_li
@changelog_1302_li
#Stopping a WebServer didn't always work. Fixed.
#Stopping a WebServer didn't always work. Fixed.
@changelog_1300_h2
@changelog_1303_h2
#Version 1.0.74 (2008-06-21)
#Version 1.0.74 (2008-06-21)
@changelog_1301_li
@changelog_1304_li
#Work on row level locking has been started (but there is nothing usable yet).
#Work on row level locking has been started (but there is nothing usable yet).
@changelog_1302_li
@changelog_1305_li
#JaQu (Java Query), a tool similar to LINQ (Language Integrated Query; from Microsoft) is now included under src/tools/org/h2/jaqu. A small sample application is included under src/test/org/h2/test/jaqu.
#JaQu (Java Query), a tool similar to LINQ (Language Integrated Query; from Microsoft) is now included under src/tools/org/h2/jaqu. A small sample application is included under src/test/org/h2/test/jaqu.
@changelog_1303_li
@changelog_1306_li
#The source code is now switched to Java 1.6 by default. To switch back to Java 1.4, run 'build compile'. The h2.jar file is still Java 1.4.
#The source code is now switched to Java 1.6 by default. To switch back to Java 1.4, run 'build compile'. The h2.jar file is still Java 1.4.
@changelog_1304_li
@changelog_1307_li
#The ChangePassword tool is now called ChangeFileEncryption.
#The ChangePassword tool is now called ChangeFileEncryption.
@changelog_1305_li
@changelog_1308_li
#It is no longer allowed to create columns with the data type NULL. Also, it is no longer allowed to convert a column to the data type NULL. This was possible before but caused data loss.
#It is no longer allowed to create columns with the data type NULL. Also, it is no longer allowed to convert a column to the data type NULL. This was possible before but caused data loss.
@changelog_1306_li
@changelog_1309_li
#When using computed columns or default values with a different data type than the column data type, a class cast exception could occur. Fixed.
#When using computed columns or default values with a different data type than the column data type, a class cast exception could occur. Fixed.
@changelog_1307_li
@changelog_1310_li
#Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
#Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
@changelog_1308_li
@changelog_1311_li
#RUNSCRIPT could throw a NullPointerException if the script name was an expression.
#RUNSCRIPT could throw a NullPointerException if the script name was an expression.
@changelog_1309_li
@changelog_1312_li
#Improved compatibility. New compatibility modes for Oracle and Derby. New compatibility flag uniqueIndexNullDistinct to only allow one row with 'NULL' in a unique index. This flag is enabled for Derby, Oracle, MSSQLServer, and HSQLDB.
#Improved compatibility. New compatibility modes for Oracle and Derby. New compatibility flag uniqueIndexNullDistinct to only allow one row with 'NULL' in a unique index. This flag is enabled for Derby, Oracle, MSSQLServer, and HSQLDB.
@changelog_1310_li
@changelog_1313_li
#Linked tables: To view the statements that are executed against the target table, set the trace level to 3.
#Linked tables: To view the statements that are executed against the target table, set the trace level to 3.
@changelog_1311_li
@changelog_1314_li
#RunScript tool: new options to show and check the results of queries.
#RunScript tool: new options to show and check the results of queries.
@changelog_1312_li
@changelog_1315_li
#Deadlocks are now detected. One transaction is rolled back automatically.
#Deadlocks are now detected. One transaction is rolled back automatically.
@changelog_1313_li
@changelog_1316_li
#The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
#The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
@changelog_1314_li
@changelog_1317_li
#Support for overloaded Java methods. A user defined function can now be bound to multiple Java methods, if the Java methods have the same name but a different number of parameters. Thanks to Gary Tong for providing a patch!
#Support for overloaded Java methods. A user defined function can now be bound to multiple Java methods, if the Java methods have the same name but a different number of parameters. Thanks to Gary Tong for providing a patch!
@download_1000_h1
@download_1000_h1
...
@@ -8038,163 +8047,163 @@ SQLコマンドがコマンドエリアに表示されます。
...
@@ -8038,163 +8047,163 @@ SQLコマンドがコマンドエリアに表示されます。
#Check state of H2 driver for DDLUtils: https://issues.apache.org/jira/browse/DDLUTILS-185
#Check state of H2 driver for DDLUtils: https://issues.apache.org/jira/browse/DDLUTILS-185
@roadmap_1213_li
@roadmap_1213_li
#Index usage for REGEXP LIKE.
#Support JMX: Create an MBean for each database and server (support JConsole). See http://thedevcloud.blogspot.com/2008/10/displaying-hsql-database-manager-in.html http://java.sun.com/j2se/1.5.0/docs/api/java/lang/management/ManagementFactory.html#getPlatformMBeanServer() http://java.sun.com/j2se/1.5.0/docs/guide/management/agent.html
@roadmap_1214_li
@roadmap_1214_li
#Compatibility: add a role DBA (like ADMIN).
#Index usage for REGEXP LIKE.
@roadmap_1215_li
@roadmap_1215_li
#Better support multiple processors for in-memory databases.
#Compatibility: add a role DBA (like ADMIN).
@roadmap_1216_li
@roadmap_1216_li
#Access rights: remember the owner of an object. COMMENT: allow owner of object to change it.
#Better support multiple processors for in-memory databases.
@roadmap_1217_li
@roadmap_1217_li
#Access rights: Finer grained access control (grant access for specific functions)
#Access rights: remember the owner of an object. COMMENT: allow owner of object to change it.
@roadmap_1218_li
@roadmap_1218_li
#Support N'text'
#Access rights: Finer grained access control (grant access for specific functions)
@roadmap_1219_li
@roadmap_1219_li
#Support SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger
#Support N'text'
@roadmap_1220_li
@roadmap_1220_li
#Set a connection read only (Connection.setReadOnly)
#Support SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger
@roadmap_1221_li
@roadmap_1221_li
#In MySQL mode, for AUTO_INCREMENT columns, don't set the primary key
#Set a connection read only (Connection.setReadOnly)
@roadmap_1222_li
@roadmap_1222_li
#Use JDK 1.4 file locking to create the lock file (but not yet by default); writing a system property to detect concurrent access from the same VM (different classloaders).
#In MySQL mode, for AUTO_INCREMENT columns, don't set the primary key
@roadmap_1223_li
@roadmap_1223_li
#Support compatibility for jdbc:hsqldb:res:
#Use JDK 1.4 file locking to create the lock file (but not yet by default); writing a system property to detect concurrent access from the same VM (different classloaders).
@roadmap_1224_li
@roadmap_1224_li
#Provide an Java SQL builder with standard and H2 syntax
#Support compatibility for jdbc:hsqldb:res:
@roadmap_1225_li
@roadmap_1225_li
#Trace: write OS, file system, JVM,... when opening the database
#Provide an Java SQL builder with standard and H2 syntax
@roadmap_1226_li
@roadmap_1226_li
#Support indexes for views (probably requires materialized views)
#Trace: write OS, file system, JVM,... when opening the database
@roadmap_1227_li
@roadmap_1227_li
#Document SET SEARCH_PATH, BEGIN, EXECUTE, parameters
#Support indexes for views (probably requires materialized views)
@roadmap_1228_li
@roadmap_1228_li
#Browser: use Desktop.isDesktopSupported and browse when using JDK 1.6
#Document SET SEARCH_PATH, BEGIN, EXECUTE, parameters
@roadmap_1229_li
@roadmap_1229_li
#Server: use one listener (detect if the request comes from an PG or TCP client)
#Browser: use Desktop.isDesktopSupported and browse when using JDK 1.6
@roadmap_1230_li
@roadmap_1230_li
#Store dates as 'local'. Existing files use GMT. Use escape syntax for compatibility.
#Server: use one listener (detect if the request comes from an PG or TCP client)
@roadmap_1231_li
@roadmap_1231_li
#Support data type INTERVAL
#Store dates as 'local'. Existing files use GMT. Use escape syntax for compatibility.
@roadmap_1232_li
@roadmap_1232_li
#Optimize SELECT MIN(ID), MAX(ID), COUNT(*) FROM TEST WHERE ID BETWEEN 100 AND 200
#Does the FTP server has problems with multithreading?
#Javadoc: document design patterns used
@roadmap_1259_li
@roadmap_1259_li
#Write an article about SQLInjection (h2\src\docsrc\html\images\SQLInjection.txt)
#Does the FTP server has problems with multithreading?
@roadmap_1260_li
@roadmap_1260_li
#Convert SQL-injection-2.txt to html document, include SQLInjection.java sample
#Write an article about SQLInjection (h2\src\docsrc\html\images\SQLInjection.txt)
@roadmap_1261_li
@roadmap_1261_li
#Improve LOB in directories performance
#Convert SQL-injection-2.txt to html document, include SQLInjection.java sample
@roadmap_1262_li
@roadmap_1262_li
#Web site design: http://www.igniterealtime.org/projects/openfire/index.jsp
#Improve LOB in directories performance
@roadmap_1263_li
@roadmap_1263_li
#HSQLDB compatibility: Openfire server uses: CREATE SCHEMA PUBLIC AUTHORIZATION DBA; CREATE USER SA PASSWORD ""; GRANT DBA TO SA; SET SCHEMA PUBLIC
#Web site design: http://www.igniterealtime.org/projects/openfire/index.jsp
@roadmap_1264_li
@roadmap_1264_li
#Web site: Rename Performance to Comparison [/Compatibility], move Comparison to Other Database Engines to Comparison, move Products that Work with H2 to Comparison, move Performance Tuning to Advanced Topics
#HSQLDB compatibility: Openfire server uses: CREATE SCHEMA PUBLIC AUTHORIZATION DBA; CREATE USER SA PASSWORD ""; GRANT DBA TO SA; SET SCHEMA PUBLIC
@roadmap_1265_li
@roadmap_1265_li
#Support JMX: Create an MBean for each database and server (support JConsole). See http://thedevcloud.blogspot.com/2008/10/displaying-hsql-database-manager-in.html
#Web site: Rename Performance to Comparison [/Compatibility], move Comparison to Other Database Engines to Comparison, move Products that Work with H2 to Comparison, move Performance Tuning to Advanced Topics
@roadmap_1266_li
@roadmap_1266_li
#Translation: use ?? in help.csv
#Translation: use ?? in help.csv
...
