@@ -86,7 +86,7 @@ Before the result is returned to the application, all rows are read by the datab
...
@@ -86,7 +86,7 @@ Before the result is returned to the application, all rows are read by the datab
Large Result Sets and External Sorting
Large Result Sets and External Sorting
@advanced_1029_p
@advanced_1029_p
For result set larger than 1000 rows, the result is buffered to disk. If ORDER BY is used, the sorting is done using an external sort algorithm. In this case, each block of rows is sorted using quick sort, then written to disk; when reading the data, the blocks are merged together.
For large result set, the result is buffered to disk. The threshold can be defined using the statement SET MAX_MEMORY_ROWS. If ORDER BY is used, the sorting is done using an external sort algorithm. In this case, each block of rows is sorted using quick sort, then written to disk; when reading the data, the blocks are merged together.
@advanced_1030_h2
@advanced_1030_h2
Large Objects
Large Objects
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@@ -1049,969 +1049,981 @@ Change Log
...
@@ -1049,969 +1049,981 @@ Change Log
Next Version (unreleased)
Next Version (unreleased)
@changelog_1002_li
@changelog_1002_li
H2 Console: The progress display when opening a database has been improved.
ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
@changelog_1003_li
@changelog_1003_li
The error message when the server doesn't start has been improved.
Fixed the Oracle mode: Oracle allows multiple rows only where all columns of the unique index are NULL.
@changelog_1004_li
@changelog_1004_li
Key values can now be changed in updatable result sets.
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_1005_li
@changelog_1005_li
Changes in updatable result sets are now visible even when resetting the result set.
ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
@changelog_1006_li
@changelog_1006_li
Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
H2 Console: The progress display when opening a database has been improved.
@changelog_1007_li
@changelog_1007_li
The error message when the server doesn't start has been improved.
@changelog_1008_li
Key values can now be changed in updatable result sets.
@changelog_1009_li
Changes in updatable result sets are now visible even when resetting the result set.
@changelog_1010_li
Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
@changelog_1011_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_1008_h2
@changelog_1012_h2
Version 1.0.75 (2008-07-14)
Version 1.0.75 (2008-07-14)
@changelog_1009_li
@changelog_1013_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_1010_li
@changelog_1014_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_1011_li
@changelog_1015_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_1012_li
@changelog_1016_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_1013_li
@changelog_1017_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_1014_li
@changelog_1018_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_1015_li
@changelog_1019_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_1016_li
@changelog_1020_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_1017_li
@changelog_1021_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_1018_li
@changelog_1022_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_1019_li
@changelog_1023_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_1020_li
@changelog_1024_li
Stopping a WebServer didn't always work. Fixed.
Stopping a WebServer didn't always work. Fixed.
@changelog_1021_h2
@changelog_1025_h2
Version 1.0.74 (2008-06-21)
Version 1.0.74 (2008-06-21)
@changelog_1022_li
@changelog_1026_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_1023_li
@changelog_1027_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_1024_li
@changelog_1028_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_1025_li
@changelog_1029_li
The ChangePassword tool is now called ChangeFileEncryption.
The ChangePassword tool is now called ChangeFileEncryption.
@changelog_1026_li
@changelog_1030_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_1027_li
@changelog_1031_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_1028_li
@changelog_1032_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_1029_li
@changelog_1033_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_1030_li
@changelog_1034_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_1031_li
@changelog_1035_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_1032_li
@changelog_1036_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_1033_li
@changelog_1037_li
Deadlocks are now detected. One transaction is rolled back automatically.
Deadlocks are now detected. One transaction is rolled back automatically.
@changelog_1034_li
@changelog_1038_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_1035_li
@changelog_1039_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!
@changelog_1036_h2
@changelog_1040_h2
Version 1.0.73 (2008-05-31)
Version 1.0.73 (2008-05-31)
@changelog_1037_li
@changelog_1041_li
ParameterMetaData now returns the right data type for most conditions, as in WHERE ID=?.
ParameterMetaData now returns the right data type for most conditions, as in WHERE ID=?.
@changelog_1038_li
@changelog_1042_li
The table SYSTEM_RANGE now supports expressions and parameters.
The table SYSTEM_RANGE now supports expressions and parameters.
@changelog_1039_li
@changelog_1043_li
New column INFORMATION_SCHEMA.CONSTRAINTS.UNIQUE_INDEX_NAME that contains the name of the unique index used to enforce this constraint, if there is such an index.
New column INFORMATION_SCHEMA.CONSTRAINTS.UNIQUE_INDEX_NAME that contains the name of the unique index used to enforce this constraint, if there is such an index.
@changelog_1040_li
@changelog_1044_li
SET QUERY_TIMEOUT and Statement.setQueryTimeout no longer commits a transaction. The same applies to SET @VARIABLE, SET LOCK_TIMEOUT, SET TRACE_LEVEL_*, SET THROTTLE, and SET PATH.
SET QUERY_TIMEOUT and Statement.setQueryTimeout no longer commits a transaction. The same applies to SET @VARIABLE, SET LOCK_TIMEOUT, SET TRACE_LEVEL_*, SET THROTTLE, and SET PATH.
@changelog_1041_li
@changelog_1045_li
The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
@changelog_1042_li
@changelog_1046_li
MySQL compatibility: auto_increment column are no longer automatically converted to primary key columns.
MySQL compatibility: auto_increment column are no longer automatically converted to primary key columns.
@changelog_1043_li
@changelog_1047_li
PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
@changelog_1044_li
@changelog_1048_li
Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
@changelog_1045_li
@changelog_1049_li
A role or right can now be granted or revoked multiple times without getting an exception.
A role or right can now be granted or revoked multiple times without getting an exception.
@changelog_1046_li
@changelog_1050_li
Infinite numbers in SQL scripts are listed as POWER(0, -1)), negative infinite as (-POWER(0, -1)), and NaN (not a number) as SQRT(-1).
Infinite numbers in SQL scripts are listed as POWER(0, -1)), negative infinite as (-POWER(0, -1)), and NaN (not a number) as SQRT(-1).
@changelog_1047_li
@changelog_1051_li
The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
@changelog_1048_li
@changelog_1052_li
The fulltext search did not support CLOB data types.
The fulltext search did not support CLOB data types.
@changelog_1049_li
@changelog_1053_li
If the drive with the database files was disconnected or unmounted while writing, sometimes a stack overflow exception was thrown instead of a IO exception.
If the drive with the database files was disconnected or unmounted while writing, sometimes a stack overflow exception was thrown instead of a IO exception.
@changelog_1050_li
@changelog_1054_li
The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
@changelog_1051_li
@changelog_1055_li
If the password was passed as a char array, it was kept in an internal buffer longer than required. Theoretically the password could have been stolen if the main memory was swapped to disk before the garbage collection was run.
If the password was passed as a char array, it was kept in an internal buffer longer than required. Theoretically the password could have been stolen if the main memory was swapped to disk before the garbage collection was run.
@changelog_1052_h2
@changelog_1056_h2
Version 1.0.72 (2008-05-10)
Version 1.0.72 (2008-05-10)
@changelog_1053_li
@changelog_1057_li
Some databases could not be opened when appending ;RECOVER=1 to the database URL.
Some databases could not be opened when appending ;RECOVER=1 to the database URL.
@changelog_1054_li
@changelog_1058_li
The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
@changelog_1055_li
@changelog_1059_li
Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
@changelog_1056_li
@changelog_1060_li
ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
@changelog_1057_li
@changelog_1061_li
H2 Shell: DESCRIBE now supports an schema name.
H2 Shell: DESCRIBE now supports an schema name.
@changelog_1058_li
@changelog_1062_li
A subset of the PostgreSQL 'dollar quoting' feature is now supported.
A subset of the PostgreSQL 'dollar quoting' feature is now supported.
@changelog_1059_li
@changelog_1063_li
SLF4J is now supported by using adding TRACE_LEVEL_FILE=4 to the database URL.
SLF4J is now supported by using adding TRACE_LEVEL_FILE=4 to the database URL.
@changelog_1060_li
@changelog_1064_li
The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
@changelog_1061_li
@changelog_1065_li
Triggers are no longer executed when changing the table structure (ALTER TABLE).
Triggers are no longer executed when changing the table structure (ALTER TABLE).
@changelog_1062_li
@changelog_1066_li
When setting BLOB or CLOB values larger than 65 KB using a remote connection, temporary files were kept on the client longer than required (until the connection was closed or the object is garbage collected). Now they are removed as soon as the PreparedStatement is closed, or when the value is overwritten.
When setting BLOB or CLOB values larger than 65 KB using a remote connection, temporary files were kept on the client longer than required (until the connection was closed or the object is garbage collected). Now they are removed as soon as the PreparedStatement is closed, or when the value is overwritten.
@changelog_1063_li
@changelog_1067_li
Statements can now be cancelled remotely (when using remote connections).
Statements can now be cancelled remotely (when using remote connections).
@changelog_1064_li
@changelog_1068_li
The Shell tool now uses java.io.Console to read the password when using JDK 1.6
The Shell tool now uses java.io.Console to read the password when using JDK 1.6
@changelog_1065_li
@changelog_1069_li
When using read-only databases and setting LOG=2, an exception was written to the trace file when closing the database. Fixed.
When using read-only databases and setting LOG=2, an exception was written to the trace file when closing the database. Fixed.
@changelog_1066_h2
@changelog_1070_h2
Version 1.0.71 (2008-04-25)
Version 1.0.71 (2008-04-25)
@changelog_1067_li
@changelog_1071_li
H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
@changelog_1068_li
@changelog_1072_li
Sometimes an exception 'File ID mismatch' or 'try to add a record twice' occurred after large records (8 KB or larger) are updated or deleted. See also http://code.google.com/p/h2database/issues/detail?id=22
Sometimes an exception 'File ID mismatch' or 'try to add a record twice' occurred after large records (8 KB or larger) are updated or deleted. See also http://code.google.com/p/h2database/issues/detail?id=22
@changelog_1069_li
@changelog_1073_li
H2 Console: The tools can now be translated (it didn't work in the last release).
H2 Console: The tools can now be translated (it didn't work in the last release).
@changelog_1070_li
@changelog_1074_li
New traditional Chinese translation. Thanks a lot to Derek Chao!
New traditional Chinese translation. Thanks a lot to Derek Chao!
@changelog_1071_li
@changelog_1075_li
Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
@changelog_1072_h2
@changelog_1076_h2
Version 1.0.70 (2008-04-20)
Version 1.0.70 (2008-04-20)
@changelog_1073_li
@changelog_1077_li
The plan is to dual-license H2. The additional license is EPL (Eclipse Public License). The current license (MPL, Mozilla Public License) will stay. Current users are not affected because they can keep MPL. EPL is very similar to MPL, the only bigger difference is related to patents (EPL is a bit more business friendly in this regard). See also http://opensource.org/licenses/eclipse-1.0.php, http://www.eclipse.org/legal/eplfaq.php (FAQ), http://blogs.zdnet.com/Burnette/?p=131
The plan is to dual-license H2. The additional license is EPL (Eclipse Public License). The current license (MPL, Mozilla Public License) will stay. Current users are not affected because they can keep MPL. EPL is very similar to MPL, the only bigger difference is related to patents (EPL is a bit more business friendly in this regard). See also http://opensource.org/licenses/eclipse-1.0.php, http://www.eclipse.org/legal/eplfaq.php (FAQ), http://blogs.zdnet.com/Burnette/?p=131
@changelog_1074_li
@changelog_1078_li
Multi version concurrency (MVCC): when a row was updated, and the updated column was not indexed, this update was visible sometimes for other sessions even if it was not committed.
Multi version concurrency (MVCC): when a row was updated, and the updated column was not indexed, this update was visible sometimes for other sessions even if it was not committed.
@changelog_1075_li
@changelog_1079_li
Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
@changelog_1076_li
@changelog_1080_li
New system property h2.enableAnonymousSSL (default: true) to enable anonymous SSL connections.
New system property h2.enableAnonymousSSL (default: true) to enable anonymous SSL connections.
@changelog_1077_li
@changelog_1081_li
The precision if SUBSTR is now calculated if possible.
The precision if SUBSTR is now calculated if possible.
@changelog_1078_li
@changelog_1082_li
The autocomplete in the H2 Console has been improved a bit.
The autocomplete in the H2 Console has been improved a bit.
@changelog_1079_li
@changelog_1083_li
The tools in the H2 Console are now translatable.
The tools in the H2 Console are now translatable.
@changelog_1080_li
@changelog_1084_li
The servlet and lucene jar files are now automatically downloaded when building.
The servlet and lucene jar files are now automatically downloaded when building.
@changelog_1081_li
@changelog_1085_li
The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
@changelog_1082_li
@changelog_1086_li
Started to write a Ant replacement ('JAnt') that uses pure Java build definitions. Advantages: ability to debug the build, extensible, flexible, no XML, a bit faster. Future plan: support creating custom h2 distributions (for embedded use). Maybe create a new project 'Jant' or 'Javen' if other people are interested.
Started to write a Ant replacement ('JAnt') that uses pure Java build definitions. Advantages: ability to debug the build, extensible, flexible, no XML, a bit faster. Future plan: support creating custom h2 distributions (for embedded use). Maybe create a new project 'Jant' or 'Javen' if other people are interested.
@changelog_1083_li
@changelog_1087_li
The jar file is now about 10% smaller because the variable debugging info is no longer included. The source file and line number debugging info is still included. If required, the jar file size of the full version can be further reduced to about 720 KB using 'build jarSmall' or even more by removing unneeded components.
The jar file is now about 10% smaller because the variable debugging info is no longer included. The source file and line number debugging info is still included. If required, the jar file size of the full version can be further reduced to about 720 KB using 'build jarSmall' or even more by removing unneeded components.
@changelog_1084_li
@changelog_1088_li
Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome!
Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome!
@changelog_1085_li
@changelog_1089_li
Databases in zip files: large queries are now supported. Temp files are created in the temp directory if required. The documentation how to create the zip file has been corrected.
Databases in zip files: large queries are now supported. Temp files are created in the temp directory if required. The documentation how to create the zip file has been corrected.