@@ -8565,13 +8574,16 @@ SQLコマンドがコマンドエリアに表示されます。
...
@@ -8565,13 +8574,16 @@ SQLコマンドがコマンドエリアに表示されます。
@roadmap_1388_li
@roadmap_1388_li
#Support INTERVAL data type (see Oracle and others).
#Support INTERVAL data type (see Oracle and others).
@roadmap_1389_h2
@roadmap_1389_li
#Combine Server and Console tool (only keep Server).
@roadmap_1390_h2
#Not Planned
#Not Planned
@roadmap_1390_li
@roadmap_1391_li
#HSQLDB (did) support this: select id i from test where i<0 (other databases don't). Supporting it may break compatibility.
#HSQLDB (did) support this: select id i from test where i<0 (other databases don't). Supporting it may break compatibility.
@roadmap_1391_li
@roadmap_1392_li
#String.intern (so that Strings can be compared with ==) will not be used because some VMs have problems when used extensively.
#String.intern (so that Strings can be compared with ==) will not be used because some VMs have problems when used extensively.
@@ -67,7 +67,7 @@ advanced_1065_p=The database allows multiple concurrent connections to the same
...
@@ -67,7 +67,7 @@ advanced_1065_p=The database allows multiple concurrent connections to the same
advanced_1066_h3=Lock Timeout
advanced_1066_h3=Lock Timeout
advanced_1067_p=If a connection cannot get a lock on an object, the connection waits for some amount of time (the lock timeout). During this time, hopefully the connection holding the lock commits and it is then possible to get the lock. If this is not possible because the other connection does not release the lock for some time, the unsuccessful connection will get a lock timeout exception. The lock timeout can be set individually for each connection.
advanced_1067_p=If a connection cannot get a lock on an object, the connection waits for some amount of time (the lock timeout). During this time, hopefully the connection holding the lock commits and it is then possible to get the lock. If this is not possible because the other connection does not release the lock for some time, the unsuccessful connection will get a lock timeout exception. The lock timeout can be set individually for each connection.
advanced_1068_h2=Multi-Version Concurrency Control (MVCC)
advanced_1068_h2=Multi-Version Concurrency Control (MVCC)
advanced_1069_p=The MVCC feature allows higher concurrency than using (table level or row level) locks. When using MVCC in this database, delete, insert and update operations will only issue a shared lock on the table. An exclusive lock is still used when adding or removing columns, when dropping the table, and when using SELECT ... FOR UPDATE. Connections only 'see' committed data, and own changes. That means, if connection A updates a row but doesn't commit this change yet, connection B will see the old value. Only when the change is committed, the new value is visible by other connections (read committed). If multiple connections concurrently try to update the same row, this database fails fast\:a concurrent update exception is thrown.
advanced_1069_p=The MVCC feature allows higher concurrency than using (table level or row level) locks. When using MVCC in this database, delete, insert and update operations will only issue a shared lock on the table. An exclusive lock is still used when adding or removing columns, when dropping the table, and when using SELECT ... FOR UPDATE. Connections only 'see' committed data, and own changes. That means, if connection A updates a row but doesn't commit this change yet, connection B will see the old value. Only when the change is committed, the new value is visible by other connections (read committed). If multiple connections concurrently try to update the same row, the database waits until it can apply the change, but at most until the lock timeout expires.
advanced_1070_p=To use the MVCC feature, append MVCC\=TRUE to the database URL\:
advanced_1070_p=To use the MVCC feature, append MVCC\=TRUE to the database URL\:
advanced_1071_p=MVCC can not be used at the same time as MULTI_THREADED. The MVCC feature is not fully tested yet.
advanced_1071_p=MVCC can not be used at the same time as MULTI_THREADED. The MVCC feature is not fully tested yet.
changelog_1002_li=The RunScript tool and SQL statement did not work with the compression method LZF.
changelog_1002_li=Server-less multi-connection mode\:more bugs are fixed.
changelog_1003_li=Fulltext search\:searching for NULL or an empty string threw an exception.
changelog_1003_li=The download page now included the SHA1 checksums.
changelog_1004_li=Lucene fulltext search\:FTL_DROP_ALL did not drop the triggers.
changelog_1004_li=Shell tool\:the file encoding workaround is now documented if you run java org.h2.tools.Shell -?.
changelog_1005_li=Backup\:if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
changelog_1005_li=The RunScript tool and SQL statement did not work with the compression method LZF.
changelog_1006_li=Data types\:LONG is now an alias for BIGINT.
changelog_1006_li=Fulltext search\:searching for NULL or an empty string threw an exception.
changelog_1007_li=More bugs in the server-less multi-connection mode have been fixed.
changelog_1007_li=Lucene fulltext search\:FTL_DROP_ALL did not drop the triggers.
changelog_1008_h2=Version 1.1.114 (2009-06-01)
changelog_1008_li=Backup\:if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
changelog_1009_li=ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
changelog_1009_li=Data types\:LONG is now an alias for BIGINT.
changelog_1010_li=Fulltext search\:Data is no longer deleted and re-inserted if the indexed columns didn't change.
changelog_1010_li=More bugs in the server-less multi-connection mode have been fixed.
changelog_1011_li=In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
changelog_1011_h2=Version 1.1.114 (2009-06-01)
changelog_1012_li=Microsoft Windows Vista\:when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
changelog_1012_li=ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
changelog_1013_li=The Recover tool did not always work when the database contains referential integrity constraints.
changelog_1013_li=Fulltext search\:Data is no longer deleted and re-inserted if the indexed columns didn't change.
changelog_1014_li=Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http\://retrotranslator.sourceforge.net/).
changelog_1014_li=In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
changelog_1015_h2=Version 1.1.113 (2009-05-21)
changelog_1015_li=Microsoft Windows Vista\:when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
changelog_1016_li=Shell tool\:the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
changelog_1016_li=The Recover tool did not always work when the database contains referential integrity constraints.
changelog_1017_li=JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http\://retrotranslator.sourceforge.net/).
changelog_1017_li=Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http\://retrotranslator.sourceforge.net/).
changelog_1018_li=When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG\=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG\=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
changelog_1018_h2=Version 1.1.113 (2009-05-21)
changelog_1019_li=Identifiers with a digit and then a dollar sign didn't work. Example\:A1$B.
changelog_1019_li=Shell tool\:the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
changelog_1020_li=MS SQL Server compatibility\:support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
changelog_1020_li=JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http\://retrotranslator.sourceforge.net/).
changelog_1021_li=Android\:Workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
changelog_1021_li=When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG\=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG\=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
changelog_1022_li=Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
changelog_1022_li=Identifiers with a digit and then a dollar sign didn't work. Example\:A1$B.
changelog_1023_li=Benchmark\:the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
changelog_1023_li=MS SQL Server compatibility\:support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
changelog_1024_li=H2 Console\:command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
changelog_1024_li=Android\:Workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
changelog_1025_li=Cache\:support for a second level soft-references cache. To enable it, append ;CACHE_TYPE\=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek\!
changelog_1025_li=Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
changelog_1026_h2=Version 1.1.112 (2009-05-01)
changelog_1026_li=Benchmark\:the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
changelog_1027_li=JdbcPreparedStatement.toString() could throw a NullPointerException.
changelog_1027_li=H2 Console\:command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
changelog_1028_li=Cache\:support for a second level soft-references cache. To enable it, append ;CACHE_TYPE\=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek\!
changelog_1029_li=Connection pool\:the default login timeout is now 5 minutes.
changelog_1029_h2=Version 1.1.112 (2009-05-01)
changelog_1030_li=After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
changelog_1030_li=JdbcPreparedStatement.toString() could throw a NullPointerException.
changelog_1031_li=More bugs in the server-less multi-connection mode have been fixed\:Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
changelog_1032_li=GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
changelog_1032_li=Connection pool\:the default login timeout is now 5 minutes.
changelog_1033_li=Improved error message when the .lock.db file modification time is in the future.
changelog_1033_li=After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
changelog_1034_li=The MERGE statement now returns 0 as the generated key if the row was updated.
changelog_1034_li=More bugs in the server-less multi-connection mode have been fixed\:Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
changelog_1035_li=Running code coverage is now automated.
changelog_1035_li=GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
changelog_1036_li=A file system implementation can now be registered using FileSystem.register.
changelog_1036_li=Improved error message when the .lock.db file modification time is in the future.
changelog_1037_li=The database file system is no longer included in the jar file, it moved to the test section.
changelog_1037_li=The MERGE statement now returns 0 as the generated key if the row was updated.
changelog_1038_h2=Version 1.1.111 (2009-04-10)
changelog_1038_li=Running code coverage is now automated.
changelog_1039_li=In-memory databases can now run inside the Google App Engine.
changelog_1039_li=A file system implementation can now be registered using FileSystem.register.
changelog_1040_li=Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
changelog_1040_li=The database file system is no longer included in the jar file, it moved to the test section.
changelog_1041_li=The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
changelog_1041_h2=Version 1.1.111 (2009-04-10)
changelog_1042_li=The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
changelog_1042_li=In-memory databases can now run inside the Google App Engine.
changelog_1043_li=Sometimes a StackOverflow occurred when checking for deadlock. See also http\://code.google.com/p/h2database/issues/detail?id\=61
changelog_1043_li=Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
changelog_1044_li=The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
changelog_1044_li=The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
changelog_1045_h2=Version 1.1.110 (2009-04-03)
changelog_1045_li=The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
changelog_1046_li=Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch\!
changelog_1046_li=Sometimes a StackOverflow occurred when checking for deadlock. See also http\://code.google.com/p/h2database/issues/detail?id\=61
changelog_1047_li=The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
changelog_1047_li=The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
changelog_1048_li=The data type of a SUBSTRING method was wrong.