The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
@changelog_1088_li
@changelog_1092_li
Optimization for MIN() and MAX() when using MVCC.
Optimization for MIN() and MAX() when using MVCC.
@changelog_1089_li
@changelog_1093_li
To protect against remote brute force password attacks, the delay after each unsuccessful login now gets double as long. New system properties h2.delayWrongPasswordMin and h2.delayWrongPasswordMax.
To protect against remote brute force password attacks, the delay after each unsuccessful login now gets double as long. New system properties h2.delayWrongPasswordMin and h2.delayWrongPasswordMax.
@changelog_1090_li
@changelog_1094_li
After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
@changelog_1091_li
@changelog_1095_li
Adding a IDENTITY column to a table with data threw a lock timeout.
Adding a IDENTITY column to a table with data threw a lock timeout.
@changelog_1092_li
@changelog_1096_li
OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
@changelog_1093_li
@changelog_1097_li
The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
@changelog_1094_li
@changelog_1098_li
The ConvertTraceFile tool now generates SQL statement statistics at the end of the SQL script file (similar to the profiling data generated when using java -Xrunhprof).
The ConvertTraceFile tool now generates SQL statement statistics at the end of the SQL script file (similar to the profiling data generated when using java -Xrunhprof).
@changelog_1095_li
@changelog_1099_li
Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
@changelog_1096_h2
@changelog_1100_h2
Version 1.0.69 (2008-03-29)
Version 1.0.69 (2008-03-29)
@changelog_1097_li
@changelog_1101_li
Most command line tools can now be called from within the H2 Console.
Most command line tools can now be called from within the H2 Console.
@changelog_1098_li
@changelog_1102_li
A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
@changelog_1099_li
@changelog_1103_li
The command line options in the tools have changed: instead of '-log true' now '-trace' is used. Also, '-ifExists', '-tcpSSL' and '-tcpAllowOthers' and so on have changed: now the 'true' is no longer needed. The old behavior is still supported.
The command line options in the tools have changed: instead of '-log true' now '-trace' is used. Also, '-ifExists', '-tcpSSL' and '-tcpAllowOthers' and so on have changed: now the 'true' is no longer needed. The old behavior is still supported.
@changelog_1100_li
@changelog_1104_li
New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
@changelog_1101_li
@changelog_1105_li
Performance was very slow when using LOG=2 and deleting or updating all rows of a table in a loop. Fixed.
Performance was very slow when using LOG=2 and deleting or updating all rows of a table in a loop. Fixed.
@changelog_1102_li
@changelog_1106_li
ALTER TABLE or CREATE TABLE now support parameters for the password field.
ALTER TABLE or CREATE TABLE now support parameters for the password field.
@changelog_1103_li
@changelog_1107_li
The linear hash has been removed. It was always slower than the b-tree index, and there were some bugs that would be hard to fix.
The linear hash has been removed. It was always slower than the b-tree index, and there were some bugs that would be hard to fix.
@changelog_1104_li
@changelog_1108_li
TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
@changelog_1105_li
@changelog_1109_li
Fulltext search (native implementation): The words table is no longer an in-memory table because this caused memory problems in some cases.
Fulltext search (native implementation): The words table is no longer an in-memory table because this caused memory problems in some cases.
@changelog_1106_li
@changelog_1110_li
It was possible to create a role with the name as an existing user (but not vice versa). This is not allowed any more.
It was possible to create a role with the name as an existing user (but not vice versa). This is not allowed any more.
@changelog_1107_li
@changelog_1111_li
The recovery tool didn't work correctly for tables without rows.
The recovery tool didn't work correctly for tables without rows.
@changelog_1108_li
@changelog_1112_li
For years below 1, the YEAR method didn't return the correct value, and the conversion from date and timestamp to varchar was incorrect.
For years below 1, the YEAR method didn't return the correct value, and the conversion from date and timestamp to varchar was incorrect.
@changelog_1109_li
@changelog_1113_li
CSVWRITE caused a NullPointerException when not specifying a nullString.
CSVWRITE caused a NullPointerException when not specifying a nullString.
@changelog_1110_li
@changelog_1114_li
When a log file switch occurred just after a truncate table or drop table statement, the database could not be started normally (RECOVER=1 was required). Fixed.
When a log file switch occurred just after a truncate table or drop table statement, the database could not be started normally (RECOVER=1 was required). Fixed.
@changelog_1111_li
@changelog_1115_li
When a log file switch occurred in the middle of a sequence flush (sequences are only flushed every 32 values by default), the sequence value was lost. Fixed.
When a log file switch occurred in the middle of a sequence flush (sequences are only flushed every 32 values by default), the sequence value was lost. Fixed.
@changelog_1112_li
@changelog_1116_li
Altering a sequence didn't unlock the system table when autocommit switched off.
Altering a sequence didn't unlock the system table when autocommit switched off.
@changelog_1113_h2
@changelog_1117_h2
Version 1.0.68 (2008-03-18)
Version 1.0.68 (2008-03-18)
@changelog_1114_li
@changelog_1118_li
Very large SELECT DISTINCT and UNION EXCEPT queries are now supported, however this feature is disabled by default. To enable it, set the system property h2.maxMemoryRowsDistinct to a lower value, for example 10000.
Very large SELECT DISTINCT and UNION EXCEPT queries are now supported, however this feature is disabled by default. To enable it, set the system property h2.maxMemoryRowsDistinct to a lower value, for example 10000.
@changelog_1115_li
@changelog_1119_li
A error is now thrown when trying to call a method inside a trigger that implicitly commits the current transaction, if an object is locked.
A error is now thrown when trying to call a method inside a trigger that implicitly commits the current transaction, if an object is locked.
@changelog_1116_li
@changelog_1120_li
Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
@changelog_1117_li
@changelog_1121_li
ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
@changelog_1118_li
@changelog_1122_li
New system property h2.aliasColumnName. When enabled, aliased columns (as in SELECT ID AS I FROM TEST) return the real table and column name in ResultSetMetaData.getTableName() and getColumnName(). This is disabled by default for compatibility with other databases (HSQLDB, Apache Derby, PostgreSQL, some version of MySQL). In version 1.1 this setting will be enabled.
New system property h2.aliasColumnName. When enabled, aliased columns (as in SELECT ID AS I FROM TEST) return the real table and column name in ResultSetMetaData.getTableName() and getColumnName(). This is disabled by default for compatibility with other databases (HSQLDB, Apache Derby, PostgreSQL, some version of MySQL). In version 1.1 this setting will be enabled.
@changelog_1119_li
@changelog_1123_li
When using encrypted databases, and using the wrong file password, the log file was renamed if the database was not already open. Fixed.
When using encrypted databases, and using the wrong file password, the log file was renamed if the database was not already open. Fixed.
@changelog_1120_li
@changelog_1124_li
Improved performance when using lob files in directories (however this is still disabled by default)
Improved performance when using lob files in directories (however this is still disabled by default)
@changelog_1121_li
@changelog_1125_li
H2 Console: autocomplete didn't work with very large scripts. Fixed.
H2 Console: autocomplete didn't work with very large scripts. Fixed.
@changelog_1122_li
@changelog_1126_li
Fulltext search: new method SEARCH_DATA that returns the column names and primary keys as arrays.
Fulltext search: new method SEARCH_DATA that returns the column names and primary keys as arrays.
@changelog_1123_li
@changelog_1127_li
New experimental optimization for GROUP BY queries if an index can be used that matches the group by columns. To enable this optimization, set the system property h2.optimizeGroupSorted to true.
New experimental optimization for GROUP BY queries if an index can be used that matches the group by columns. To enable this optimization, set the system property h2.optimizeGroupSorted to true.
@changelog_1124_li
@changelog_1128_li
When using multi-version concurrency (MVCC=TRUE), duplicate rows could appear in the result set when running queries with uncommitted changes in the same session.
When using multi-version concurrency (MVCC=TRUE), duplicate rows could appear in the result set when running queries with uncommitted changes in the same session.
@changelog_1125_li
@changelog_1129_li
H2 Console: remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
H2 Console: remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
@changelog_1126_li
@changelog_1130_li
H2 Console: on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
H2 Console: on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
@changelog_1127_li
@changelog_1131_li
H2 Console: the start window works better with IKVM
H2 Console: the start window works better with IKVM
@changelog_1128_li
@changelog_1132_li
H2 Console: improved compatibility with Safari (Safari requires keep-alive)
H2 Console: improved compatibility with Safari (Safari requires keep-alive)
@changelog_1129_li
@changelog_1133_li
Random: the process didn't stop if generating the random seed using the standard way (SecureRandom.generateSeed) was very slow. Now using a daemon thread to avoid this problem.
Random: the process didn't stop if generating the random seed using the standard way (SecureRandom.generateSeed) was very slow. Now using a daemon thread to avoid this problem.
@changelog_1130_li
@changelog_1134_li
SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
@changelog_1131_li
@changelog_1135_li
When using a view, the column precision was changed to the default scale for some data types.
When using a view, the column precision was changed to the default scale for some data types.
@changelog_1132_li
@changelog_1136_li
CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
@changelog_1133_li
@changelog_1137_li
Some long running queries could not be cancelled.
Some long running queries could not be cancelled.
@changelog_1134_li
@changelog_1138_li
Queries with many outer join tables were very slow. Fixed.
Queries with many outer join tables were very slow. Fixed.
@changelog_1135_li
@changelog_1139_li
The performance of text comparison has been improved when using locale sensitive string comparison (SET COLLATOR). Now CollationKey is used with a LRU cache. The default cache size is 10000, and can be changed using the system property h2.collatorCacheSize. Use 0 to disable the cache.
The performance of text comparison has been improved when using locale sensitive string comparison (SET COLLATOR). Now CollationKey is used with a LRU cache. The default cache size is 10000, and can be changed using the system property h2.collatorCacheSize. Use 0 to disable the cache.
@changelog_1136_li
@changelog_1140_li
UPDATE SET column=DEFAULT is now supported.
UPDATE SET column=DEFAULT is now supported.
@changelog_1137_h2
@changelog_1141_h2
Version 1.0.67 (2008-02-22)
Version 1.0.67 (2008-02-22)
@changelog_1138_li
@changelog_1142_li
New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
@changelog_1139_li
@changelog_1143_li
CREATE TABLE AS SELECT now supports specifying the column list and data types.
CREATE TABLE AS SELECT now supports specifying the column list and data types.
@changelog_1140_li
@changelog_1144_li
Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
@changelog_1141_li
@changelog_1145_li
A user now has all rights on his own local temporary tables.
A user now has all rights on his own local temporary tables.
@changelog_1142_li
@changelog_1146_li
The CSV tool now supports a custom lineSeparator.
The CSV tool now supports a custom lineSeparator.
@changelog_1143_li
@changelog_1147_li
When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
@changelog_1144_li
@changelog_1148_li
The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen!
The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen!
@changelog_1145_li
@changelog_1149_li
Databases can now be opened even if trigger classes are not in the classpath. The exception is thrown when trying to fire the trigger.
Databases can now be opened even if trigger classes are not in the classpath. The exception is thrown when trying to fire the trigger.
@changelog_1146_li
@changelog_1150_li
Opening databases with ACCESS_MODE_DATA=r is now supported. In this case the database is read-only, but the files don't not need to be read-only.
Opening databases with ACCESS_MODE_DATA=r is now supported. In this case the database is read-only, but the files don't not need to be read-only.
@changelog_1147_li
@changelog_1151_li
Security: The database now waits 200 ms before throwing an exception if the user name or password don't match, to slow down dictionary attacks.
Security: The database now waits 200 ms before throwing an exception if the user name or password don't match, to slow down dictionary attacks.
@changelog_1148_li
@changelog_1152_li
The value cache is now a soft reference cache. This should help save memory.
The value cache is now a soft reference cache. This should help save memory.
@changelog_1149_li
@changelog_1153_li
CREATE INDEX on a table with many rows could run out of memory. Fixed.
CREATE INDEX on a table with many rows could run out of memory. Fixed.
@changelog_1150_li
@changelog_1154_li
Large result sets are now a bit faster.
Large result sets are now a bit faster.
@changelog_1151_li
@changelog_1155_li
ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
@changelog_1152_li
@changelog_1156_li
When setting the base directory on the command line, the user directory prefix ('~') was ignored.
When setting the base directory on the command line, the user directory prefix ('~') was ignored.
@changelog_1153_li
@changelog_1157_li
The DbStarter servlet didn't start the TCP listener even if configured.
The DbStarter servlet didn't start the TCP listener even if configured.
@changelog_1154_li
@changelog_1158_li
Statement.setQueryTimeout() is now supported.
Statement.setQueryTimeout() is now supported.
@changelog_1155_li
@changelog_1159_li
New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
@changelog_1156_li
@changelog_1160_li
Changing the transaction log level (SET LOG) is now written to the trace file by default.
Changing the transaction log level (SET LOG) is now written to the trace file by default.
@changelog_1157_li
@changelog_1161_li
In a SQL script, primary key constraints are now ordered before foreign key constraints.
In a SQL script, primary key constraints are now ordered before foreign key constraints.
@changelog_1158_li
@changelog_1162_li
It was not possible to create a referential constraint to a table in a different schema in some situations.
It was not possible to create a referential constraint to a table in a different schema in some situations.
@changelog_1159_li
@changelog_1163_li
The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
@changelog_1160_h2
@changelog_1164_h2
Version 1.0.66 (2008-02-02)
Version 1.0.66 (2008-02-02)
@changelog_1161_li
@changelog_1165_li
There is a new online error analyzer tool.
There is a new online error analyzer tool.
@changelog_1162_li
@changelog_1166_li
H2 Console: stack traces are now links to the source code in the source repository (H2 database only).
H2 Console: stack traces are now links to the source code in the source repository (H2 database only).
@changelog_1163_li
@changelog_1167_li
CHAR data type equals comparison was case insensitive instead of case sensitive.
CHAR data type equals comparison was case insensitive instead of case sensitive.
@changelog_1164_li
@changelog_1168_li
The exception 'Value too long for column' now includes the data.