changelog_1048_h2=Version 1.1.110 (2009-04-03)
changelog_1049_li=ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
changelog_1049_li=Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch\!
changelog_1050_li=H2 Console\:the browser system property now supports a list of arguments. Example\:java -Dh2.browser\="open,-a,Safari,%url"...
changelog_1050_li=The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
changelog_1051_li=Improved Javadoc navigation (similar to Scaladoc).
changelog_1051_li=The data type of a SUBSTRING method was wrong.
changelog_1052_li=H2 Console\:auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
changelog_1052_li=ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
changelog_1053_li=DISTINCT and GROUP BY on a CLOB column was broken.
changelog_1053_li=H2 Console\:the browser system property now supports a list of arguments. Example\:java -Dh2.browser\="open,-a,Safari,%url"...
changelog_1054_li=The FTP server moved to the tools section and is no longer included in the h2*.jar file.
changelog_1054_li=Improved Javadoc navigation (similar to Scaladoc).
changelog_1055_li=Improved error message for unsupported features\:now the message says what exactly is not supported.
changelog_1055_li=H2 Console\:auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
changelog_1056_li=Improved OSGi support.
changelog_1056_li=DISTINCT and GROUP BY on a CLOB column was broken.
changelog_1057_li=Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
changelog_1057_li=The FTP server moved to the tools section and is no longer included in the h2*.jar file.
changelog_1058_li=The API of the tools changed a bit (each tool now returns an exit code).
changelog_1058_li=Improved error message for unsupported features\:now the message says what exactly is not supported.
changelog_1059_li=Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
changelog_1059_li=Improved OSGi support.
changelog_1060_li=CREATE TABLE\:improved compatibility (support for UNIQUE NOT NULL).
changelog_1060_li=Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
changelog_1061_li=DatabaseMetaData.getSQLKeywords now returns the correct list.
changelog_1061_li=The API of the tools changed a bit (each tool now returns an exit code).
changelog_1062_li=Deterministic user defined functions did not work when the parameter was a column. Fixed.
changelog_1062_li=Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
changelog_1063_li=JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
changelog_1063_li=CREATE TABLE\:improved compatibility (support for UNIQUE NOT NULL).
changelog_1064_li=Creating a JdbcConnectionPool has been simplified a bit.
changelog_1064_li=DatabaseMetaData.getSQLKeywords now returns the correct list.
changelog_1065_li=The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
changelog_1065_li=Deterministic user defined functions did not work when the parameter was a column. Fixed.
changelog_1066_li=More bugs in the server-less multi-connection mode have been fixed\:If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
changelog_1066_li=JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
changelog_1067_li=Linked tables to SQLite database can now be created.
changelog_1067_li=Creating a JdbcConnectionPool has been simplified a bit.
changelog_1068_li=Nested IN(IN(...)) didn't work.
changelog_1068_li=The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
changelog_1069_li=NIO storage\:the nio\:prefix was using memory mapped files instead of FileChannel.
changelog_1069_li=More bugs in the server-less multi-connection mode have been fixed\:If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
changelog_1070_h2=Version 1.1.109 (2009-03-14)
changelog_1070_li=Linked tables to SQLite database can now be created.
changelog_1071_li=The optimization for IN(...) is now only used if comparing a column with an index.
changelog_1071_li=Nested IN(IN(...)) didn't work.
changelog_1072_li=User defined functions can now be deterministic (see CREATE ALIAS documentation).
changelog_1072_li=NIO storage\:the nio\:prefix was using memory mapped files instead of FileChannel.
changelog_1073_li=Multiple nested queries in the FROM clause with parameters did not always work.
changelog_1073_h2=Version 1.1.109 (2009-03-14)
changelog_1074_li=When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
changelog_1074_li=The optimization for IN(...) is now only used if comparing a column with an index.
changelog_1075_li=New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio\:or nioMapped\:as in jdbc\:h2\:nio\:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch\!
changelog_1075_li=User defined functions can now be deterministic (see CREATE ALIAS documentation).
changelog_1076_li=The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
changelog_1076_li=Multiple nested queries in the FROM clause with parameters did not always work.
changelog_1077_li=Could not use the same linked table multiple times in the same query.
changelog_1077_li=When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
changelog_1078_li=Bugs in the server-less multi-connection mode have been fixed.
changelog_1078_li=New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio\:or nioMapped\:as in jdbc\:h2\:nio\:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch\!
changelog_1079_li=Column names could not be named "UNIQUE" (with the quotes).
changelog_1079_li=The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
changelog_1080_li=New system function TRANSACTION_ID() to get the current transaction identifier for a session.
changelog_1080_li=Could not use the same linked table multiple times in the same query.
changelog_1081_h2=Version 1.1.108 (2009-02-28)
changelog_1081_li=Bugs in the server-less multi-connection mode have been fixed.
changelog_1082_li=When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
changelog_1082_li=Column names could not be named "UNIQUE" (with the quotes).
changelog_1083_li=JdbcConnectionPool\:it was possible to set a negative connection pool size.
changelog_1083_li=New system function TRANSACTION_ID() to get the current transaction identifier for a session.
changelog_1084_li=Fulltext search did not support table names with a backslash.
changelog_1084_h2=Version 1.1.108 (2009-02-28)
changelog_1085_li=The internal IntArray class did not work correctly when initialized with a zero length array.
changelog_1085_li=When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
changelog_1086_li=The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
changelog_1086_li=JdbcConnectionPool\:it was possible to set a negative connection pool size.
changelog_1087_li=DATEADD does no longer require that the argument is a timestamp.
changelog_1087_li=Fulltext search did not support table names with a backslash.
changelog_1088_li=The database file locking mechanism didn't work correctly on Mac OS.
changelog_1088_li=The internal IntArray class did not work correctly when initialized with a zero length array.
changelog_1089_li=Some built-in functions reported the wrong precision, scale, and display size.
changelog_1089_li=The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
changelog_1090_li=MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
changelog_1090_li=DATEADD does no longer require that the argument is a timestamp.
changelog_1091_li=Recovery did not work if there were more than 255 lobs stored as files.
changelog_1091_li=The database file locking mechanism didn't work correctly on Mac OS.
changelog_1092_li=New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK\=SERIALIZED;OPEN_NEW\=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
changelog_1092_li=Some built-in functions reported the wrong precision, scale, and display size.
changelog_1093_li=In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
changelog_1093_li=MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
changelog_1094_li=The WebServlet did not close the database when un-deploying the web application.
changelog_1094_li=Recovery did not work if there were more than 255 lobs stored as files.
changelog_1095_li=The exception message of failed INSERT or MERGE statements now includes all values and the row number.
changelog_1095_li=New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK\=SERIALIZED;OPEN_NEW\=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
changelog_1096_li=If opening a database failed with an out of memory exception, some files were not closed.
changelog_1096_li=In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
changelog_1097_li=Optimizer\:the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
changelog_1097_li=The WebServlet did not close the database when un-deploying the web application.
changelog_1098_li=Improved exception message when connecting to a just started server fails.
changelog_1098_li=The exception message of failed INSERT or MERGE statements now includes all values and the row number.
changelog_1099_li=Connection.isValid is a bit faster.
changelog_1099_li=If opening a database failed with an out of memory exception, some files were not closed.
changelog_1100_li=H2 Console\:The autocomplete feature has been improved a bit. It can now better parse conditions.
changelog_1100_li=Optimizer\:the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
changelog_1101_li=When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ\:Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
changelog_1101_li=Improved exception message when connecting to a just started server fails.
changelog_1102_h2=Version 1.1.107 (2009-01-24)
changelog_1102_li=Connection.isValid is a bit faster.
changelog_1103_li=Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
changelog_1103_li=H2 Console\:The autocomplete feature has been improved a bit. It can now better parse conditions.
changelog_1104_li=The MySQL compatibility extension fromUnixTime now used the English locale.
changelog_1104_li=When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ\:Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
changelog_1105_li=When using LOG\=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
changelog_1105_h2=Version 1.1.107 (2009-01-24)
changelog_1106_li=In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE\=TEXT) but support for this format was removed in version 1.1.105.
changelog_1106_li=Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
changelog_1107_li=Enabling the trace mechanism by creating a specially named file is no longer supported.
changelog_1107_li=The MySQL compatibility extension fromUnixTime now used the English locale.
changelog_1108_h2=Version 1.1.106 (2009-01-04)
changelog_1108_li=When using LOG\=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
changelog_1109_li=Statement.setQueryTimeout did not work correctly for some statements.
changelog_1109_li=In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE\=TEXT) but support for this format was removed in version 1.1.105.
changelog_1110_li=CREATE DOMAIN\:Built-in data types can now only be changed if no tables exist.
changelog_1110_li=Enabling the trace mechanism by creating a specially named file is no longer supported.
changelog_1111_li=Linked tables\:a workaround for Oracle DATE columns has been implemented.
changelog_1111_h2=Version 1.1.106 (2009-01-04)
changelog_1112_li=DatabaseMetaData.getPrimaryKeys\:The column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
changelog_1112_li=Statement.setQueryTimeout did not work correctly for some statements.
changelog_1113_li=Using IN(..) inside a IN(SELECT..) did not always work.
changelog_1113_li=CREATE DOMAIN\:Built-in data types can now only be changed if no tables exist.
changelog_1114_li=Views with IN(..) that used a view itself did not work.
changelog_1114_li=Linked tables\:a workaround for Oracle DATE columns has been implemented.
changelog_1115_li=Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
changelog_1115_li=DatabaseMetaData.getPrimaryKeys\:The column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
changelog_1116_li=The license change a bit\:so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
changelog_1116_li=Using IN(..) inside a IN(SELECT..) did not always work.
changelog_1117_li=Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem\!
changelog_1117_li=Views with IN(..) that used a view itself did not work.
changelog_1118_li=When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database\:Lock file modified in the future').
changelog_1118_li=Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
changelog_1119_h2=Version 1.1.105 (2008-12-19)
changelog_1119_li=The license change a bit\:so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
changelog_1120_li=The setting STORAGE\=TEXT is no longer supported.
changelog_1120_li=Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem\!
changelog_1121_li=Deleting a database using the tool DeleteDbFiles deleted LOB files of other databases in the same directory.
changelog_1121_li=When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database\:Lock file modified in the future').
changelog_1122_li=When used in a subquery, LIKE and IN(..) did not work correctly sometimes.
changelog_1122_h2=Version 1.1.105 (2008-12-19)
changelog_1123_li=The fulltext search documentation has been improved.
changelog_1123_li=The setting STORAGE\=TEXT is no longer supported.
changelog_1124_li=ARRAY_GET returned the wrong data type (ARRAY). Now it returns VARCHAR.
changelog_1124_li=Deleting a database using the tool DeleteDbFiles deleted LOB files of other databases in the same directory.
changelog_1125_li=Natural join\:the joined columns are not repeated any more when using SELECT *.
changelog_1125_li=When used in a subquery, LIKE and IN(..) did not work correctly sometimes.
changelog_1126_li=User defined aggregate functions\:the method getType expected internal data types instead of SQL types.
changelog_1126_li=The fulltext search documentation has been improved.
changelog_1127_li=User defined aggregate functions did not work if there was no group by expression.
changelog_1127_li=ARRAY_GET returned the wrong data type (ARRAY). Now it returns VARCHAR.
changelog_1128_li=MySQL compatibility\:support for \:\=assignment as in @sum\:\=@sum+x
changelog_1128_li=Natural join\:the joined columns are not repeated any more when using SELECT *.
changelog_1129_li=INSERT INTO TEST(SELECT * FROM TEST) is now supported.
changelog_1129_li=User defined aggregate functions\:the method getType expected internal data types instead of SQL types.
changelog_1130_li=Each session threw an invisible exception when garbage collected.
changelog_1130_li=User defined aggregate functions did not work if there was no group by expression.
changelog_1131_li=Foreign key constraints that refer to a quoted column did not work.
changelog_1131_li=MySQL compatibility\:support for \:\=assignment as in @sum\:\=@sum+x
changelog_1132_li=New meta data column INFORMATION_SCHEMA.TABLES.LAST_MODIFICATION to get the table modification counter.
changelog_1132_li=INSERT INTO TEST(SELECT * FROM TEST) is now supported.
changelog_1133_li=Shell\:line comments didn't work correctly.
changelog_1133_li=Each session threw an invisible exception when garbage collected.
changelog_1134_li=H2 Console\:Columns are now listed for up to 500 tables instead of 100.
changelog_1134_li=Foreign key constraints that refer to a quoted column did not work.
changelog_1135_li=H2 Console\:Cmd+Enter executes the current statement, Alt+Space for autocomplete.
changelog_1135_li=New meta data column INFORMATION_SCHEMA.TABLES.LAST_MODIFICATION to get the table modification counter.
changelog_1136_li=JaQu\:the maximum length of a column can now be defined using maxLength. For an example, see Product.java (maxLength(category, 255)).
changelog_1136_li=Shell\:line comments didn't work correctly.
changelog_1137_li=R&\\\#305;dvan A&\\\#287;ar has completed the Turkish translation of the H2 Console. Thanks a lot\!
changelog_1137_li=H2 Console\:Columns are now listed for up to 500 tables instead of 100.
changelog_1138_h2=Version 1.1.104 (2008-11-28)
changelog_1138_li=H2 Console\:Cmd+Enter executes the current statement, Alt+Space for autocomplete.
changelog_1139_li=If a query that was used like a table contained group by and was ordered by an expression that is not in the column list, an exception was thrown.
changelog_1139_li=JaQu\:the maximum length of a column can now be defined using maxLength. For an example, see Product.java (maxLength(category, 255)).
changelog_1140_li=JaQu\:tables are now auto-created when running a query.
changelog_1140_li=R&\\\#305;dvan A&\\\#287;ar has completed the Turkish translation of the H2 Console. Thanks a lot\!
changelog_1141_li=The optimizer had problems with function tables (for example CSVREAD and FTL_SEARCH). A new system property h2.estimatedFunctionTableRows (default 1000) defines how many rows can be expected in the table.
changelog_1141_h2=Version 1.1.104 (2008-11-28)
changelog_1142_li=The function SUM could overflow when using large values. It returns now a data type that is safe.
changelog_1142_li=If a query that was used like a table contained group by and was ordered by an expression that is not in the column list, an exception was thrown.
changelog_1143_li=The function AVG could overflow when using large values. Fixed.
changelog_1143_li=JaQu\:tables are now auto-created when running a query.
changelog_1144_li=The emergency reserve file has been removed. It didn't provide an appropriate solution for the problem. It is still possible for an application to detect and deal with the low disk space problem (deleting temporary files for example) using DatabaseEventListener.diskSpaceIsLow, but this method is now always called with stillAvailable\=0.
changelog_1144_li=The optimizer had problems with function tables (for example CSVREAD and FTL_SEARCH). A new system property h2.estimatedFunctionTableRows (default 1000) defines how many rows can be expected in the table.
changelog_1145_li=Build\:JAVA_HOME is now automatically detected on Mac OS X.
changelog_1145_li=The function SUM could overflow when using large values. It returns now a data type that is safe.
changelog_1146_li=Testing for local connections was very slow on some systems.
changelog_1146_li=The function AVG could overflow when using large values. Fixed.
changelog_1147_li=The cache memory usage calculation is more conservative.
changelog_1147_li=The emergency reserve file has been removed. It didn't provide an appropriate solution for the problem. It is still possible for an application to detect and deal with the low disk space problem (deleting temporary files for example) using DatabaseEventListener.diskSpaceIsLow, but this method is now always called with stillAvailable\=0.
changelog_1148_li=Allocating space got slower and slower the larger the database.
changelog_1148_li=Build\:JAVA_HOME is now automatically detected on Mac OS X.
changelog_1149_li=ALTER TABLE ALTER COLUMN could throw the wrong exception in the last version (Table not found).
changelog_1149_li=Testing for local connections was very slow on some systems.
changelog_1150_li=Updatable result sets\:the key columns can now be updated.
changelog_1150_li=The cache memory usage calculation is more conservative.
changelog_1151_li=The H2DatabaseProvider for ActiveObjects is now included in the tools section.
changelog_1151_li=Allocating space got slower and slower the larger the database.
changelog_1152_li=The H2Platform for Oracle Toplink Essential has been improved a bit.
changelog_1152_li=ALTER TABLE ALTER COLUMN could throw the wrong exception in the last version (Table not found).
changelog_1153_li=The Windows service to start H2 didn't work in version 1.1.
changelog_1153_li=Updatable result sets\:the key columns can now be updated.
changelog_1154_li=File systems with a maximum file size (for example FAT) are now supported using the file prefix 'split\:'. In this case the files are split in parts of 1 GB. Example URL\:jdbc\:h2\:split\:~/db/test. If you want to split into parts of 1 MB, use jdbc\:h2\:split\:20\:~/db/test (the part size is 1 << x, the default is 30 meaning 1 GB).
changelog_1154_li=The H2DatabaseProvider for ActiveObjects is now included in the tools section.
changelog_1155_li=The database now tries to detect if the classloader or virtual machine has almost shut down by checking if static final variables are set to null. This should help reduce exceptions when stopping the web application.
changelog_1155_li=The H2Platform for Oracle Toplink Essential has been improved a bit.
changelog_1156_li=Compatibility for MS SQL Server DATEDIFF(YYYY, .., ..)
changelog_1156_li=The Windows service to start H2 didn't work in version 1.1.
changelog_1157_li=ResultSet.getObject for CLOB or BLOB will return a java.sql.Clob / java.sql.Blob object instead of a java.io.Reader / java.io.InputStream as in version 1.0. This behavior can be changed using the system property h2.returnLobObjects (true by default for version 1.1).
changelog_1157_li=File systems with a maximum file size (for example FAT) are now supported using the file prefix 'split\:'. In this case the files are split in parts of 1 GB. Example URL\:jdbc\:h2\:split\:~/db/test. If you want to split into parts of 1 MB, use jdbc\:h2\:split\:20\:~/db/test (the part size is 1 << x, the default is 30 meaning 1 GB).
changelog_1158_li=The interface CloseListener has a new method 'remove' that is called when the trigger is dropped.
changelog_1158_li=The database now tries to detect if the classloader or virtual machine has almost shut down by checking if static final variables are set to null. This should help reduce exceptions when stopping the web application.
changelog_1159_li=Fulltext search\:there was a memory leak when creating and dropping fulltext indexes in a loop.
changelog_1159_li=Compatibility for MS SQL Server DATEDIFF(YYYY, .., ..)
changelog_1160_h2=Version 1.1.103 (2008-11-07)
changelog_1160_li=ResultSet.getObject for CLOB or BLOB will return a java.sql.Clob / java.sql.Blob object instead of a java.io.Reader / java.io.InputStream as in version 1.0. This behavior can be changed using the system property h2.returnLobObjects (true by default for version 1.1).
changelog_1161_li=Could not order by a formula when the formula was in the group by list but not in the select list.
changelog_1161_li=The interface CloseListener has a new method 'remove' that is called when the trigger is dropped.
changelog_1162_li=Date values that match the daylight saving time end were not allowed in times zones were the daylight saving time ends at midnight, for years larger than 2037. Example\:timezone Brasilia, date 2042-10-12. This is a problem of Java, however a workaround is implemented in H2 that solves most problems (except the problems of java.util.Date itself).
changelog_1162_li=Fulltext search\:there was a memory leak when creating and dropping fulltext indexes in a loop.
changelog_1163_li=ALTER TABLE used a lot of memory when using multi-version concurrency.
changelog_1163_h2=Version 1.1.103 (2008-11-07)
changelog_1164_li=Referential integrity for in-memory databases didn't work in some cases in version 1.1.102.
changelog_1164_li=Could not order by a formula when the formula was in the group by list but not in the select list.