The exception 'Value too long for column' now includes the data.
@changelog_1165_li
@changelog_1169_li
The table name was missing in the documentation of CREATE INDEX.
The table name was missing in the documentation of CREATE INDEX.
@changelog_1166_li
@changelog_1170_li
Better support for IKVM (www.ikvm.net): the H2 Console now opens a browser window.
Better support for IKVM (www.ikvm.net): the H2 Console now opens a browser window.
@changelog_1167_li
@changelog_1171_li
The cache size was not correctly calculated for tables with large objects (specially if compression is used). This could lead to out-of-memory exceptions.
The cache size was not correctly calculated for tables with large objects (specially if compression is used). This could lead to out-of-memory exceptions.
@changelog_1168_li
@changelog_1172_li
The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
@changelog_1169_li
@changelog_1173_li
The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
@changelog_1170_li
@changelog_1174_li
The acting as PostgreSQL server, when a base directory was set, and the H2 Console was started as well, the base directory was applied twice.
The acting as PostgreSQL server, when a base directory was set, and the H2 Console was started as well, the base directory was applied twice.
@changelog_1171_li
@changelog_1175_li
Calling EXTRACT(HOUR FROM ...) or EXTRACT(HH FROM ...) returned the wrong values (0 to 11 instead of 0 to 23). All other tested databases return values from 0 to 23. Please check if your application relies on the old behavior before upgrading.
Calling EXTRACT(HOUR FROM ...) or EXTRACT(HH FROM ...) returned the wrong values (0 to 11 instead of 0 to 23). All other tested databases return values from 0 to 23. Please check if your application relies on the old behavior before upgrading.
@changelog_1172_li
@changelog_1176_li
For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
@changelog_1173_li
@changelog_1177_li
Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
@changelog_1174_li
@changelog_1178_li
Variables: large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
Variables: large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
@changelog_1175_li
@changelog_1179_li
Fulltext search is now supported in named in-memory databases.
Fulltext search is now supported in named in-memory databases.
@changelog_1176_li
@changelog_1180_li
H2 Console: multiple consecutive spaces in the setting name did not work. Fixed.
H2 Console: multiple consecutive spaces in the setting name did not work. Fixed.
@changelog_1177_h2
@changelog_1181_h2
Version 1.0.65 (2008-01-18)
Version 1.0.65 (2008-01-18)
@changelog_1178_li
@changelog_1182_li
The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
@changelog_1179_li
@changelog_1183_li
A recovery bug has been fixed. With older versions, it was necessary to add ;RECOVER=1 to the database URL in cases where it should not have been required.
A recovery bug has been fixed. With older versions, it was necessary to add ;RECOVER=1 to the database URL in cases where it should not have been required.
@changelog_1180_li
@changelog_1184_li
The performance for DROP and DROP ALL OBJECTS has been improved.
The performance for DROP and DROP ALL OBJECTS has been improved.
@changelog_1181_li
@changelog_1185_li
The ChangePassword API has been improved.
The ChangePassword API has been improved.
@changelog_1182_li
@changelog_1186_li
User defined variables are now supported. Examples: SET @VAR=10;CALL @VAR. This can be used for running totals as in: select x, set(@t, ifnull(@t, 0) + x) from system_range(1, 10)
User defined variables are now supported. Examples: SET @VAR=10;CALL @VAR. This can be used for running totals as in: select x, set(@t, ifnull(@t, 0) + x) from system_range(1, 10)
@changelog_1183_li
@changelog_1187_li
The Ukrainian translation has been improved.
The Ukrainian translation has been improved.
@changelog_1184_li
@changelog_1188_li
CALL statements can now be used in batch updates and called using Statement.executeUpdate.
CALL statements can now be used in batch updates and called using Statement.executeUpdate.
@changelog_1185_li
@changelog_1189_li
New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
@changelog_1186_li
@changelog_1190_li
The optimizer did not use multi column indexes for range queries in some cases. Fixed.
The optimizer did not use multi column indexes for range queries in some cases. Fixed.
@changelog_1187_li
@changelog_1191_li
The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
@changelog_1188_li
@changelog_1192_li
The bind IP address can now be set when using multi-homed host (if multiple network adapters are available) using the system property h2.bindAddress.
The bind IP address can now be set when using multi-homed host (if multiple network adapters are available) using the system property h2.bindAddress.
@changelog_1189_li
@changelog_1193_li
Batch update: Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
Batch update: Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
@changelog_1190_li
@changelog_1194_li
Indexes of unique or foreign constraints where not dropped when the constraint was dropped after altering the table (for example dropping a column). Fixed.
Indexes of unique or foreign constraints where not dropped when the constraint was dropped after altering the table (for example dropping a column). Fixed.
@changelog_1191_li
@changelog_1195_li
The performance for large result sets in the server mode has been improved.
The performance for large result sets in the server mode has been improved.
@changelog_1192_li
@changelog_1196_li
The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
@changelog_1193_li
@changelog_1197_li
The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
@changelog_1194_li
@changelog_1198_li
The SCRIPT command did not split up CLOB data correctly. Fixed.
The SCRIPT command did not split up CLOB data correctly. Fixed.
@changelog_1195_li
@changelog_1199_li
Optimization for single column distinct queries with an index: select distinct name from test. Can be disabled by setting the system property h2.optimizeDistinct to false.
Optimization for single column distinct queries with an index: select distinct name from test. Can be disabled by setting the system property h2.optimizeDistinct to false.
@changelog_1196_li
@changelog_1200_li
DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
@changelog_1197_li
@changelog_1201_li
PostgreSQL compatibility: COUNT(T.*) is now supported.
PostgreSQL compatibility: COUNT(T.*) is now supported.
@changelog_1198_li
@changelog_1202_li
LIKE comparisons are now faster.
LIKE comparisons are now faster.
@changelog_1199_li
@changelog_1203_li
Encrypted databases are now faster.
Encrypted databases are now faster.
@changelog_1200_h2
@changelog_1204_h2
Version 1.0.64 (2007-12-27)
Version 1.0.64 (2007-12-27)
@changelog_1201_li
@changelog_1205_li
3-way union queries with prepared statement or views could return the wrong results. Fixed.
3-way union queries with prepared statement or views could return the wrong results. Fixed.
@changelog_1202_li
@changelog_1206_li
The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
@changelog_1203_li
@changelog_1207_li
CSV tool: some escape/separator character combinations did not work. Fixed.
CSV tool: some escape/separator character combinations did not work. Fixed.
@changelog_1204_li
@changelog_1208_li
CSV tool: the character # could not be used as a separator when reading.
CSV tool: the character # could not be used as a separator when reading.
@changelog_1205_li
@changelog_1209_li
Recovery: when the index file is corrupt, now the database deletes it and re-creates it automatically.
Recovery: when the index file is corrupt, now the database deletes it and re-creates it automatically.
@changelog_1206_li
@changelog_1210_li
The MVCC mode did not work well with in-memory databases. Fixed.
The MVCC mode did not work well with in-memory databases. Fixed.
@changelog_1207_li
@changelog_1211_li
The FTP server now supports a event listener. Thanks Fulvio Biondi for the help!
The FTP server now supports a event listener. Thanks Fulvio Biondi for the help!
@changelog_1208_li
@changelog_1212_li
New system function CANCEL_SESSION to cancel the currently executing statement of another session.
New system function CANCEL_SESSION to cancel the currently executing statement of another session.
@changelog_1209_li
@changelog_1213_li
The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
@changelog_1210_li
@changelog_1214_li
H2 Console: when editing result sets, columns can now be set to null. The text 'null' must be escaped using '=null'.
H2 Console: when editing result sets, columns can now be set to null. The text 'null' must be escaped using '=null'.
@changelog_1211_li
@changelog_1215_li
New built-in functions RPAD and LPAD.
New built-in functions RPAD and LPAD.
@changelog_1212_li
@changelog_1216_li
New meta data table INFORMATION_SCHEMA.SESSIONS and LOCKS to get information about active connections and locks. Admins will see all connections, non-admins only their own session.
New meta data table INFORMATION_SCHEMA.SESSIONS and LOCKS to get information about active connections and locks. Admins will see all connections, non-admins only their own session.
@changelog_1213_li
@changelog_1217_li
The Ukrainian translation was not working in the last release. Fixed.
The Ukrainian translation was not working in the last release. Fixed.
@changelog_1214_li
@changelog_1218_li
Creating many tables (many hundreds) was slow. Fixed.
Creating many tables (many hundreds) was slow. Fixed.
@changelog_1215_li
@changelog_1219_li
Opening a database with many indexes (thousands) was slow. Fixed.
Opening a database with many indexes (thousands) was slow. Fixed.
@changelog_1216_li
@changelog_1220_li
H2 Console / autocomplete: Ctrl+Space now shows the list in all modes.
H2 Console / autocomplete: Ctrl+Space now shows the list in all modes.
@changelog_1217_li
@changelog_1221_li
The method Trigger.init has been changed: the parameters 'before' and 'type', have been added to the init method.
The method Trigger.init has been changed: the parameters 'before' and 'type', have been added to the init method.
@changelog_1218_li
@changelog_1222_li
The performance has been improved for ResultSet methods with column name.
The performance has been improved for ResultSet methods with column name.
@changelog_1219_li
@changelog_1223_li
A stack trace was thrown if the system did not provide a quick secure random source and if there is no network or the network settings are not configured. Fixed.
A stack trace was thrown if the system did not provide a quick secure random source and if there is no network or the network settings are not configured. Fixed.
@changelog_1220_li
@changelog_1224_li
The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar!
The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar!
@changelog_1221_li
@changelog_1225_li
Improved debugging support: toString methods of most object now return a meaningful text.
Improved debugging support: toString methods of most object now return a meaningful text.
@changelog_1222_li
@changelog_1226_li
The classes DbStarter and WebServlet have been moved to src/main.
The classes DbStarter and WebServlet have been moved to src/main.
@changelog_1223_li
@changelog_1227_li
The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
@changelog_1224_li
@changelog_1228_li
Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
@changelog_1225_li
@changelog_1229_li
The database could not be used in Java applets due to security exceptions. Fixed.
The database could not be used in Java applets due to security exceptions. Fixed.
@changelog_1226_h2
@changelog_1230_h2
Version 1.0.63 (2007-12-02)
Version 1.0.63 (2007-12-02)
@changelog_1227_li
@changelog_1231_li
The SecurePassword example has been improved.
The SecurePassword example has been improved.
@changelog_1228_li
@changelog_1232_li
In time zones where the summer time saving limit is at midnight, some dates do not work in some virtual machines, for example 2007-10-14 in Chile, using the Sun JVM 1.6.0_03-b05. Fixed.
In time zones where the summer time saving limit is at midnight, some dates do not work in some virtual machines, for example 2007-10-14 in Chile, using the Sun JVM 1.6.0_03-b05. Fixed.
@changelog_1229_li
@changelog_1233_li
The native fulltext search was not working properly after re-connecting.
The native fulltext search was not working properly after re-connecting.
@changelog_1230_li
@changelog_1234_li
Improved FTP server: now the PORT command is supported.
Improved FTP server: now the PORT command is supported.
@changelog_1231_li
@changelog_1235_li
Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
@changelog_1232_li
@changelog_1236_li
Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin=true
Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin=true
@changelog_1233_li
@changelog_1237_li
The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot!
The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot!
@changelog_1234_li
@changelog_1238_li
New function TABLE_DISTINCT.
New function TABLE_DISTINCT.
@changelog_1235_li
@changelog_1239_li
Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
@changelog_1236_li
@changelog_1240_li
Certain setting in the Server didn't work (http://code.google.com/p/h2database/issues/detail?id=7).
Certain setting in the Server didn't work (http://code.google.com/p/h2database/issues/detail?id=7).
@changelog_1237_h2
@changelog_1241_h2
Version 1.0.62 (2007-11-25)
Version 1.0.62 (2007-11-25)
@changelog_1238_li
@changelog_1242_li
Large updates and deletes are now supported by buffering data to disk if required. The threshold is currently set to 100'000 bytes and can be changed using SET MAX_OPERATION_MEMORY or using by appending ;MAX_OPERATION_MEMORY=.. to the database URL. See also the docs.
Large updates and deletes are now supported by buffering data to disk if required. The threshold is currently set to 100'000 bytes and can be changed using SET MAX_OPERATION_MEMORY or using by appending ;MAX_OPERATION_MEMORY=.. to the database URL. See also the docs.
@changelog_1239_li
@changelog_1243_li
MVCC: now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
MVCC: now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
@changelog_1240_li
@changelog_1244_li
Referential integrity checks didn't lock the referenced table, and thus could read uncommitted rows of other connections. In that way the referential constraints could get violated (except when using MVCC).
Referential integrity checks didn't lock the referenced table, and thus could read uncommitted rows of other connections. In that way the referential constraints could get violated (except when using MVCC).
@changelog_1241_li
@changelog_1245_li
Renaming or dropping a user with a schema, or removing the admin property of that user made the schema inaccessible after re-opening the database. Fixed.
Renaming or dropping a user with a schema, or removing the admin property of that user made the schema inaccessible after re-opening the database. Fixed.
@changelog_1242_li
@changelog_1246_li
The H2 Console now also support the command line option -ifExists when started from the Server tool, but only when connecting to H2 databases.
The H2 Console now also support the command line option -ifExists when started from the Server tool, but only when connecting to H2 databases.
@changelog_1243_li
@changelog_1247_li
Duplicate column names were not detected when renaming columns. Fixed.
Duplicate column names were not detected when renaming columns. Fixed.
@changelog_1244_li
@changelog_1248_li
The console did not display multiple embedded spaces in text correctly. Fixed.
The console did not display multiple embedded spaces in text correctly. Fixed.
@changelog_1245_li
@changelog_1249_li
Google Android support: use 'ant codeswitchAndroid' to switch the source code to Android.
Google Android support: use 'ant codeswitchAndroid' to switch the source code to Android.
@changelog_1246_li
@changelog_1250_li
Values of type ARRAY are now sorted as in PostgreSQL.
Values of type ARRAY are now sorted as in PostgreSQL.