changelog_1165_li=New column INFORMATION_SCHEMA.COLUMNS.SEQUENCE_NAME to get the name of the sequence for auto-increment columns.
changelog_1165_li=Date values that match the daylight saving time end were not allowed in times zones were the daylight saving time ends at midnight, for years larger than 2037. Example\:timezone Brasilia, date 2042-10-12. This is a problem of Java, however a workaround is implemented in H2 that solves most problems (except the problems of java.util.Date itself).
changelog_1166_li=Aliases for built-in data types (such as MEDIUMBLOB which is an alias for BLOB) can now be re-mapped to another data type using CREATE DOMAIN. However main built-in data types (such as INTEGER) can not be re-mapped.
changelog_1166_li=ALTER TABLE used a lot of memory when using multi-version concurrency.
changelog_1167_li=The Japanese translation has been completed by Masahiro Ikemoto. Thanks a lot\!
changelog_1167_li=Referential integrity for in-memory databases didn't work in some cases in version 1.1.102.
changelog_1168_li=Improved PostgreSQL compatibility for NEXTVAL and CURRVAL.
changelog_1168_li=New column INFORMATION_SCHEMA.COLUMNS.SEQUENCE_NAME to get the name of the sequence for auto-increment columns.
changelog_1169_li=Less heap memory is needed when multiple databases are open at the same time\:The memory reserve (used to rollback after out of memory) is now global and no longer allocated for each database separately.
changelog_1169_li=Aliases for built-in data types (such as MEDIUMBLOB which is an alias for BLOB) can now be re-mapped to another data type using CREATE DOMAIN. However main built-in data types (such as INTEGER) can not be re-mapped.
changelog_1170_li=New system property h2.browser to set the browser to use.
changelog_1170_li=The Japanese translation has been completed by Masahiro Ikemoto. Thanks a lot\!
changelog_1171_li=To start the browser, java.awt.Desktop.browse is now used if available.
changelog_1171_li=Improved PostgreSQL compatibility for NEXTVAL and CURRVAL.
changelog_1172_h2=Version 1.1.102 (2008-10-24)
changelog_1172_li=Less heap memory is needed when multiple databases are open at the same time\:The memory reserve (used to rollback after out of memory) is now global and no longer allocated for each database separately.
changelog_1173_li=The French translation of the H2 Console has been improved by Olivier Parent. Thanks a lot\!
changelog_1173_li=New system property h2.browser to set the browser to use.
changelog_1174_li=There was a memory leak when creating and dropping tables and indexes in a loop (persistent database only).
changelog_1174_li=To start the browser, java.awt.Desktop.browse is now used if available.
changelog_1175_li=SET LOG 2 was not effective if executed after opening the database.
changelog_1175_h2=Version 1.1.102 (2008-10-24)
changelog_1176_li=Translating the H2 Console is now simpler.
changelog_1176_li=The French translation of the H2 Console has been improved by Olivier Parent. Thanks a lot\!
changelog_1177_li=Common exception (error code 23*) are no longer written to the .trace.db file by default.
changelog_1177_li=There was a memory leak when creating and dropping tables and indexes in a loop (persistent database only).
changelog_1178_li=In-memory databases don't write LOBs to files any longer.
changelog_1178_li=SET LOG 2 was not effective if executed after opening the database.
changelog_1179_li=Self referencing constraints didn't restrict deleting rows that reference itself if there is another row that references it.
changelog_1179_li=Translating the H2 Console is now simpler.
changelog_1180_li=ResultSetMetaData.getColumnName now returns the alias name except for columns.
changelog_1180_li=Common exception (error code 23*) are no longer written to the .trace.db file by default.
changelog_1181_li=Temporary files are now deleted when the database is closed, even if they were not garbage collected so far.
changelog_1181_li=In-memory databases don't write LOBs to files any longer.
changelog_1182_h2=Version 1.1.101 (2008-10-17)
changelog_1182_li=Self referencing constraints didn't restrict deleting rows that reference itself if there is another row that references it.
changelog_1183_li=Errors with code 42000 - 42999 are no longer written to the trace file by default.
changelog_1183_li=ResultSetMetaData.getColumnName now returns the alias name except for columns.
changelog_1184_li=Queries with more than 10 tables are now faster.
changelog_1184_li=Temporary files are now deleted when the database is closed, even if they were not garbage collected so far.
changelog_1185_li=Opening a connection with AUTO_SERVER\=TRUE is now fast when the database is already open in another process (less than 0.01 seconds instead of 2 seconds).
changelog_1185_h2=Version 1.1.101 (2008-10-17)
changelog_1186_li=IF [NOT] EXISTS is supported for named constraints in ALTER TABLE ... ADD/DROP CONSTRAINT.
changelog_1186_li=Errors with code 42000 - 42999 are no longer written to the trace file by default.
changelog_1187_li=The error messages have been translated to Spanish by Dario V. Fassi. Thanks a lot\!
changelog_1187_li=Queries with more than 10 tables are now faster.
changelog_1188_li=Linked tables\:the automatic connection sharing didn't work. Actually the system property h2.shareLinkedConnections was working in the opposite direction\:it was disabled when set to true. Now it works as expected.
changelog_1188_li=Opening a connection with AUTO_SERVER\=TRUE is now fast when the database is already open in another process (less than 0.01 seconds instead of 2 seconds).
changelog_1189_li=Opening large database is now faster.
changelog_1189_li=IF [NOT] EXISTS is supported for named constraints in ALTER TABLE ... ADD/DROP CONSTRAINT.
changelog_1190_li=New system property h2.socketConnectTimeout, the timeout in milliseconds to connect to a server. The default is 2000 (2 seconds).
changelog_1190_li=The error messages have been translated to Spanish by Dario V. Fassi. Thanks a lot\!
changelog_1191_li=The wrong parameters were bound to subqueries with parameters, specially when using IN(SELECT ...) and IN(...).
changelog_1191_li=Linked tables\:the automatic connection sharing didn't work. Actually the system property h2.shareLinkedConnections was working in the opposite direction\:it was disabled when set to true. Now it works as expected.
changelog_1192_li=Unset parameters were not detected when the query was re-compiled.
changelog_1192_li=Opening large database is now faster.
changelog_1193_li=New functions ISO_YEAR, ISO_WEEK, ISO_DAY_OF_WEEK. Thanks a lot to Robert Rathsack for implementing those\!
changelog_1193_li=New system property h2.socketConnectTimeout, the timeout in milliseconds to connect to a server. The default is 2000 (2 seconds).
changelog_1194_li=The date functions DAYOFYEAR, DAYOFMONTH, DAYOFWEEK are now called DAY_OF_YEAR, DAY_OF_MONTH, DAY_OF_WEEK (the old names still work).
changelog_1194_li=The wrong parameters were bound to subqueries with parameters, specially when using IN(SELECT ...) and IN(...).
changelog_1195_li=An out of memory error while deleting or updating many rows could result in a strange exception.
changelog_1195_li=Unset parameters were not detected when the query was re-compiled.
changelog_1196_li=Linked tables\:compatibility with MS SQL Server has been improved.
changelog_1196_li=New functions ISO_YEAR, ISO_WEEK, ISO_DAY_OF_WEEK. Thanks a lot to Robert Rathsack for implementing those\!
changelog_1197_li=Renaming tables that have foreign keys with cascade didn't work correctly.
changelog_1197_li=The date functions DAYOFYEAR, DAYOFMONTH, DAYOFWEEK are now called DAY_OF_YEAR, DAY_OF_MONTH, DAY_OF_WEEK (the old names still work).
changelog_1198_li=The auto-reconnect feature didn't work when using the auto-server mode. Fixed.
changelog_1198_li=An out of memory error while deleting or updating many rows could result in a strange exception.
changelog_1199_li=Linked tables\:compatibility with MS SQL Server has been improved.
changelog_1200_li=The optimization to group using an index didn't work in some cases in version 1.1 (see also system property h2.optimizeGroupSorted).
changelog_1200_li=Renaming tables that have foreign keys with cascade didn't work correctly.
changelog_1201_li=OSGi meta data is included in the manifest file. An OSGi BundleActivator is included\:it loads the database driver when starting the bundle, and unloads it when stopping the bundle.
changelog_1201_li=The auto-reconnect feature didn't work when using the auto-server mode. Fixed.
changelog_1202_li=The default value for MAX_MEMORY_UNDO is now 50000.
changelog_1203_li=For alias columns, ResultSetMetaData.getTableName() and getColumnName() now return the real table and column name in the default mode.
changelog_1203_li=The optimization to group using an index didn't work in some cases in version 1.1 (see also system property h2.optimizeGroupSorted).
changelog_1204_li=In SQL scripts created with SCRIPT TO, schemas are now only created if they don't exist yet.
changelog_1204_li=OSGi meta data is included in the manifest file. An OSGi BundleActivator is included\:it loads the database driver when starting the bundle, and unloads it when stopping the bundle.
changelog_1205_li=After re-connecting to a database, the database event listener (if set) is informed about it.
changelog_1205_li=The default value for MAX_MEMORY_UNDO is now 50000.
changelog_1206_li=Local temporary tables now support indexes. Thanks a lot to Matt Roy\!
changelog_1206_li=For alias columns, ResultSetMetaData.getTableName() and getColumnName() now return the real table and column name in the default mode.
changelog_1207_li=RUNSCRIPT no longer uses a temporary file.
changelog_1207_li=In SQL scripts created with SCRIPT TO, schemas are now only created if they don't exist yet.
changelog_1208_li=New system table INFORMATION_SCHEMA.SESSION_STATE containing the SQL statements that make up the session state. The list currently contains variables (SET @..) and local temporary tables (without data).
changelog_1208_li=After re-connecting to a database, the database event listener (if set) is informed about it.
changelog_1209_li=After an automatic re-connect, part of the session state stays (the part that is stored in the SESSION_STATE table).
changelog_1209_li=Local temporary tables now support indexes. Thanks a lot to Matt Roy\!
changelog_1210_li=The build didn't work if the directory temp didn't exist before.
changelog_1210_li=RUNSCRIPT no longer uses a temporary file.
changelog_1211_li=New system property h2.maxReconnect (default 3) to limit the number of re-connects for the same SQL statement (this is usually only important for SHUTDOWN).
changelog_1211_li=New system table INFORMATION_SCHEMA.SESSION_STATE containing the SQL statements that make up the session state. The list currently contains variables (SET @..) and local temporary tables (without data).
changelog_1212_li=WHERE .. IN (SELECT ...) could throw a NullPointerException.
changelog_1212_li=After an automatic re-connect, part of the session state stays (the part that is stored in the SESSION_STATE table).
changelog_1213_li=Improved Glassfish / Toplink support in H2Platform thanks to Marcio Borges from Brazil. Thanks a lot\!
changelog_1213_li=The build didn't work if the directory temp didn't exist before.
changelog_1214_h2=Version 1.1.100 (2008-10-04)
changelog_1214_li=New system property h2.maxReconnect (default 3) to limit the number of re-connects for the same SQL statement (this is usually only important for SHUTDOWN).
changelog_1215_li=In version 1.1, the following system properties are now enabled by default\:h2.lobFilesInDirectories, h2.optimizeGroupSorted, h2.optimizeInJoin, h2.shareLinkedConnections
changelog_1215_li=WHERE .. IN (SELECT ...) could throw a NullPointerException.
changelog_1216_li=The H2 Console tool now works with the JDBC-ODBC bridge.
changelog_1216_li=Improved Glassfish / Toplink support in H2Platform thanks to Marcio Borges from Brazil. Thanks a lot\!
changelog_1217_li=The H2 Console tool now supports command line options to start things separately.
changelog_1217_h2=Version 1.1.100 (2008-10-04)
changelog_1218_li=Large objects did not work for in-memory databases in server mode in Linux.
changelog_1218_li=In version 1.1, the following system properties are now enabled by default\:h2.lobFilesInDirectories, h2.optimizeGroupSorted, h2.optimizeInJoin, h2.shareLinkedConnections
changelog_1219_li=Connections from a local address other than 'localhost' were not allowed if remote connections were disabled. This was always a problem, but only got visible in the last release because the server no longer connects to 'localhost' if networked.
changelog_1219_li=The H2 Console tool now works with the JDBC-ODBC bridge.
changelog_1220_li=The h2console.war can now be built using the Java build.
changelog_1220_li=The H2 Console tool now supports command line options to start things separately.
changelog_1221_li=By default, databases are shared in the same process. For read-only databases this causes unnecessary synchronization, but safes memory. If you want that each connection opens its own database, append ;OPEN_NEW\=TRUE to the database URL.
changelog_1221_li=Large objects did not work for in-memory databases in server mode in Linux.
changelog_1222_li=New auto-reconnect feature will cause the JDBC driver to reconnect to the database if the connection is lost. To enable, append ;AUTO_RECONNECT\=TRUE to the database URL. This is specially helpful when using AUTO_SERVER. AUTO_SERVER automatically uses auto-reconnect.
changelog_1222_li=Connections from a local address other than 'localhost' were not allowed if remote connections were disabled. This was always a problem, but only got visible in the last release because the server no longer connects to 'localhost' if networked.
changelog_1223_li=CreateCluster\:the property 'serverlist' is now called 'serverList'.
changelog_1223_li=The h2console.war can now be built using the Java build.
changelog_1224_li=The ConvertTraceFile tool could not parse some files because the trace mechanism did not encode prepared statement parameters.
changelog_1224_li=By default, databases are shared in the same process. For read-only databases this causes unnecessary synchronization, but safes memory. If you want that each connection opens its own database, append ;OPEN_NEW\=TRUE to the database URL.
changelog_1225_li=Databases names can now be one character long (the minimum size used to be 2 characters).
changelog_1225_li=New auto-reconnect feature will cause the JDBC driver to reconnect to the database if the connection is lost. To enable, append ;AUTO_RECONNECT\=TRUE to the database URL. This is specially helpful when using AUTO_SERVER. AUTO_SERVER automatically uses auto-reconnect.
changelog_1226_h2=Version 1.0.79 (2008-09-26)
changelog_1226_li=CreateCluster\:the property 'serverlist' is now called 'serverList'.
changelog_1227_li=Linked tables that point to the same database can now share the connection within the same database. Access to the same connection is serialized. To enable this feature, set the system property h2.shareLinkedConnections to true.
changelog_1227_li=The ConvertTraceFile tool could not parse some files because the trace mechanism did not encode prepared statement parameters.
changelog_1228_li=Multiple processes can now access the same database without having to explicitly start the server. To do that, append ;AUTO_SERVER\=TRUE to the database URL. In this case, the server is started automatically if the connection is in embedded mode, and the server mode is used if a server is running. If the process that opened the first connection is closed, the other client need to reconnect (there is no automatic re-connect so far). Remote connections are allowed, but only to this database.
changelog_1228_li=Databases names can now be one character long (the minimum size used to be 2 characters).
changelog_1229_li=The server tool now displays the correct IP address if networked.
changelog_1229_h2=Version 1.0.79 (2008-09-26)
changelog_1230_li=Can now start a TCP server with port 0 (automatically select a port).
changelog_1230_li=Linked tables that point to the same database can now share the connection within the same database. Access to the same connection is serialized. To enable this feature, set the system property h2.shareLinkedConnections to true.
changelog_1231_li=Result sets with just a unique index can now be updated (previously a primary key was required).
changelog_1231_li=Multiple processes can now access the same database without having to explicitly start the server. To do that, append ;AUTO_SERVER\=TRUE to the database URL. In this case, the server is started automatically if the connection is in embedded mode, and the server mode is used if a server is running. If the process that opened the first connection is closed, the other client need to reconnect (there is no automatic re-connect so far). Remote connections are allowed, but only to this database.
changelog_1232_li=LINKED TABLE\:the schema name can now be set. When multiple tables exist in different schema, and the schema name is not set, an exception is thrown.
changelog_1232_li=The server tool now displays the correct IP address if networked.
changelog_1233_li=LINKED TABLE\:worked around a bug in Oracle with the CHAR data type.
changelog_1233_li=Can now start a TCP server with port 0 (automatically select a port).
changelog_1234_li=Faster hash code calculation for large binary arrays.
changelog_1234_li=Result sets with just a unique index can now be updated (previously a primary key was required).
changelog_1235_li=Faster storage re-use algorithm thanks to Greg Dhuse from cleversafe.com.
changelog_1235_li=LINKED TABLE\:the schema name can now be set. When multiple tables exist in different schema, and the schema name is not set, an exception is thrown.
changelog_1236_li=The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
changelog_1236_li=LINKED TABLE\:worked around a bug in Oracle with the CHAR data type.
changelog_1237_li=The H2 Console now abbreviates large texts in results.
changelog_1237_li=Faster hash code calculation for large binary arrays.
changelog_1238_li=Multiple UNION queries could not be used in derived tables.
changelog_1238_li=Faster storage re-use algorithm thanks to Greg Dhuse from cleversafe.com.
changelog_1239_li=Linked tables can now be read-only.
changelog_1239_li=The database supports the SHOW command for better MySQL and PostgreSQL compatibility.
changelog_1240_li=Temporary linked tables are now supported.
changelog_1240_li=The H2 Console now abbreviates large texts in results.
changelog_1241_li=It was possible to create tables in read-only databases.
changelog_1241_li=Multiple UNION queries could not be used in derived tables.
changelog_1242_li=SET SCHEMA_SEARCH_PATH is now documented.
changelog_1242_li=Linked tables can now be read-only.
changelog_1243_li=SET SCHEMA did not work for views.
changelog_1243_li=Temporary linked tables are now supported.
changelog_1244_li=Row level locking for MVCC is now enabled. The exception 'Concurrent update in table ...' is still thrown, but only after the lock timeout.
changelog_1244_li=It was possible to create tables in read-only databases.
changelog_1245_li=The maximum log file size setting was ignored for large databases.
changelog_1245_li=SET SCHEMA_SEARCH_PATH is now documented.
changelog_1246_li=Multi-Version Concurrency (MVCC) may no longer be used when using the multi-threaded kernel feature (MULTI_THREADED). An exception is thrown when trying to connect with both settings. Additional synchronization is required before those features can be used together.
changelog_1246_li=SET SCHEMA did not work for views.
changelog_1247_li=The data type JAVA_OBJECT could not be used in updatable result sets.
changelog_1247_li=Row level locking for MVCC is now enabled. The exception 'Concurrent update in table ...' is still thrown, but only after the lock timeout.
changelog_1248_li=The system property h2.optimizeInJoin did not work correctly.
changelog_1248_li=The maximum log file size setting was ignored for large databases.
changelog_1249_li=Conditions such as ID\=? AND ID>? were slow.
changelog_1249_li=Multi-Version Concurrency (MVCC) may no longer be used when using the multi-threaded kernel feature (MULTI_THREADED). An exception is thrown when trying to connect with both settings. Additional synchronization is required before those features can be used together.
changelog_1250_h2=Version 1.0.78 (2008-08-28)
changelog_1250_li=The data type JAVA_OBJECT could not be used in updatable result sets.
changelog_1251_li=The documentation no longer uses a frameset (except the Javadocs).
changelog_1251_li=The system property h2.optimizeInJoin did not work correctly.
changelog_1252_li=When using DB_CLOSE_DELAY, sometimes a NullPointerException is thrown when the database is opened almost at the same time as it is closed automatically. Thanks a lot to Dmitry Pekar for finding this\!
changelog_1252_li=Conditions such as ID\=? AND ID>? were slow.
changelog_1253_li=Java methods with variable number of parameters can now be used (for Java 1.5 or newer).
changelog_1253_h2=Version 1.0.78 (2008-08-28)
changelog_1254_li=The Japanese translation has been improved by Masahiro Ikemoto. Thanks a lot\!
changelog_1254_li=The documentation no longer uses a frameset (except the Javadocs).