@changelog_1247_li
@changelog_1251_li
In the cluster mode, could not connect if only one server was running (last release only). Fixed.
In the cluster mode, could not connect if only one server was running (last release only). Fixed.
@changelog_1248_li
@changelog_1252_li
The performance of large CSV operations has been improved.
The performance of large CSV operations has been improved.
@changelog_1249_li
@changelog_1253_li
Now using custom toString() for most JDBC objects and commands.
Now using custom toString() for most JDBC objects and commands.
@changelog_1250_li
@changelog_1254_li
Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
@changelog_1251_li
@changelog_1255_li
CSV: Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
CSV: Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
@changelog_1252_li
@changelog_1256_li
A patch for Apache DDL Utils is available at https://issues.apache.org/jira/browse/DDLUTILS-185
A patch for Apache DDL Utils is available at https://issues.apache.org/jira/browse/DDLUTILS-185
@changelog_1253_li
@changelog_1257_li
The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
@changelog_1254_li
@changelog_1258_li
Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot!
Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot!
@changelog_1255_li
@changelog_1259_li
Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
@changelog_1256_h2
@changelog_1260_h2
Version 1.0.61 (2007-11-10)
Version 1.0.61 (2007-11-10)
@changelog_1257_li
@changelog_1261_li
The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
@changelog_1258_li
@changelog_1262_li
Added more tests. The code coverage is now at 83%.
Added more tests. The code coverage is now at 83%.
@changelog_1259_li
@changelog_1263_li
ResultSetMetaData.getColumnDisplaySize was calculated as the longest display size for the given result set, but should be the maximum size that fits in the column. Fixed.
ResultSetMetaData.getColumnDisplaySize was calculated as the longest display size for the given result set, but should be the maximum size that fits in the column. Fixed.
@changelog_1260_li
@changelog_1264_li
The MODE used to be a global setting, now it is a database level setting.
The MODE used to be a global setting, now it is a database level setting.
@changelog_1261_li
@changelog_1265_li
The database does now always round to the nearest number when converting a floating point to a integer: CAST(1.5 AS INT) will now result in 2, like in PostgreSQL and MySQL.
The database does now always round to the nearest number when converting a floating point to a integer: CAST(1.5 AS INT) will now result in 2, like in PostgreSQL and MySQL.
@changelog_1262_li
@changelog_1266_li
Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
@changelog_1263_li
@changelog_1267_li
INSTR, LOCATE: backward searching is not supported by using a negative start position.
INSTR, LOCATE: backward searching is not supported by using a negative start position.
@changelog_1264_li
@changelog_1268_li
Can now open a database stored in a jar or zip file (for example, jdbc:h2:zip:c:/temp/h2.zip!/test).
Can now open a database stored in a jar or zip file (for example, jdbc:h2:zip:c:/temp/h2.zip!/test).
@changelog_1265_li
@changelog_1269_li
Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
@changelog_1266_li
@changelog_1270_li
Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
@changelog_1267_li
@changelog_1271_li
Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
@changelog_1268_li
@changelog_1272_li
Solved a Java level deadlock in the DatabaseCloser.
Solved a Java level deadlock in the DatabaseCloser.
@changelog_1269_li
@changelog_1273_li
CREATE SEQUENCE: New option CACHE (number of pre-allocated numbers). New column CACHE in the sequence meta data table. The default cache size is still 32.
CREATE SEQUENCE: New option CACHE (number of pre-allocated numbers). New column CACHE in the sequence meta data table. The default cache size is still 32.
@changelog_1270_li
@changelog_1274_li
MVCC: The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
MVCC: The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
@changelog_1271_h2
@changelog_1275_h2
Version 1.0.60 (2007-10-20)
Version 1.0.60 (2007-10-20)
@changelog_1272_li
@changelog_1276_li
JdbcXAConnection: starting a transaction before getting the connection didn't switch off autocommit.
JdbcXAConnection: starting a transaction before getting the connection didn't switch off autocommit.
@changelog_1273_li
@changelog_1277_li
User defined aggregate functions are not supported.
User defined aggregate functions are not supported.
@changelog_1274_li
@changelog_1278_li
Server.shutdownTcpServer was blocked when first called with force=false and then force=true. Now documentation is improved, and it is no longer blocked.
Server.shutdownTcpServer was blocked when first called with force=false and then force=true. Now documentation is improved, and it is no longer blocked.
@changelog_1275_li
@changelog_1279_li
Stack traces did not include the SQL statement in all cases where they could have. Also, stack traces with SQL statement are now shorter.
Stack traces did not include the SQL statement in all cases where they could have. Also, stack traces with SQL statement are now shorter.
@changelog_1276_li
@changelog_1280_li
Linked tables: now tables in non-default schemas are supported as well
Linked tables: now tables in non-default schemas are supported as well
@changelog_1277_li
@changelog_1281_li
New Italian translation from PierPaolo Ucchino. Thanks a lot!
New Italian translation from PierPaolo Ucchino. Thanks a lot!
@changelog_1278_li
@changelog_1282_li
CSV: New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
CSV: New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
@changelog_1279_li
@changelog_1283_li
Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
@changelog_1280_li
@changelog_1284_li
PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
@changelog_1281_li
@changelog_1285_li
The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
@changelog_1282_li
@changelog_1286_li
CSVREAD, RUNSCRIPT and so on now support URLs as well, using URL.openStream(). Example: select * from csvread('jar:file:///c:/temp/test.jar!/test.csv');
CSVREAD, RUNSCRIPT and so on now support URLs as well, using URL.openStream(). Example: select * from csvread('jar:file:///c:/temp/test.jar!/test.csv');
@changelog_1283_h2
@changelog_1287_h2
Version 1.0.59 (2007-10-03)
Version 1.0.59 (2007-10-03)
@changelog_1284_li
@changelog_1288_li
When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
@changelog_1285_li
@changelog_1289_li
If the process was killed while the database was running, sometimes the database could not be opened ('double allocation') except when the system property h2.check was set to false. Fixed.
If the process was killed while the database was running, sometimes the database could not be opened ('double allocation') except when the system property h2.check was set to false. Fixed.
@changelog_1286_li
@changelog_1290_li
Multi-threaded kernel (MULTI_THREADED=1): A synchronization problem has been fixed.
Multi-threaded kernel (MULTI_THREADED=1): A synchronization problem has been fixed.
@changelog_1287_li
@changelog_1291_li
A PreparedStatement that was cancelled could not be reused. Fixed.
A PreparedStatement that was cancelled could not be reused. Fixed.
@changelog_1288_li
@changelog_1292_li
H2 Console: Progress information when logging into a H2 embedded database (useful when opening a database is slow).
H2 Console: Progress information when logging into a H2 embedded database (useful when opening a database is slow).
@changelog_1289_li
@changelog_1293_li
When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
@changelog_1290_li
@changelog_1294_li
Fulltext search is now documented (in the Tutorial).
Fulltext search is now documented (in the Tutorial).
@changelog_1291_li
@changelog_1295_li
The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
@changelog_1292_li
@changelog_1296_li
When creating a table using CREATE TABLE .. AS SELECT, the precision for some data types (for example VARCHAR) was set to the default precision. Fixed.
When creating a table using CREATE TABLE .. AS SELECT, the precision for some data types (for example VARCHAR) was set to the default precision. Fixed.
@changelog_1293_li
@changelog_1297_li
When using the (undocumented) in-memory file system (jdbc:h2:memFS:x or jdbc:h2:memLZF:x), and using multiple connections, a ConcurrentModificationException could occur. Fixed.
When using the (undocumented) in-memory file system (jdbc:h2:memFS:x or jdbc:h2:memLZF:x), and using multiple connections, a ConcurrentModificationException could occur. Fixed.
@changelog_1294_li
@changelog_1298_li
REGEXP compatibility: So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
REGEXP compatibility: So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
@changelog_1295_li
@changelog_1299_li
SCRIPT: the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
SCRIPT: the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
@changelog_1296_li
@changelog_1300_li
When using a subquery with group by as a table, some columns could not be used in the where condition in the outer query. Example: SELECT * FROM (SELECT ID, COUNT(*) C FROM TEST) WHERE C > 100. Fixed.
When using a subquery with group by as a table, some columns could not be used in the where condition in the outer query. Example: SELECT * FROM (SELECT ID, COUNT(*) C FROM TEST) WHERE C > 100. Fixed.
@changelog_1297_li
@changelog_1301_li
Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
@changelog_1298_li
@changelog_1302_li
Compatibility: comparing columns with constants that are out of range does not throw an exception.
Compatibility: comparing columns with constants that are out of range does not throw an exception.
@changelog_1299_h2
@changelog_1303_h2
Version 1.0.58 (2007-09-15)
Version 1.0.58 (2007-09-15)
@changelog_1300_li
@changelog_1304_li
System.exit is no longer called by the WebServer, the Console and the Server tool (except to set the exit code if required). This is important when using OSGi.
System.exit is no longer called by the WebServer, the Console and the Server tool (except to set the exit code if required). This is important when using OSGi.
@changelog_1301_li
@changelog_1305_li
Optimization for independent subqueries. For example, this query can now an index: SELECT * FROM TEST WHERE ID = (SELECT MAX(ID) FROM TEST) This can be disabled by setting the system property h2.optimizeSubqueryCache to false.
Optimization for independent subqueries. For example, this query can now an index: SELECT * FROM TEST WHERE ID = (SELECT MAX(ID) FROM TEST) This can be disabled by setting the system property h2.optimizeSubqueryCache to false.
@changelog_1302_li
@changelog_1306_li
The explain plan now says: /* direct lookup query */ if the query can be processed directly without reading rows, for example when using MIN(indexed column), MAX(indexed column), or COUNT(*).
The explain plan now says: /* direct lookup query */ if the query can be processed directly without reading rows, for example when using MIN(indexed column), MAX(indexed column), or COUNT(*).
@changelog_1303_li
@changelog_1307_li
When using IFNULL, NULLIF, COALESCE, LEAST, or GREATEST, and the first parameter was ?, an exception was thrown. Now the highest data type of all parameters is used.
When using IFNULL, NULLIF, COALESCE, LEAST, or GREATEST, and the first parameter was ?, an exception was thrown. Now the highest data type of all parameters is used.
@changelog_1304_li
@changelog_1308_li
When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
@changelog_1305_li
@changelog_1309_li
Maven 2: new version are now automatically synced with the central repositories.
Maven 2: new version are now automatically synced with the central repositories.
@changelog_1306_li
@changelog_1310_li
The default value for MAX_MEMORY_UNDO is now 100000.
The default value for MAX_MEMORY_UNDO is now 100000.
@changelog_1307_li
@changelog_1311_li
The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
@changelog_1308_li
@changelog_1312_li
Oracle compatibility: SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
Oracle compatibility: SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
@changelog_1309_li
@changelog_1313_li
After deleting data, empty space in the database files was not efficiently reused (but it was reused when opening the database). This has been fixed.
After deleting data, empty space in the database files was not efficiently reused (but it was reused when opening the database). This has been fixed.
@changelog_1310_li
@changelog_1314_li
About 230 bytes per database was leaked. This is a problem for applications opening and closing many thousand databases. The main problem: a shutdown hook was added but never removed. Fixed. In JDK 1.4, there is <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4197876">an additionally problem</a> . A workaround has been implemented.
About 230 bytes per database was leaked. This is a problem for applications opening and closing many thousand databases. The main problem: a shutdown hook was added but never removed. Fixed. In JDK 1.4, there is <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4197876">an additionally problem</a> . A workaround has been implemented.
@changelog_1311_li
@changelog_1315_li
Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
@changelog_1312_li
@changelog_1316_li
Using spaces in column and table aliases was not supported when used inside a view or temporary view.
Using spaces in column and table aliases was not supported when used inside a view or temporary view.
@changelog_1313_li
@changelog_1317_li
The version (build) number is now included in the manifest file.
The version (build) number is now included in the manifest file.
@changelog_1314_li
@changelog_1318_li
In some systems, SecureRandom.generateSeed is very slow (taking one minute or more). For those cases, an alternative method is used that takes less than one second.
In some systems, SecureRandom.generateSeed is very slow (taking one minute or more). For those cases, an alternative method is used that takes less than one second.
@changelog_1315_li
@changelog_1319_li
The database file sizes are now increased at most 32 MB at any time.
The database file sizes are now increased at most 32 MB at any time.
@changelog_1316_li
@changelog_1320_li
New method DatabaseEventListener.opened that is called just after opening a database.
New method DatabaseEventListener.opened that is called just after opening a database.
@changelog_1317_li
@changelog_1321_li
When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
@changelog_1318_li
@changelog_1322_li
A database can now be opened even if class of a user defined function is not in the classpath. Trying to call the function will throws an exception.
A database can now be opened even if class of a user defined function is not in the classpath. Trying to call the function will throws an exception.
@changelog_1319_li
@changelog_1323_li
User defined functions and constants may not overload built-in functions and constants. This didn't work before, but now trying to create such an object will fail.
User defined functions and constants may not overload built-in functions and constants. This didn't work before, but now trying to create such an object will fail.
@changelog_1320_li
@changelog_1324_li
Improved MultiDimension tool (for spatial queries): in the last few releases the tool was actually slower than using a regular query (because index lookup got faster, and because the tool didn't support prepared statements) Now the tool generates prepared statements, and the performance is better again (about 5 times faster for a reasonable amount of data).
Improved MultiDimension tool (for spatial queries): in the last few releases the tool was actually slower than using a regular query (because index lookup got faster, and because the tool didn't support prepared statements) Now the tool generates prepared statements, and the performance is better again (about 5 times faster for a reasonable amount of data).
@changelog_1321_li
@changelog_1325_li
Adding a foreign key or when re-enabling referential integrity for a table failed when checking was enabled and the reference contained NULL.
Adding a foreign key or when re-enabling referential integrity for a table failed when checking was enabled and the reference contained NULL.
@changelog_1322_li
@changelog_1326_li
For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
@changelog_1323_li
@changelog_1327_li
Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
@download_1000_h1
@download_1000_h1
...
@@ -7916,7 +7928,7 @@ This function will call System.exit on the server. This function should be calle
...
@@ -7916,7 +7928,7 @@ This function will call System.exit on the server. This function should be calle
Using Hibernate
Using Hibernate
@tutorial_1090_p
@tutorial_1090_p
This database supports Hibernate version 3.1 and newer. You can use the HSQLDB Dialect, or the native H2 Dialect that is available in the file src/tools/org/h2/tools/hibernate/H2Dialect.txt. The H2 dialect is included in newer version of Hibernate. For versions where the dialect is missing, you need to copy the file into the folder src\org\hibernate\dialect (Hibernate 3.1), rename it to H2Dialect.java and re-compile hibernate.
This database supports Hibernate version 3.1 and newer. You can use the HSQLDB Dialect, or the native H2 Dialect. Unfortunately the H2 Dialect included in Hibernate is buggy. A <a href="http://opensource.atlassian.com/projects/hibernate/browse/HHH-3401">patch for Hibernate</a> has been submitted. The dialect for the newest version of Hibernate is also available at src/tools/org/hibernate/dialect/H2Dialect.java.txt. You can rename it to H2Dialect.java and include this as a patch in your application.
1000行以上のresult setのために、結果はディスクにバッファーされます。 もし ORDER BY が使用されていたら、ソートは、外部ソートアルゴリズムを使用して 完了しています。このケースでは、それぞれの行のブロックはクイックソートを使用してソートされ、 ディスクに書き込まれています; データを読み込んでいる時、ブロックは一緒にマージされます。
#For large result set, the result is buffered to disk. The threshold can be defined using the statement SET MAX_MEMORY_ROWS. If ORDER BY is used, the sorting is done using an external sort algorithm. In this case, each block of rows is sorted using quick sort, then written to disk; when reading the data, the blocks are merged together.
@advanced_1030_h2
@advanced_1030_h2
大きなオブジェクト
大きなオブジェクト
...
@@ -1051,969 +1051,981 @@ Centralリポジトリの利用
...
@@ -1051,969 +1051,981 @@ Centralリポジトリの利用
#Next Version (unreleased)
#Next Version (unreleased)
@changelog_1002_li
@changelog_1002_li
#H2 Console: The progress display when opening a database has been improved.
#ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
@changelog_1003_li
@changelog_1003_li
#The error message when the server doesn't start has been improved.
#Fixed the Oracle mode: Oracle allows multiple rows only where all columns of the unique index are NULL.
@changelog_1004_li
@changelog_1004_li
#Key values can now be changed in updatable result sets.
#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_1005_li
@changelog_1005_li
#Changes in updatable result sets are now visible even when resetting the result set.
#ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
@changelog_1006_li
@changelog_1006_li
#Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
#H2 Console: The progress display when opening a database has been improved.
@changelog_1007_li
@changelog_1007_li
#The error message when the server doesn't start has been improved.
@changelog_1008_li
#Key values can now be changed in updatable result sets.
@changelog_1009_li
#Changes in updatable result sets are now visible even when resetting the result set.
@changelog_1010_li
#Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
@changelog_1011_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_1008_h2
@changelog_1012_h2
#Version 1.0.75 (2008-07-14)
#Version 1.0.75 (2008-07-14)
@changelog_1009_li
@changelog_1013_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_1010_li
@changelog_1014_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_1011_li
@changelog_1015_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_1012_li
@changelog_1016_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_1013_li
@changelog_1017_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_1014_li
@changelog_1018_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_1015_li
@changelog_1019_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_1016_li
@changelog_1020_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_1017_li
@changelog_1021_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_1018_li
@changelog_1022_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_1019_li
@changelog_1023_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_1020_li
@changelog_1024_li
#Stopping a WebServer didn't always work. Fixed.
#Stopping a WebServer didn't always work. Fixed.
@changelog_1021_h2
@changelog_1025_h2
#Version 1.0.74 (2008-06-21)
#Version 1.0.74 (2008-06-21)
@changelog_1022_li
@changelog_1026_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_1023_li
@changelog_1027_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_1024_li
@changelog_1028_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_1025_li
@changelog_1029_li
#The ChangePassword tool is now called ChangeFileEncryption.
#The ChangePassword tool is now called ChangeFileEncryption.
@changelog_1026_li
@changelog_1030_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_1027_li
@changelog_1031_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_1028_li
@changelog_1032_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_1029_li
@changelog_1033_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_1030_li
@changelog_1034_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_1031_li
@changelog_1035_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_1032_li
@changelog_1036_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_1033_li
@changelog_1037_li
#Deadlocks are now detected. One transaction is rolled back automatically.
#Deadlocks are now detected. One transaction is rolled back automatically.
@changelog_1034_li
@changelog_1038_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_1035_li
@changelog_1039_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!
@changelog_1036_h2
@changelog_1040_h2
#Version 1.0.73 (2008-05-31)
#Version 1.0.73 (2008-05-31)
@changelog_1037_li
@changelog_1041_li
#ParameterMetaData now returns the right data type for most conditions, as in WHERE ID=?.
#ParameterMetaData now returns the right data type for most conditions, as in WHERE ID=?.
@changelog_1038_li
@changelog_1042_li
#The table SYSTEM_RANGE now supports expressions and parameters.
#The table SYSTEM_RANGE now supports expressions and parameters.
@changelog_1039_li
@changelog_1043_li
#New column INFORMATION_SCHEMA.CONSTRAINTS.UNIQUE_INDEX_NAME that contains the name of the unique index used to enforce this constraint, if there is such an index.
#New column INFORMATION_SCHEMA.CONSTRAINTS.UNIQUE_INDEX_NAME that contains the name of the unique index used to enforce this constraint, if there is such an index.
@changelog_1040_li
@changelog_1044_li
#SET QUERY_TIMEOUT and Statement.setQueryTimeout no longer commits a transaction. The same applies to SET @VARIABLE, SET LOCK_TIMEOUT, SET TRACE_LEVEL_*, SET THROTTLE, and SET PATH.
#SET QUERY_TIMEOUT and Statement.setQueryTimeout no longer commits a transaction. The same applies to SET @VARIABLE, SET LOCK_TIMEOUT, SET TRACE_LEVEL_*, SET THROTTLE, and SET PATH.
@changelog_1041_li
@changelog_1045_li
#The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
#The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
@changelog_1042_li
@changelog_1046_li
#MySQL compatibility: auto_increment column are no longer automatically converted to primary key columns.
#MySQL compatibility: auto_increment column are no longer automatically converted to primary key columns.
@changelog_1043_li
@changelog_1047_li
#PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
#PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
@changelog_1044_li
@changelog_1048_li
#Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
#Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
@changelog_1045_li
@changelog_1049_li
#A role or right can now be granted or revoked multiple times without getting an exception.
#A role or right can now be granted or revoked multiple times without getting an exception.
@changelog_1046_li
@changelog_1050_li
#Infinite numbers in SQL scripts are listed as POWER(0, -1)), negative infinite as (-POWER(0, -1)), and NaN (not a number) as SQRT(-1).
#Infinite numbers in SQL scripts are listed as POWER(0, -1)), negative infinite as (-POWER(0, -1)), and NaN (not a number) as SQRT(-1).
@changelog_1047_li
@changelog_1051_li
#The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
#The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
@changelog_1048_li
@changelog_1052_li
#The fulltext search did not support CLOB data types.
#The fulltext search did not support CLOB data types.
@changelog_1049_li
@changelog_1053_li
#If the drive with the database files was disconnected or unmounted while writing, sometimes a stack overflow exception was thrown instead of a IO exception.
#If the drive with the database files was disconnected or unmounted while writing, sometimes a stack overflow exception was thrown instead of a IO exception.
@changelog_1050_li
@changelog_1054_li
#The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
#The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
@changelog_1051_li
@changelog_1055_li
#If the password was passed as a char array, it was kept in an internal buffer longer than required. Theoretically the password could have been stolen if the main memory was swapped to disk before the garbage collection was run.
#If the password was passed as a char array, it was kept in an internal buffer longer than required. Theoretically the password could have been stolen if the main memory was swapped to disk before the garbage collection was run.
@changelog_1052_h2
@changelog_1056_h2
#Version 1.0.72 (2008-05-10)
#Version 1.0.72 (2008-05-10)
@changelog_1053_li
@changelog_1057_li
#Some databases could not be opened when appending ;RECOVER=1 to the database URL.
#Some databases could not be opened when appending ;RECOVER=1 to the database URL.
@changelog_1054_li
@changelog_1058_li
#The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
#The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
@changelog_1055_li
@changelog_1059_li
#Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
#Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
@changelog_1056_li
@changelog_1060_li
#ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
#ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
@changelog_1057_li
@changelog_1061_li
#H2 Shell: DESCRIBE now supports an schema name.
#H2 Shell: DESCRIBE now supports an schema name.
@changelog_1058_li
@changelog_1062_li
#A subset of the PostgreSQL 'dollar quoting' feature is now supported.
#A subset of the PostgreSQL 'dollar quoting' feature is now supported.
@changelog_1059_li
@changelog_1063_li
#SLF4J is now supported by using adding TRACE_LEVEL_FILE=4 to the database URL.
#SLF4J is now supported by using adding TRACE_LEVEL_FILE=4 to the database URL.
@changelog_1060_li
@changelog_1064_li
#The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
#The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
@changelog_1061_li
@changelog_1065_li
#Triggers are no longer executed when changing the table structure (ALTER TABLE).
#Triggers are no longer executed when changing the table structure (ALTER TABLE).
@changelog_1062_li
@changelog_1066_li
#When setting BLOB or CLOB values larger than 65 KB using a remote connection, temporary files were kept on the client longer than required (until the connection was closed or the object is garbage collected). Now they are removed as soon as the PreparedStatement is closed, or when the value is overwritten.
#When setting BLOB or CLOB values larger than 65 KB using a remote connection, temporary files were kept on the client longer than required (until the connection was closed or the object is garbage collected). Now they are removed as soon as the PreparedStatement is closed, or when the value is overwritten.
@changelog_1063_li
@changelog_1067_li
#Statements can now be cancelled remotely (when using remote connections).
#Statements can now be cancelled remotely (when using remote connections).
@changelog_1064_li
@changelog_1068_li
#The Shell tool now uses java.io.Console to read the password when using JDK 1.6
#The Shell tool now uses java.io.Console to read the password when using JDK 1.6
@changelog_1065_li
@changelog_1069_li
#When using read-only databases and setting LOG=2, an exception was written to the trace file when closing the database. Fixed.
#When using read-only databases and setting LOG=2, an exception was written to the trace file when closing the database. Fixed.
@changelog_1066_h2
@changelog_1070_h2
#Version 1.0.71 (2008-04-25)
#Version 1.0.71 (2008-04-25)
@changelog_1067_li
@changelog_1071_li
#H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
#H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
@changelog_1068_li
@changelog_1072_li
#Sometimes an exception 'File ID mismatch' or 'try to add a record twice' occurred after large records (8 KB or larger) are updated or deleted. See also http://code.google.com/p/h2database/issues/detail?id=22
#Sometimes an exception 'File ID mismatch' or 'try to add a record twice' occurred after large records (8 KB or larger) are updated or deleted. See also http://code.google.com/p/h2database/issues/detail?id=22
@changelog_1069_li
@changelog_1073_li
#H2 Console: The tools can now be translated (it didn't work in the last release).
#H2 Console: The tools can now be translated (it didn't work in the last release).
@changelog_1070_li
@changelog_1074_li
#New traditional Chinese translation. Thanks a lot to Derek Chao!
#New traditional Chinese translation. Thanks a lot to Derek Chao!
@changelog_1071_li
@changelog_1075_li
#Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
#Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
@changelog_1072_h2
@changelog_1076_h2
#Version 1.0.70 (2008-04-20)
#Version 1.0.70 (2008-04-20)
@changelog_1073_li
@changelog_1077_li
#The plan is to dual-license H2. The additional license is EPL (Eclipse Public License). The current license (MPL, Mozilla Public License) will stay. Current users are not affected because they can keep MPL. EPL is very similar to MPL, the only bigger difference is related to patents (EPL is a bit more business friendly in this regard). See also http://opensource.org/licenses/eclipse-1.0.php, http://www.eclipse.org/legal/eplfaq.php (FAQ), http://blogs.zdnet.com/Burnette/?p=131
#The plan is to dual-license H2. The additional license is EPL (Eclipse Public License). The current license (MPL, Mozilla Public License) will stay. Current users are not affected because they can keep MPL. EPL is very similar to MPL, the only bigger difference is related to patents (EPL is a bit more business friendly in this regard). See also http://opensource.org/licenses/eclipse-1.0.php, http://www.eclipse.org/legal/eplfaq.php (FAQ), http://blogs.zdnet.com/Burnette/?p=131
@changelog_1074_li
@changelog_1078_li
#Multi version concurrency (MVCC): when a row was updated, and the updated column was not indexed, this update was visible sometimes for other sessions even if it was not committed.
#Multi version concurrency (MVCC): when a row was updated, and the updated column was not indexed, this update was visible sometimes for other sessions even if it was not committed.
@changelog_1075_li
@changelog_1079_li
#Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
#Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
@changelog_1076_li
@changelog_1080_li
#New system property h2.enableAnonymousSSL (default: true) to enable anonymous SSL connections.
#New system property h2.enableAnonymousSSL (default: true) to enable anonymous SSL connections.
@changelog_1077_li
@changelog_1081_li
#The precision if SUBSTR is now calculated if possible.
#The precision if SUBSTR is now calculated if possible.
@changelog_1078_li
@changelog_1082_li
#The autocomplete in the H2 Console has been improved a bit.
#The autocomplete in the H2 Console has been improved a bit.
@changelog_1079_li
@changelog_1083_li
#The tools in the H2 Console are now translatable.
#The tools in the H2 Console are now translatable.
@changelog_1080_li
@changelog_1084_li
#The servlet and lucene jar files are now automatically downloaded when building.
#The servlet and lucene jar files are now automatically downloaded when building.