changelog_1255_li=The H2 Console replaced an empty user name with a single space.
changelog_1255_li=When using DB_CLOSE_DELAY, sometimes a NullPointerException is thrown when the database is opened almost at the same time as it is closed automatically. Thanks a lot to Dmitry Pekar for finding this\!
changelog_1256_li=The build target 'build jarSmall' now includes the embedded database.
changelog_1256_li=Java methods with variable number of parameters can now be used (for Java 1.5 or newer).
changelog_1257_li=JdbcDataSource now keeps the password in a char array where possible.
changelog_1257_li=The Japanese translation has been improved by Masahiro Ikemoto. Thanks a lot\!
changelog_1258_li=ResultSet.absolute did not always work with large result sets.
changelog_1258_li=The H2 Console replaced an empty user name with a single space.
changelog_1259_li=Column aliases can now be used in GROUP BY and HAVING.
changelog_1259_li=The build target 'build jarSmall' now includes the embedded database.
changelog_1260_li=Jason Brittain has contributed MySQL date functions. Thanks a lot\!They are not in the h2.jar file currently, but in src/tools/org/h2/mode/FunctionsMySQL.java. To install, add this class to the classpath and call FunctionsMySQL.register(conn) in the Java code.
changelog_1260_li=JdbcDataSource now keeps the password in a char array where possible.
changelog_1261_h2=Version 1.0.77 (2008-08-16)
changelog_1261_li=ResultSet.absolute did not always work with large result sets.
changelog_1262_li=JaQu is now using prepared statements and supports Date, Time, Timestamp.
changelog_1262_li=Column aliases can now be used in GROUP BY and HAVING.
changelog_1263_li=When using remote in-memory databases, large LOB objects did not work.
changelog_1263_li=Jason Brittain has contributed MySQL date functions. Thanks a lot\!They are not in the h2.jar file currently, but in src/tools/org/h2/mode/FunctionsMySQL.java. To install, add this class to the classpath and call FunctionsMySQL.register(conn) in the Java code.
changelog_1264_li=Timestamp columns such as TIMESTAMP(6) were not compatible to other database.
changelog_1264_h2=Version 1.0.77 (2008-08-16)
changelog_1265_li=Opening a large database was slow if there was a problem opening the previous time.
changelog_1265_li=JaQu is now using prepared statements and supports Date, Time, Timestamp.
changelog_1266_li=NOT IN(SELECT ...) was incorrect if the subquery returns no rows.
changelog_1266_li=When using remote in-memory databases, large LOB objects did not work.
changelog_1267_li=CREATE TABLE AS SELECT did not work correctly in the multi-version concurrency mode.
changelog_1267_li=Timestamp columns such as TIMESTAMP(6) were not compatible to other database.
changelog_1268_li=Support a comma before closing a list, as in\:create table test(id int,)
changelog_1268_li=Opening a large database was slow if there was a problem opening the previous time.
changelog_1269_li=MySQL compatibility\:linked tables had lower case column names on some systems.
changelog_1269_li=NOT IN(SELECT ...) was incorrect if the subquery returns no rows.
changelog_1270_li=DB2 compatibility\:the DB2 fetch-first-clause is supported.
changelog_1270_li=CREATE TABLE AS SELECT did not work correctly in the multi-version concurrency mode.
changelog_1271_li=Oracle compatibility\:old style outer join syntax using (+) did work correctly sometimes.
changelog_1271_li=Support a comma before closing a list, as in\:create table test(id int,)
changelog_1272_li=ResultSet.setFetchSize is now supported.
changelog_1272_li=MySQL compatibility\:linked tables had lower case column names on some systems.
changelog_1273_li=It has been reported that when using Install4j on some Linux systems and enabling the 'pack200' option, the h2.jar becomes corrupted by the install process, causing application failure. A workaround is to add an empty file h2.jar.nopack next to the h2.jar file. The reason for this problem is not known.
changelog_1273_li=DB2 compatibility\:the DB2 fetch-first-clause is supported.
changelog_1274_h2=Version 1.0.76 (2008-07-27)
changelog_1274_li=Oracle compatibility\:old style outer join syntax using (+) did work correctly sometimes.
changelog_1275_li=The comment of a domain (user defined data type) is now used as the default column comment when creating a column with this domain.
changelog_1275_li=ResultSet.setFetchSize is now supported.
changelog_1276_li=Invalid database names are now detected and a better error message is thrown.
changelog_1276_li=It has been reported that when using Install4j on some Linux systems and enabling the 'pack200' option, the h2.jar becomes corrupted by the install process, causing application failure. A workaround is to add an empty file h2.jar.nopack next to the h2.jar file. The reason for this problem is not known.
changelog_1277_li=ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
changelog_1277_h2=Version 1.0.76 (2008-07-27)
changelog_1278_li=Fixed the Oracle mode\:Oracle allows multiple rows only where all columns of the unique index are NULL.
changelog_1278_li=The comment of a domain (user defined data type) is now used as the default column comment when creating a column with this domain.
changelog_1279_li=There is a problem with Hibernate when using Boolean columns. A patch for Hibernate has been submitted at http\://opensource.atlassian.com/projects/hibernate/browse/HHH-3401
changelog_1279_li=Invalid database names are now detected and a better error message is thrown.
changelog_1280_li=ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
changelog_1280_li=ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
changelog_1281_li=H2 Console\:The progress display when opening a database has been improved.
changelog_1281_li=Fixed the Oracle mode\:Oracle allows multiple rows only where all columns of the unique index are NULL.
changelog_1282_li=The error message when the server doesn't start has been improved.
changelog_1282_li=There is a problem with Hibernate when using Boolean columns. A patch for Hibernate has been submitted at http\://opensource.atlassian.com/projects/hibernate/browse/HHH-3401
changelog_1283_li=Key values can now be changed in updatable result sets.
changelog_1283_li=ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
changelog_1284_li=Changes in updatable result sets are now visible even when resetting the result set.
changelog_1284_li=H2 Console\:The progress display when opening a database has been improved.
changelog_1285_li=Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
changelog_1285_li=The error message when the server doesn't start has been improved.
changelog_1286_li=The database file was growing after deleting many rows, and after large update operations.
changelog_1286_li=Key values can now be changed in updatable result sets.
changelog_1287_h2=Version 1.0.75 (2008-07-14)
changelog_1287_li=Changes in updatable result sets are now visible even when resetting the result set.
changelog_1288_li=Multi version concurrency (MVCC)\:when a row was updated or deleted, but this change was rolled back, the row was not visible by other sessions if no index was used to access it. Fixed.
changelog_1288_li=Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
changelog_1289_li=Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
changelog_1289_li=The database file was growing after deleting many rows, and after large update operations.
changelog_1290_li=The CSVREAD method did not process NULL correctly when using a whitespace field separator.
changelog_1290_h2=Version 1.0.75 (2008-07-14)
changelog_1291_li=Fixed the Oracle mode\:Oracle allows multiple rows with NULL in a unique index.
changelog_1291_li=Multi version concurrency (MVCC)\:when a row was updated or deleted, but this change was rolled back, the row was not visible by other sessions if no index was used to access it. Fixed.
changelog_1292_li=Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
changelog_1292_li=Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
changelog_1293_li=When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
changelog_1293_li=The CSVREAD method did not process NULL correctly when using a whitespace field separator.
changelog_1294_li=Referential constraint checking improvement\:now the constraint is only checked if the key column values change.
changelog_1294_li=Fixed the Oracle mode\:Oracle allows multiple rows with NULL in a unique index.
changelog_1295_li=Some database metadata calls returned the wrong data type for DATA_TYPE columns.
changelog_1295_li=Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
changelog_1296_li=The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
changelog_1296_li=When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
changelog_1297_li=The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
changelog_1297_li=Referential constraint checking improvement\:now the constraint is only checked if the key column values change.
changelog_1298_li=The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
changelog_1298_li=Some database metadata calls returned the wrong data type for DATA_TYPE columns.
changelog_1299_li=Stopping a WebServer didn't always work. Fixed.
changelog_1299_li=The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
changelog_1300_h2=Version 1.0.74 (2008-06-21)
changelog_1300_li=The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
changelog_1301_li=Work on row level locking has been started (but there is nothing usable yet).
changelog_1301_li=The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
changelog_1302_li=JaQu (Java Query), a tool similar to LINQ (Language Integrated Query; from Microsoft) is now included under src/tools/org/h2/jaqu. A small sample application is included under src/test/org/h2/test/jaqu.
changelog_1302_li=Stopping a WebServer didn't always work. Fixed.
changelog_1303_li=The source code is now switched to Java 1.6 by default. To switch back to Java 1.4, run 'build compile'. The h2.jar file is still Java 1.4.
changelog_1303_h2=Version 1.0.74 (2008-06-21)
changelog_1304_li=The ChangePassword tool is now called ChangeFileEncryption.
changelog_1304_li=Work on row level locking has been started (but there is nothing usable yet).
changelog_1305_li=It is no longer allowed to create columns with the data type NULL. Also, it is no longer allowed to convert a column to the data type NULL. This was possible before but caused data loss.
changelog_1305_li=JaQu (Java Query), a tool similar to LINQ (Language Integrated Query; from Microsoft) is now included under src/tools/org/h2/jaqu. A small sample application is included under src/test/org/h2/test/jaqu.
changelog_1306_li=When using computed columns or default values with a different data type than the column data type, a class cast exception could occur. Fixed.
changelog_1306_li=The source code is now switched to Java 1.6 by default. To switch back to Java 1.4, run 'build compile'. The h2.jar file is still Java 1.4.
changelog_1307_li=Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
changelog_1307_li=The ChangePassword tool is now called ChangeFileEncryption.
changelog_1308_li=RUNSCRIPT could throw a NullPointerException if the script name was an expression.
changelog_1308_li=It is no longer allowed to create columns with the data type NULL. Also, it is no longer allowed to convert a column to the data type NULL. This was possible before but caused data loss.