@changelog_1081_li
@changelog_1085_li
#The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
#The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
@changelog_1082_li
@changelog_1086_li
#Started to write a Ant replacement ('JAnt') that uses pure Java build definitions. Advantages: ability to debug the build, extensible, flexible, no XML, a bit faster. Future plan: support creating custom h2 distributions (for embedded use). Maybe create a new project 'Jant' or 'Javen' if other people are interested.
#Started to write a Ant replacement ('JAnt') that uses pure Java build definitions. Advantages: ability to debug the build, extensible, flexible, no XML, a bit faster. Future plan: support creating custom h2 distributions (for embedded use). Maybe create a new project 'Jant' or 'Javen' if other people are interested.
@changelog_1083_li
@changelog_1087_li
#The jar file is now about 10% smaller because the variable debugging info is no longer included. The source file and line number debugging info is still included. If required, the jar file size of the full version can be further reduced to about 720 KB using 'build jarSmall' or even more by removing unneeded components.
#The jar file is now about 10% smaller because the variable debugging info is no longer included. The source file and line number debugging info is still included. If required, the jar file size of the full version can be further reduced to about 720 KB using 'build jarSmall' or even more by removing unneeded components.
@changelog_1084_li
@changelog_1088_li
#Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome!
#Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome!
@changelog_1085_li
@changelog_1089_li
#Databases in zip files: large queries are now supported. Temp files are created in the temp directory if required. The documentation how to create the zip file has been corrected.
#Databases in zip files: large queries are now supported. Temp files are created in the temp directory if required. The documentation how to create the zip file has been corrected.
#The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
#The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
@changelog_1088_li
@changelog_1092_li
#Optimization for MIN() and MAX() when using MVCC.
#Optimization for MIN() and MAX() when using MVCC.
@changelog_1089_li
@changelog_1093_li
#To protect against remote brute force password attacks, the delay after each unsuccessful login now gets double as long. New system properties h2.delayWrongPasswordMin and h2.delayWrongPasswordMax.
#To protect against remote brute force password attacks, the delay after each unsuccessful login now gets double as long. New system properties h2.delayWrongPasswordMin and h2.delayWrongPasswordMax.
@changelog_1090_li
@changelog_1094_li
#After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
#After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
@changelog_1091_li
@changelog_1095_li
#Adding a IDENTITY column to a table with data threw a lock timeout.
#Adding a IDENTITY column to a table with data threw a lock timeout.
@changelog_1092_li
@changelog_1096_li
#OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
#OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
@changelog_1093_li
@changelog_1097_li
#The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
#The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
@changelog_1094_li
@changelog_1098_li
#The ConvertTraceFile tool now generates SQL statement statistics at the end of the SQL script file (similar to the profiling data generated when using java -Xrunhprof).
#The ConvertTraceFile tool now generates SQL statement statistics at the end of the SQL script file (similar to the profiling data generated when using java -Xrunhprof).
@changelog_1095_li
@changelog_1099_li
#Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
#Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
@changelog_1096_h2
@changelog_1100_h2
#Version 1.0.69 (2008-03-29)
#Version 1.0.69 (2008-03-29)
@changelog_1097_li
@changelog_1101_li
#Most command line tools can now be called from within the H2 Console.
#Most command line tools can now be called from within the H2 Console.
@changelog_1098_li
@changelog_1102_li
#A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
#A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
@changelog_1099_li
@changelog_1103_li
#The command line options in the tools have changed: instead of '-log true' now '-trace' is used. Also, '-ifExists', '-tcpSSL' and '-tcpAllowOthers' and so on have changed: now the 'true' is no longer needed. The old behavior is still supported.
#The command line options in the tools have changed: instead of '-log true' now '-trace' is used. Also, '-ifExists', '-tcpSSL' and '-tcpAllowOthers' and so on have changed: now the 'true' is no longer needed. The old behavior is still supported.
@changelog_1100_li
@changelog_1104_li
#New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
#New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
@changelog_1101_li
@changelog_1105_li
#Performance was very slow when using LOG=2 and deleting or updating all rows of a table in a loop. Fixed.
#Performance was very slow when using LOG=2 and deleting or updating all rows of a table in a loop. Fixed.
@changelog_1102_li
@changelog_1106_li
#ALTER TABLE or CREATE TABLE now support parameters for the password field.
#ALTER TABLE or CREATE TABLE now support parameters for the password field.
@changelog_1103_li
@changelog_1107_li
#The linear hash has been removed. It was always slower than the b-tree index, and there were some bugs that would be hard to fix.
#The linear hash has been removed. It was always slower than the b-tree index, and there were some bugs that would be hard to fix.
@changelog_1104_li
@changelog_1108_li
#TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
#TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
@changelog_1105_li
@changelog_1109_li
#Fulltext search (native implementation): The words table is no longer an in-memory table because this caused memory problems in some cases.
#Fulltext search (native implementation): The words table is no longer an in-memory table because this caused memory problems in some cases.
@changelog_1106_li
@changelog_1110_li
#It was possible to create a role with the name as an existing user (but not vice versa). This is not allowed any more.
#It was possible to create a role with the name as an existing user (but not vice versa). This is not allowed any more.
@changelog_1107_li
@changelog_1111_li
#The recovery tool didn't work correctly for tables without rows.
#The recovery tool didn't work correctly for tables without rows.
@changelog_1108_li
@changelog_1112_li
#For years below 1, the YEAR method didn't return the correct value, and the conversion from date and timestamp to varchar was incorrect.
#For years below 1, the YEAR method didn't return the correct value, and the conversion from date and timestamp to varchar was incorrect.
@changelog_1109_li
@changelog_1113_li
#CSVWRITE caused a NullPointerException when not specifying a nullString.
#CSVWRITE caused a NullPointerException when not specifying a nullString.
@changelog_1110_li
@changelog_1114_li
#When a log file switch occurred just after a truncate table or drop table statement, the database could not be started normally (RECOVER=1 was required). Fixed.
#When a log file switch occurred just after a truncate table or drop table statement, the database could not be started normally (RECOVER=1 was required). Fixed.
@changelog_1111_li
@changelog_1115_li
#When a log file switch occurred in the middle of a sequence flush (sequences are only flushed every 32 values by default), the sequence value was lost. Fixed.
#When a log file switch occurred in the middle of a sequence flush (sequences are only flushed every 32 values by default), the sequence value was lost. Fixed.
@changelog_1112_li
@changelog_1116_li
#Altering a sequence didn't unlock the system table when autocommit switched off.
#Altering a sequence didn't unlock the system table when autocommit switched off.
@changelog_1113_h2
@changelog_1117_h2
#Version 1.0.68 (2008-03-18)
#Version 1.0.68 (2008-03-18)
@changelog_1114_li
@changelog_1118_li
#Very large SELECT DISTINCT and UNION EXCEPT queries are now supported, however this feature is disabled by default. To enable it, set the system property h2.maxMemoryRowsDistinct to a lower value, for example 10000.
#Very large SELECT DISTINCT and UNION EXCEPT queries are now supported, however this feature is disabled by default. To enable it, set the system property h2.maxMemoryRowsDistinct to a lower value, for example 10000.
@changelog_1115_li
@changelog_1119_li
#A error is now thrown when trying to call a method inside a trigger that implicitly commits the current transaction, if an object is locked.
#A error is now thrown when trying to call a method inside a trigger that implicitly commits the current transaction, if an object is locked.
@changelog_1116_li
@changelog_1120_li
#Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
#Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
@changelog_1117_li
@changelog_1121_li
#ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
#ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
@changelog_1118_li
@changelog_1122_li
#New system property h2.aliasColumnName. When enabled, aliased columns (as in SELECT ID AS I FROM TEST) return the real table and column name in ResultSetMetaData.getTableName() and getColumnName(). This is disabled by default for compatibility with other databases (HSQLDB, Apache Derby, PostgreSQL, some version of MySQL). In version 1.1 this setting will be enabled.
#New system property h2.aliasColumnName. When enabled, aliased columns (as in SELECT ID AS I FROM TEST) return the real table and column name in ResultSetMetaData.getTableName() and getColumnName(). This is disabled by default for compatibility with other databases (HSQLDB, Apache Derby, PostgreSQL, some version of MySQL). In version 1.1 this setting will be enabled.
@changelog_1119_li
@changelog_1123_li
#When using encrypted databases, and using the wrong file password, the log file was renamed if the database was not already open. Fixed.
#When using encrypted databases, and using the wrong file password, the log file was renamed if the database was not already open. Fixed.
@changelog_1120_li
@changelog_1124_li
#Improved performance when using lob files in directories (however this is still disabled by default)
#Improved performance when using lob files in directories (however this is still disabled by default)
@changelog_1121_li
@changelog_1125_li
#H2 Console: autocomplete didn't work with very large scripts. Fixed.
#H2 Console: autocomplete didn't work with very large scripts. Fixed.
@changelog_1122_li
@changelog_1126_li
#Fulltext search: new method SEARCH_DATA that returns the column names and primary keys as arrays.
#Fulltext search: new method SEARCH_DATA that returns the column names and primary keys as arrays.
@changelog_1123_li
@changelog_1127_li
#New experimental optimization for GROUP BY queries if an index can be used that matches the group by columns. To enable this optimization, set the system property h2.optimizeGroupSorted to true.
#New experimental optimization for GROUP BY queries if an index can be used that matches the group by columns. To enable this optimization, set the system property h2.optimizeGroupSorted to true.
@changelog_1124_li
@changelog_1128_li
#When using multi-version concurrency (MVCC=TRUE), duplicate rows could appear in the result set when running queries with uncommitted changes in the same session.
#When using multi-version concurrency (MVCC=TRUE), duplicate rows could appear in the result set when running queries with uncommitted changes in the same session.
@changelog_1125_li
@changelog_1129_li
#H2 Console: remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
#H2 Console: remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
@changelog_1126_li
@changelog_1130_li
#H2 Console: on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
#H2 Console: on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
@changelog_1127_li
@changelog_1131_li
#H2 Console: the start window works better with IKVM
#H2 Console: the start window works better with IKVM
@changelog_1128_li
@changelog_1132_li
#H2 Console: improved compatibility with Safari (Safari requires keep-alive)
#H2 Console: improved compatibility with Safari (Safari requires keep-alive)
@changelog_1129_li
@changelog_1133_li
#Random: the process didn't stop if generating the random seed using the standard way (SecureRandom.generateSeed) was very slow. Now using a daemon thread to avoid this problem.
#Random: the process didn't stop if generating the random seed using the standard way (SecureRandom.generateSeed) was very slow. Now using a daemon thread to avoid this problem.
@changelog_1130_li
@changelog_1134_li
#SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
#SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
@changelog_1131_li
@changelog_1135_li
#When using a view, the column precision was changed to the default scale for some data types.
#When using a view, the column precision was changed to the default scale for some data types.
@changelog_1132_li
@changelog_1136_li
#CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
#CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
@changelog_1133_li
@changelog_1137_li
#Some long running queries could not be cancelled.
#Some long running queries could not be cancelled.
@changelog_1134_li
@changelog_1138_li
#Queries with many outer join tables were very slow. Fixed.
#Queries with many outer join tables were very slow. Fixed.
@changelog_1135_li
@changelog_1139_li
#The performance of text comparison has been improved when using locale sensitive string comparison (SET COLLATOR). Now CollationKey is used with a LRU cache. The default cache size is 10000, and can be changed using the system property h2.collatorCacheSize. Use 0 to disable the cache.
#The performance of text comparison has been improved when using locale sensitive string comparison (SET COLLATOR). Now CollationKey is used with a LRU cache. The default cache size is 10000, and can be changed using the system property h2.collatorCacheSize. Use 0 to disable the cache.
@changelog_1136_li
@changelog_1140_li
#UPDATE SET column=DEFAULT is now supported.
#UPDATE SET column=DEFAULT is now supported.
@changelog_1137_h2
@changelog_1141_h2
#Version 1.0.67 (2008-02-22)
#Version 1.0.67 (2008-02-22)
@changelog_1138_li
@changelog_1142_li
#New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
#New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
@changelog_1139_li
@changelog_1143_li
#CREATE TABLE AS SELECT now supports specifying the column list and data types.
#CREATE TABLE AS SELECT now supports specifying the column list and data types.
@changelog_1140_li
@changelog_1144_li
#Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
#Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
@changelog_1141_li
@changelog_1145_li
#A user now has all rights on his own local temporary tables.
#A user now has all rights on his own local temporary tables.
@changelog_1142_li
@changelog_1146_li
#The CSV tool now supports a custom lineSeparator.
#The CSV tool now supports a custom lineSeparator.
@changelog_1143_li
@changelog_1147_li
#When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
#When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
@changelog_1144_li
@changelog_1148_li
#The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen!
#The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen!
@changelog_1145_li
@changelog_1149_li
#Databases can now be opened even if trigger classes are not in the classpath. The exception is thrown when trying to fire the trigger.
#Databases can now be opened even if trigger classes are not in the classpath. The exception is thrown when trying to fire the trigger.
@changelog_1146_li
@changelog_1150_li
#Opening databases with ACCESS_MODE_DATA=r is now supported. In this case the database is read-only, but the files don't not need to be read-only.
#Opening databases with ACCESS_MODE_DATA=r is now supported. In this case the database is read-only, but the files don't not need to be read-only.
@changelog_1147_li
@changelog_1151_li
#Security: The database now waits 200 ms before throwing an exception if the user name or password don't match, to slow down dictionary attacks.
#Security: The database now waits 200 ms before throwing an exception if the user name or password don't match, to slow down dictionary attacks.
@changelog_1148_li
@changelog_1152_li
#The value cache is now a soft reference cache. This should help save memory.
#The value cache is now a soft reference cache. This should help save memory.
@changelog_1149_li
@changelog_1153_li
#CREATE INDEX on a table with many rows could run out of memory. Fixed.
#CREATE INDEX on a table with many rows could run out of memory. Fixed.
@changelog_1150_li
@changelog_1154_li
#Large result sets are now a bit faster.
#Large result sets are now a bit faster.
@changelog_1151_li
@changelog_1155_li
#ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
#ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
@changelog_1152_li
@changelog_1156_li
#When setting the base directory on the command line, the user directory prefix ('~') was ignored.
#When setting the base directory on the command line, the user directory prefix ('~') was ignored.
@changelog_1153_li
@changelog_1157_li
#The DbStarter servlet didn't start the TCP listener even if configured.
#The DbStarter servlet didn't start the TCP listener even if configured.
@changelog_1154_li
@changelog_1158_li
#Statement.setQueryTimeout() is now supported.
#Statement.setQueryTimeout() is now supported.
@changelog_1155_li
@changelog_1159_li
#New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
#New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
@changelog_1156_li
@changelog_1160_li
#Changing the transaction log level (SET LOG) is now written to the trace file by default.
#Changing the transaction log level (SET LOG) is now written to the trace file by default.
@changelog_1157_li
@changelog_1161_li
#In a SQL script, primary key constraints are now ordered before foreign key constraints.
#In a SQL script, primary key constraints are now ordered before foreign key constraints.
@changelog_1158_li
@changelog_1162_li
#It was not possible to create a referential constraint to a table in a different schema in some situations.
#It was not possible to create a referential constraint to a table in a different schema in some situations.
@changelog_1159_li
@changelog_1163_li
#The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
#The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
@changelog_1160_h2
@changelog_1164_h2
#Version 1.0.66 (2008-02-02)
#Version 1.0.66 (2008-02-02)
@changelog_1161_li
@changelog_1165_li
#There is a new online error analyzer tool.
#There is a new online error analyzer tool.
@changelog_1162_li
@changelog_1166_li
#H2 Console: stack traces are now links to the source code in the source repository (H2 database only).
#H2 Console: stack traces are now links to the source code in the source repository (H2 database only).
@changelog_1163_li
@changelog_1167_li
#CHAR data type equals comparison was case insensitive instead of case sensitive.
#CHAR data type equals comparison was case insensitive instead of case sensitive.
@changelog_1164_li
@changelog_1168_li
#The exception 'Value too long for column' now includes the data.
#The exception 'Value too long for column' now includes the data.
@changelog_1165_li
@changelog_1169_li
#The table name was missing in the documentation of CREATE INDEX.
#The table name was missing in the documentation of CREATE INDEX.
@changelog_1166_li
@changelog_1170_li
#Better support for IKVM (www.ikvm.net): the H2 Console now opens a browser window.
#Better support for IKVM (www.ikvm.net): the H2 Console now opens a browser window.
@changelog_1167_li
@changelog_1171_li
#The cache size was not correctly calculated for tables with large objects (specially if compression is used). This could lead to out-of-memory exceptions.
#The cache size was not correctly calculated for tables with large objects (specially if compression is used). This could lead to out-of-memory exceptions.
@changelog_1168_li
@changelog_1172_li
#The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
#The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
@changelog_1169_li
@changelog_1173_li
#The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
#The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
@changelog_1170_li
@changelog_1174_li
#The acting as PostgreSQL server, when a base directory was set, and the H2 Console was started as well, the base directory was applied twice.
#The acting as PostgreSQL server, when a base directory was set, and the H2 Console was started as well, the base directory was applied twice.
@changelog_1171_li
@changelog_1175_li
#Calling EXTRACT(HOUR FROM ...) or EXTRACT(HH FROM ...) returned the wrong values (0 to 11 instead of 0 to 23). All other tested databases return values from 0 to 23. Please check if your application relies on the old behavior before upgrading.
#Calling EXTRACT(HOUR FROM ...) or EXTRACT(HH FROM ...) returned the wrong values (0 to 11 instead of 0 to 23). All other tested databases return values from 0 to 23. Please check if your application relies on the old behavior before upgrading.
@changelog_1172_li
@changelog_1176_li
#For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
#For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
@changelog_1173_li
@changelog_1177_li
#Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
#Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
@changelog_1174_li
@changelog_1178_li
#Variables: large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
#Variables: large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
@changelog_1175_li
@changelog_1179_li
#Fulltext search is now supported in named in-memory databases.
#Fulltext search is now supported in named in-memory databases.
@changelog_1176_li
@changelog_1180_li
#H2 Console: multiple consecutive spaces in the setting name did not work. Fixed.
#H2 Console: multiple consecutive spaces in the setting name did not work. Fixed.
@changelog_1177_h2
@changelog_1181_h2
#Version 1.0.65 (2008-01-18)
#Version 1.0.65 (2008-01-18)
@changelog_1178_li
@changelog_1182_li
#The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
#The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
@changelog_1179_li
@changelog_1183_li
#A recovery bug has been fixed. With older versions, it was necessary to add ;RECOVER=1 to the database URL in cases where it should not have been required.
#A recovery bug has been fixed. With older versions, it was necessary to add ;RECOVER=1 to the database URL in cases where it should not have been required.
@changelog_1180_li
@changelog_1184_li
#The performance for DROP and DROP ALL OBJECTS has been improved.
#The performance for DROP and DROP ALL OBJECTS has been improved.
@changelog_1181_li
@changelog_1185_li
#The ChangePassword API has been improved.
#The ChangePassword API has been improved.
@changelog_1182_li
@changelog_1186_li
#User defined variables are now supported. Examples: SET @VAR=10;CALL @VAR. This can be used for running totals as in: select x, set(@t, ifnull(@t, 0) + x) from system_range(1, 10)
#User defined variables are now supported. Examples: SET @VAR=10;CALL @VAR. This can be used for running totals as in: select x, set(@t, ifnull(@t, 0) + x) from system_range(1, 10)
@changelog_1183_li
@changelog_1187_li
#The Ukrainian translation has been improved.
#The Ukrainian translation has been improved.
@changelog_1184_li
@changelog_1188_li
#CALL statements can now be used in batch updates and called using Statement.executeUpdate.
#CALL statements can now be used in batch updates and called using Statement.executeUpdate.
@changelog_1185_li
@changelog_1189_li
#New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
#New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
@changelog_1186_li
@changelog_1190_li
#The optimizer did not use multi column indexes for range queries in some cases. Fixed.
#The optimizer did not use multi column indexes for range queries in some cases. Fixed.
@changelog_1187_li
@changelog_1191_li
#The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
#The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
@changelog_1188_li
@changelog_1192_li
#The bind IP address can now be set when using multi-homed host (if multiple network adapters are available) using the system property h2.bindAddress.
#The bind IP address can now be set when using multi-homed host (if multiple network adapters are available) using the system property h2.bindAddress.
@changelog_1189_li
@changelog_1193_li
#Batch update: Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
#Batch update: Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
@changelog_1190_li
@changelog_1194_li
#Indexes of unique or foreign constraints where not dropped when the constraint was dropped after altering the table (for example dropping a column). Fixed.
#Indexes of unique or foreign constraints where not dropped when the constraint was dropped after altering the table (for example dropping a column). Fixed.
@changelog_1191_li
@changelog_1195_li
#The performance for large result sets in the server mode has been improved.
#The performance for large result sets in the server mode has been improved.
@changelog_1192_li
@changelog_1196_li
#The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
#The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
@changelog_1193_li
@changelog_1197_li
#The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
#The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
@changelog_1194_li
@changelog_1198_li
#The SCRIPT command did not split up CLOB data correctly. Fixed.
#The SCRIPT command did not split up CLOB data correctly. Fixed.
@changelog_1195_li
@changelog_1199_li
#Optimization for single column distinct queries with an index: select distinct name from test. Can be disabled by setting the system property h2.optimizeDistinct to false.
#Optimization for single column distinct queries with an index: select distinct name from test. Can be disabled by setting the system property h2.optimizeDistinct to false.
@changelog_1196_li
@changelog_1200_li
#DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
#DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
@changelog_1197_li
@changelog_1201_li
#PostgreSQL compatibility: COUNT(T.*) is now supported.
#PostgreSQL compatibility: COUNT(T.*) is now supported.
@changelog_1198_li
@changelog_1202_li
#LIKE comparisons are now faster.
#LIKE comparisons are now faster.
@changelog_1199_li
@changelog_1203_li
#Encrypted databases are now faster.
#Encrypted databases are now faster.
@changelog_1200_h2
@changelog_1204_h2
#Version 1.0.64 (2007-12-27)
#Version 1.0.64 (2007-12-27)
@changelog_1201_li
@changelog_1205_li
#3-way union queries with prepared statement or views could return the wrong results. Fixed.
#3-way union queries with prepared statement or views could return the wrong results. Fixed.
@changelog_1202_li
@changelog_1206_li
#The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
#The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
@changelog_1203_li
@changelog_1207_li
#CSV tool: some escape/separator character combinations did not work. Fixed.
#CSV tool: some escape/separator character combinations did not work. Fixed.
@changelog_1204_li
@changelog_1208_li
#CSV tool: the character # could not be used as a separator when reading.
#CSV tool: the character # could not be used as a separator when reading.
@changelog_1205_li
@changelog_1209_li
#Recovery: when the index file is corrupt, now the database deletes it and re-creates it automatically.
#Recovery: when the index file is corrupt, now the database deletes it and re-creates it automatically.
@changelog_1206_li
@changelog_1210_li
#The MVCC mode did not work well with in-memory databases. Fixed.
#The MVCC mode did not work well with in-memory databases. Fixed.
@changelog_1207_li
@changelog_1211_li
#The FTP server now supports a event listener. Thanks Fulvio Biondi for the help!
#The FTP server now supports a event listener. Thanks Fulvio Biondi for the help!
@changelog_1208_li
@changelog_1212_li
#New system function CANCEL_SESSION to cancel the currently executing statement of another session.
#New system function CANCEL_SESSION to cancel the currently executing statement of another session.
@changelog_1209_li
@changelog_1213_li
#The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
#The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
@changelog_1210_li
@changelog_1214_li
#H2 Console: when editing result sets, columns can now be set to null. The text 'null' must be escaped using '=null'.
#H2 Console: when editing result sets, columns can now be set to null. The text 'null' must be escaped using '=null'.
@changelog_1211_li
@changelog_1215_li
#New built-in functions RPAD and LPAD.
#New built-in functions RPAD and LPAD.
@changelog_1212_li
@changelog_1216_li
#New meta data table INFORMATION_SCHEMA.SESSIONS and LOCKS to get information about active connections and locks. Admins will see all connections, non-admins only their own session.
#New meta data table INFORMATION_SCHEMA.SESSIONS and LOCKS to get information about active connections and locks. Admins will see all connections, non-admins only their own session.
@changelog_1213_li
@changelog_1217_li
#The Ukrainian translation was not working in the last release. Fixed.
#The Ukrainian translation was not working in the last release. Fixed.
@changelog_1214_li
@changelog_1218_li
#Creating many tables (many hundreds) was slow. Fixed.
#Creating many tables (many hundreds) was slow. Fixed.
@changelog_1215_li
@changelog_1219_li
#Opening a database with many indexes (thousands) was slow. Fixed.
#Opening a database with many indexes (thousands) was slow. Fixed.
@changelog_1216_li
@changelog_1220_li
#H2 Console / autocomplete: Ctrl+Space now shows the list in all modes.
#H2 Console / autocomplete: Ctrl+Space now shows the list in all modes.
@changelog_1217_li
@changelog_1221_li
#The method Trigger.init has been changed: the parameters 'before' and 'type', have been added to the init method.
#The method Trigger.init has been changed: the parameters 'before' and 'type', have been added to the init method.
@changelog_1218_li
@changelog_1222_li
#The performance has been improved for ResultSet methods with column name.
#The performance has been improved for ResultSet methods with column name.
@changelog_1219_li
@changelog_1223_li
#A stack trace was thrown if the system did not provide a quick secure random source and if there is no network or the network settings are not configured. Fixed.
#A stack trace was thrown if the system did not provide a quick secure random source and if there is no network or the network settings are not configured. Fixed.
@changelog_1220_li
@changelog_1224_li
#The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar!
#The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar!
@changelog_1221_li
@changelog_1225_li
#Improved debugging support: toString methods of most object now return a meaningful text.
#Improved debugging support: toString methods of most object now return a meaningful text.
@changelog_1222_li
@changelog_1226_li
#The classes DbStarter and WebServlet have been moved to src/main.
#The classes DbStarter and WebServlet have been moved to src/main.
@changelog_1223_li
@changelog_1227_li
#The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
#The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
@changelog_1224_li
@changelog_1228_li
#Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
#Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
@changelog_1225_li
@changelog_1229_li
#The database could not be used in Java applets due to security exceptions. Fixed.
#The database could not be used in Java applets due to security exceptions. Fixed.
@changelog_1226_h2
@changelog_1230_h2
#Version 1.0.63 (2007-12-02)
#Version 1.0.63 (2007-12-02)
@changelog_1227_li
@changelog_1231_li
#The SecurePassword example has been improved.
#The SecurePassword example has been improved.
@changelog_1228_li
@changelog_1232_li
#In time zones where the summer time saving limit is at midnight, some dates do not work in some virtual machines, for example 2007-10-14 in Chile, using the Sun JVM 1.6.0_03-b05. Fixed.
#In time zones where the summer time saving limit is at midnight, some dates do not work in some virtual machines, for example 2007-10-14 in Chile, using the Sun JVM 1.6.0_03-b05. Fixed.
@changelog_1229_li
@changelog_1233_li
#The native fulltext search was not working properly after re-connecting.
#The native fulltext search was not working properly after re-connecting.
@changelog_1230_li
@changelog_1234_li
#Improved FTP server: now the PORT command is supported.
#Improved FTP server: now the PORT command is supported.
@changelog_1231_li
@changelog_1235_li
#Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
#Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
@changelog_1232_li
@changelog_1236_li
#Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin=true
#Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin=true
@changelog_1233_li
@changelog_1237_li
#The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot!
#The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot!
@changelog_1234_li
@changelog_1238_li
#New function TABLE_DISTINCT.
#New function TABLE_DISTINCT.
@changelog_1235_li
@changelog_1239_li
#Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
#Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
@changelog_1236_li
@changelog_1240_li
#Certain setting in the Server didn't work (http://code.google.com/p/h2database/issues/detail?id=7).
#Certain setting in the Server didn't work (http://code.google.com/p/h2database/issues/detail?id=7).