changelog_1309_li=Improved compatibility. New compatibility modes for Oracle and Derby. New compatibility flag uniqueIndexNullDistinct to only allow one row with 'NULL' in a unique index. This flag is enabled for Derby, Oracle, MSSQLServer, and HSQLDB.
changelog_1309_li=When using computed columns or default values with a different data type than the column data type, a class cast exception could occur. Fixed.
changelog_1310_li=Linked tables\:To view the statements that are executed against the target table, set the trace level to 3.
changelog_1310_li=Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
changelog_1311_li=RunScript tool\:new options to show and check the results of queries.
changelog_1311_li=RUNSCRIPT could throw a NullPointerException if the script name was an expression.
changelog_1312_li=Deadlocks are now detected. One transaction is rolled back automatically.
changelog_1312_li=Improved compatibility. New compatibility modes for Oracle and Derby. New compatibility flag uniqueIndexNullDistinct to only allow one row with 'NULL' in a unique index. This flag is enabled for Derby, Oracle, MSSQLServer, and HSQLDB.
changelog_1313_li=The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
changelog_1313_li=Linked tables\:To view the statements that are executed against the target table, set the trace level to 3.
changelog_1314_li=Support for overloaded Java methods. A user defined function can now be bound to multiple Java methods, if the Java methods have the same name but a different number of parameters. Thanks to Gary Tong for providing a patch\!
changelog_1314_li=RunScript tool\:new options to show and check the results of queries.
changelog_1315_li=Deadlocks are now detected. One transaction is rolled back automatically.
changelog_1316_li=The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
changelog_1317_li=Support for overloaded Java methods. A user defined function can now be bound to multiple Java methods, if the Java methods have the same name but a different number of parameters. Thanks to Gary Tong for providing a patch\!
roadmap_1210_li=Ability to resize the cache array when resizing the cache
roadmap_1210_li=Ability to resize the cache array when resizing the cache
roadmap_1211_li=Time based cache writing (one second after writing the log)
roadmap_1211_li=Time based cache writing (one second after writing the log)
roadmap_1212_li=Check state of H2 driver for DDLUtils\:https\://issues.apache.org/jira/browse/DDLUTILS-185
roadmap_1212_li=Check state of H2 driver for DDLUtils\:https\://issues.apache.org/jira/browse/DDLUTILS-185
roadmap_1213_li=Index usage for REGEXP LIKE.
roadmap_1213_li=Support JMX\:Create an MBean for each database and server (support JConsole). See http\://thedevcloud.blogspot.com/2008/10/displaying-hsql-database-manager-in.html http\://java.sun.com/j2se/1.5.0/docs/api/java/lang/management/ManagementFactory.html\#getPlatformMBeanServer() http\://java.sun.com/j2se/1.5.0/docs/guide/management/agent.html
roadmap_1214_li=Compatibility\:add a role DBA (like ADMIN).
roadmap_1214_li=Index usage for REGEXP LIKE.
roadmap_1215_li=Better support multiple processors for in-memory databases.
roadmap_1215_li=Compatibility\:add a role DBA (like ADMIN).
roadmap_1216_li=Access rights\:remember the owner of an object. COMMENT\:allow owner of object to change it.
roadmap_1216_li=Better support multiple processors for in-memory databases.
roadmap_1217_li=Access rights\:Finer grained access control (grant access for specific functions)
roadmap_1217_li=Access rights\:remember the owner of an object. COMMENT\:allow owner of object to change it.
roadmap_1218_li=Support N'text'
roadmap_1218_li=Access rights\:Finer grained access control (grant access for specific functions)
roadmap_1219_li=Support SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger
roadmap_1219_li=Support N'text'
roadmap_1220_li=Set a connection read only (Connection.setReadOnly)
roadmap_1220_li=Support SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger
roadmap_1221_li=In MySQL mode, for AUTO_INCREMENT columns, don't set the primary key
roadmap_1221_li=Set a connection read only (Connection.setReadOnly)
roadmap_1222_li=Use JDK 1.4 file locking to create the lock file (but not yet by default); writing a system property to detect concurrent access from the same VM (different classloaders).
roadmap_1222_li=In MySQL mode, for AUTO_INCREMENT columns, don't set the primary key
roadmap_1223_li=Support compatibility for jdbc\:hsqldb\:res\:
roadmap_1223_li=Use JDK 1.4 file locking to create the lock file (but not yet by default); writing a system property to detect concurrent access from the same VM (different classloaders).
roadmap_1224_li=Provide an Java SQL builder with standard and H2 syntax
roadmap_1224_li=Support compatibility for jdbc\:hsqldb\:res\:
roadmap_1225_li=Trace\:write OS, file system, JVM,... when opening the database
roadmap_1225_li=Provide an Java SQL builder with standard and H2 syntax
roadmap_1226_li=Support indexes for views (probably requires materialized views)
roadmap_1226_li=Trace\:write OS, file system, JVM,... when opening the database
roadmap_1227_li=Document SET SEARCH_PATH, BEGIN, EXECUTE, parameters
roadmap_1227_li=Support indexes for views (probably requires materialized views)
roadmap_1228_li=Browser\:use Desktop.isDesktopSupported and browse when using JDK 1.6
roadmap_1228_li=Document SET SEARCH_PATH, BEGIN, EXECUTE, parameters
roadmap_1229_li=Server\:use one listener (detect if the request comes from an PG or TCP client)
roadmap_1229_li=Browser\:use Desktop.isDesktopSupported and browse when using JDK 1.6
roadmap_1230_li=Store dates as 'local'. Existing files use GMT. Use escape syntax for compatibility.
roadmap_1230_li=Server\:use one listener (detect if the request comes from an PG or TCP client)
roadmap_1231_li=Support data type INTERVAL
roadmap_1231_li=Store dates as 'local'. Existing files use GMT. Use escape syntax for compatibility.
roadmap_1232_li=Optimize SELECT MIN(ID), MAX(ID), COUNT(*) FROM TEST WHERE ID BETWEEN 100 AND 200
roadmap_1258_li=Does the FTP server has problems with multithreading?
roadmap_1258_li=Javadoc\:document design patterns used
roadmap_1259_li=Write an article about SQLInjection (h2\\src\\docsrc\\html\\images\\SQLInjection.txt)
roadmap_1259_li=Does the FTP server has problems with multithreading?
roadmap_1260_li=Convert SQL-injection-2.txt to html document, include SQLInjection.java sample
roadmap_1260_li=Write an article about SQLInjection (h2\\src\\docsrc\\html\\images\\SQLInjection.txt)
roadmap_1261_li=Improve LOB in directories performance
roadmap_1261_li=Convert SQL-injection-2.txt to html document, include SQLInjection.java sample
roadmap_1262_li=Web site design\:http\://www.igniterealtime.org/projects/openfire/index.jsp
roadmap_1262_li=Improve LOB in directories performance
roadmap_1263_li=HSQLDB compatibility\:Openfire server uses\:CREATE SCHEMA PUBLIC AUTHORIZATION DBA; CREATE USER SA PASSWORD ""; GRANT DBA TO SA; SET SCHEMA PUBLIC
roadmap_1263_li=Web site design\:http\://www.igniterealtime.org/projects/openfire/index.jsp
roadmap_1264_li=Web site\:Rename Performance to Comparison [/Compatibility], move Comparison to Other Database Engines to Comparison, move Products that Work with H2 to Comparison, move Performance Tuning to Advanced Topics
roadmap_1264_li=HSQLDB compatibility\:Openfire server uses\:CREATE SCHEMA PUBLIC AUTHORIZATION DBA; CREATE USER SA PASSWORD ""; GRANT DBA TO SA; SET SCHEMA PUBLIC
roadmap_1265_li=Support JMX\:Create an MBean for each database and server (support JConsole). See http\://thedevcloud.blogspot.com/2008/10/displaying-hsql-database-manager-in.html
roadmap_1265_li=Web site\:Rename Performance to Comparison [/Compatibility], move Comparison to Other Database Engines to Comparison, move Products that Work with H2 to Comparison, move Performance Tuning to Advanced Topics
roadmap_1266_li=Translation\:use ?? in help.csv
roadmap_1266_li=Translation\:use ?? in help.csv
roadmap_1267_li=Translated .pdf
roadmap_1267_li=Translated .pdf
roadmap_1268_li=Cluster\:hot deploy (adding a node at runtime)
roadmap_1268_li=Cluster\:hot deploy (adding a node at runtime)
...
@@ -2850,9 +2853,10 @@ roadmap_1385_li=MS SQL Server compatibility\: support DATEPART syntax.
...
@@ -2850,9 +2853,10 @@ roadmap_1385_li=MS SQL Server compatibility\: support DATEPART syntax.
roadmap_1386_li=Oracle compatibility\:support CREATE OR REPLACE VIEW syntax.
roadmap_1386_li=Oracle compatibility\:support CREATE OR REPLACE VIEW syntax.
roadmap_1387_li=Sybase/DB2/Oracle compatibility\:support out parameters in stored procedures - See http\://code.google.com/p/h2database/issues/detail?id\=83
roadmap_1387_li=Sybase/DB2/Oracle compatibility\:support out parameters in stored procedures - See http\://code.google.com/p/h2database/issues/detail?id\=83
roadmap_1388_li=Support INTERVAL data type (see Oracle and others).
roadmap_1388_li=Support INTERVAL data type (see Oracle and others).
roadmap_1389_h2=Not Planned
roadmap_1389_li=Combine Server and Console tool (only keep Server).
roadmap_1390_li=HSQLDB (did) support this\:select id i from test where i<0 (other databases don't). Supporting it may break compatibility.
roadmap_1390_h2=Not Planned
roadmap_1391_li=String.intern (so that Strings can be compared with \=\=) will not be used because some VMs have problems when used extensively.
roadmap_1391_li=HSQLDB (did) support this\:select id i from test where i<0 (other databases don't). Supporting it may break compatibility.
roadmap_1392_li=String.intern (so that Strings can be compared with \=\=) will not be used because some VMs have problems when used extensively.