@changelog_1237_h2
@changelog_1241_h2
#Version 1.0.62 (2007-11-25)
#Version 1.0.62 (2007-11-25)
@changelog_1238_li
@changelog_1242_li
#Large updates and deletes are now supported by buffering data to disk if required. The threshold is currently set to 100'000 bytes and can be changed using SET MAX_OPERATION_MEMORY or using by appending ;MAX_OPERATION_MEMORY=.. to the database URL. See also the docs.
#Large updates and deletes are now supported by buffering data to disk if required. The threshold is currently set to 100'000 bytes and can be changed using SET MAX_OPERATION_MEMORY or using by appending ;MAX_OPERATION_MEMORY=.. to the database URL. See also the docs.
@changelog_1239_li
@changelog_1243_li
#MVCC: now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
#MVCC: now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
@changelog_1240_li
@changelog_1244_li
#Referential integrity checks didn't lock the referenced table, and thus could read uncommitted rows of other connections. In that way the referential constraints could get violated (except when using MVCC).
#Referential integrity checks didn't lock the referenced table, and thus could read uncommitted rows of other connections. In that way the referential constraints could get violated (except when using MVCC).
@changelog_1241_li
@changelog_1245_li
#Renaming or dropping a user with a schema, or removing the admin property of that user made the schema inaccessible after re-opening the database. Fixed.
#Renaming or dropping a user with a schema, or removing the admin property of that user made the schema inaccessible after re-opening the database. Fixed.
@changelog_1242_li
@changelog_1246_li
#The H2 Console now also support the command line option -ifExists when started from the Server tool, but only when connecting to H2 databases.
#The H2 Console now also support the command line option -ifExists when started from the Server tool, but only when connecting to H2 databases.
@changelog_1243_li
@changelog_1247_li
#Duplicate column names were not detected when renaming columns. Fixed.
#Duplicate column names were not detected when renaming columns. Fixed.
@changelog_1244_li
@changelog_1248_li
#The console did not display multiple embedded spaces in text correctly. Fixed.
#The console did not display multiple embedded spaces in text correctly. Fixed.
@changelog_1245_li
@changelog_1249_li
#Google Android support: use 'ant codeswitchAndroid' to switch the source code to Android.
#Google Android support: use 'ant codeswitchAndroid' to switch the source code to Android.
@changelog_1246_li
@changelog_1250_li
#Values of type ARRAY are now sorted as in PostgreSQL.
#Values of type ARRAY are now sorted as in PostgreSQL.
@changelog_1247_li
@changelog_1251_li
#In the cluster mode, could not connect if only one server was running (last release only). Fixed.
#In the cluster mode, could not connect if only one server was running (last release only). Fixed.
@changelog_1248_li
@changelog_1252_li
#The performance of large CSV operations has been improved.
#The performance of large CSV operations has been improved.
@changelog_1249_li
@changelog_1253_li
#Now using custom toString() for most JDBC objects and commands.
#Now using custom toString() for most JDBC objects and commands.
@changelog_1250_li
@changelog_1254_li
#Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
#Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
@changelog_1251_li
@changelog_1255_li
#CSV: Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
#CSV: Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
@changelog_1252_li
@changelog_1256_li
#A patch for Apache DDL Utils is available at https://issues.apache.org/jira/browse/DDLUTILS-185
#A patch for Apache DDL Utils is available at https://issues.apache.org/jira/browse/DDLUTILS-185
@changelog_1253_li
@changelog_1257_li
#The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
#The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
@changelog_1254_li
@changelog_1258_li
#Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot!
#Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot!
@changelog_1255_li
@changelog_1259_li
#Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
#Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
@changelog_1256_h2
@changelog_1260_h2
#Version 1.0.61 (2007-11-10)
#Version 1.0.61 (2007-11-10)
@changelog_1257_li
@changelog_1261_li
#The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
#The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
@changelog_1258_li
@changelog_1262_li
#Added more tests. The code coverage is now at 83%.
#Added more tests. The code coverage is now at 83%.
@changelog_1259_li
@changelog_1263_li
#ResultSetMetaData.getColumnDisplaySize was calculated as the longest display size for the given result set, but should be the maximum size that fits in the column. Fixed.
#ResultSetMetaData.getColumnDisplaySize was calculated as the longest display size for the given result set, but should be the maximum size that fits in the column. Fixed.
@changelog_1260_li
@changelog_1264_li
#The MODE used to be a global setting, now it is a database level setting.
#The MODE used to be a global setting, now it is a database level setting.
@changelog_1261_li
@changelog_1265_li
#The database does now always round to the nearest number when converting a floating point to a integer: CAST(1.5 AS INT) will now result in 2, like in PostgreSQL and MySQL.
#The database does now always round to the nearest number when converting a floating point to a integer: CAST(1.5 AS INT) will now result in 2, like in PostgreSQL and MySQL.
@changelog_1262_li
@changelog_1266_li
#Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
#Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
@changelog_1263_li
@changelog_1267_li
#INSTR, LOCATE: backward searching is not supported by using a negative start position.
#INSTR, LOCATE: backward searching is not supported by using a negative start position.
@changelog_1264_li
@changelog_1268_li
#Can now open a database stored in a jar or zip file (for example, jdbc:h2:zip:c:/temp/h2.zip!/test).
#Can now open a database stored in a jar or zip file (for example, jdbc:h2:zip:c:/temp/h2.zip!/test).
@changelog_1265_li
@changelog_1269_li
#Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
#Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
@changelog_1266_li
@changelog_1270_li
#Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
#Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
@changelog_1267_li
@changelog_1271_li
#Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
#Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
@changelog_1268_li
@changelog_1272_li
#Solved a Java level deadlock in the DatabaseCloser.
#Solved a Java level deadlock in the DatabaseCloser.
@changelog_1269_li
@changelog_1273_li
#CREATE SEQUENCE: New option CACHE (number of pre-allocated numbers). New column CACHE in the sequence meta data table. The default cache size is still 32.
#CREATE SEQUENCE: New option CACHE (number of pre-allocated numbers). New column CACHE in the sequence meta data table. The default cache size is still 32.
@changelog_1270_li
@changelog_1274_li
#MVCC: The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
#MVCC: The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
@changelog_1271_h2
@changelog_1275_h2
#Version 1.0.60 (2007-10-20)
#Version 1.0.60 (2007-10-20)
@changelog_1272_li
@changelog_1276_li
#JdbcXAConnection: starting a transaction before getting the connection didn't switch off autocommit.
#JdbcXAConnection: starting a transaction before getting the connection didn't switch off autocommit.
@changelog_1273_li
@changelog_1277_li
#User defined aggregate functions are not supported.
#User defined aggregate functions are not supported.
@changelog_1274_li
@changelog_1278_li
#Server.shutdownTcpServer was blocked when first called with force=false and then force=true. Now documentation is improved, and it is no longer blocked.
#Server.shutdownTcpServer was blocked when first called with force=false and then force=true. Now documentation is improved, and it is no longer blocked.
@changelog_1275_li
@changelog_1279_li
#Stack traces did not include the SQL statement in all cases where they could have. Also, stack traces with SQL statement are now shorter.
#Stack traces did not include the SQL statement in all cases where they could have. Also, stack traces with SQL statement are now shorter.
@changelog_1276_li
@changelog_1280_li
#Linked tables: now tables in non-default schemas are supported as well
#Linked tables: now tables in non-default schemas are supported as well
@changelog_1277_li
@changelog_1281_li
#New Italian translation from PierPaolo Ucchino. Thanks a lot!
#New Italian translation from PierPaolo Ucchino. Thanks a lot!
@changelog_1278_li
@changelog_1282_li
#CSV: New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
#CSV: New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
@changelog_1279_li
@changelog_1283_li
#Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
#Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
@changelog_1280_li
@changelog_1284_li
#PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
#PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
@changelog_1281_li
@changelog_1285_li
#The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
#The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
@changelog_1282_li
@changelog_1286_li
#CSVREAD, RUNSCRIPT and so on now support URLs as well, using URL.openStream(). Example: select * from csvread('jar:file:///c:/temp/test.jar!/test.csv');
#CSVREAD, RUNSCRIPT and so on now support URLs as well, using URL.openStream(). Example: select * from csvread('jar:file:///c:/temp/test.jar!/test.csv');
@changelog_1283_h2
@changelog_1287_h2
#Version 1.0.59 (2007-10-03)
#Version 1.0.59 (2007-10-03)
@changelog_1284_li
@changelog_1288_li
#When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
#When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
@changelog_1285_li
@changelog_1289_li
#If the process was killed while the database was running, sometimes the database could not be opened ('double allocation') except when the system property h2.check was set to false. Fixed.
#If the process was killed while the database was running, sometimes the database could not be opened ('double allocation') except when the system property h2.check was set to false. Fixed.
@changelog_1286_li
@changelog_1290_li
#Multi-threaded kernel (MULTI_THREADED=1): A synchronization problem has been fixed.
#Multi-threaded kernel (MULTI_THREADED=1): A synchronization problem has been fixed.
@changelog_1287_li
@changelog_1291_li
#A PreparedStatement that was cancelled could not be reused. Fixed.
#A PreparedStatement that was cancelled could not be reused. Fixed.
@changelog_1288_li
@changelog_1292_li
#H2 Console: Progress information when logging into a H2 embedded database (useful when opening a database is slow).
#H2 Console: Progress information when logging into a H2 embedded database (useful when opening a database is slow).
@changelog_1289_li
@changelog_1293_li
#When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
#When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
@changelog_1290_li
@changelog_1294_li
#Fulltext search is now documented (in the Tutorial).
#Fulltext search is now documented (in the Tutorial).
@changelog_1291_li
@changelog_1295_li
#The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
#The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
@changelog_1292_li
@changelog_1296_li
#When creating a table using CREATE TABLE .. AS SELECT, the precision for some data types (for example VARCHAR) was set to the default precision. Fixed.
#When creating a table using CREATE TABLE .. AS SELECT, the precision for some data types (for example VARCHAR) was set to the default precision. Fixed.
@changelog_1293_li
@changelog_1297_li
#When using the (undocumented) in-memory file system (jdbc:h2:memFS:x or jdbc:h2:memLZF:x), and using multiple connections, a ConcurrentModificationException could occur. Fixed.
#When using the (undocumented) in-memory file system (jdbc:h2:memFS:x or jdbc:h2:memLZF:x), and using multiple connections, a ConcurrentModificationException could occur. Fixed.
@changelog_1294_li
@changelog_1298_li
#REGEXP compatibility: So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
#REGEXP compatibility: So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
@changelog_1295_li
@changelog_1299_li
#SCRIPT: the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
#SCRIPT: the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
@changelog_1296_li
@changelog_1300_li
#When using a subquery with group by as a table, some columns could not be used in the where condition in the outer query. Example: SELECT * FROM (SELECT ID, COUNT(*) C FROM TEST) WHERE C > 100. Fixed.
#When using a subquery with group by as a table, some columns could not be used in the where condition in the outer query. Example: SELECT * FROM (SELECT ID, COUNT(*) C FROM TEST) WHERE C > 100. Fixed.
@changelog_1297_li
@changelog_1301_li
#Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
#Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
@changelog_1298_li
@changelog_1302_li
#Compatibility: comparing columns with constants that are out of range does not throw an exception.
#Compatibility: comparing columns with constants that are out of range does not throw an exception.
@changelog_1299_h2
@changelog_1303_h2
#Version 1.0.58 (2007-09-15)
#Version 1.0.58 (2007-09-15)
@changelog_1300_li
@changelog_1304_li
#System.exit is no longer called by the WebServer, the Console and the Server tool (except to set the exit code if required). This is important when using OSGi.
#System.exit is no longer called by the WebServer, the Console and the Server tool (except to set the exit code if required). This is important when using OSGi.
@changelog_1301_li
@changelog_1305_li
#Optimization for independent subqueries. For example, this query can now an index: SELECT * FROM TEST WHERE ID = (SELECT MAX(ID) FROM TEST) This can be disabled by setting the system property h2.optimizeSubqueryCache to false.
#Optimization for independent subqueries. For example, this query can now an index: SELECT * FROM TEST WHERE ID = (SELECT MAX(ID) FROM TEST) This can be disabled by setting the system property h2.optimizeSubqueryCache to false.
@changelog_1302_li
@changelog_1306_li
#The explain plan now says: /* direct lookup query */ if the query can be processed directly without reading rows, for example when using MIN(indexed column), MAX(indexed column), or COUNT(*).
#The explain plan now says: /* direct lookup query */ if the query can be processed directly without reading rows, for example when using MIN(indexed column), MAX(indexed column), or COUNT(*).
@changelog_1303_li
@changelog_1307_li
#When using IFNULL, NULLIF, COALESCE, LEAST, or GREATEST, and the first parameter was ?, an exception was thrown. Now the highest data type of all parameters is used.
#When using IFNULL, NULLIF, COALESCE, LEAST, or GREATEST, and the first parameter was ?, an exception was thrown. Now the highest data type of all parameters is used.
@changelog_1304_li
@changelog_1308_li
#When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
#When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
@changelog_1305_li
@changelog_1309_li
#Maven 2: new version are now automatically synced with the central repositories.
#Maven 2: new version are now automatically synced with the central repositories.
@changelog_1306_li
@changelog_1310_li
#The default value for MAX_MEMORY_UNDO is now 100000.
#The default value for MAX_MEMORY_UNDO is now 100000.
@changelog_1307_li
@changelog_1311_li
#The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
#The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
@changelog_1308_li
@changelog_1312_li
#Oracle compatibility: SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
#Oracle compatibility: SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
@changelog_1309_li
@changelog_1313_li
#After deleting data, empty space in the database files was not efficiently reused (but it was reused when opening the database). This has been fixed.
#After deleting data, empty space in the database files was not efficiently reused (but it was reused when opening the database). This has been fixed.
@changelog_1310_li
@changelog_1314_li
#About 230 bytes per database was leaked. This is a problem for applications opening and closing many thousand databases. The main problem: a shutdown hook was added but never removed. Fixed. In JDK 1.4, there is <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4197876">an additionally problem</a> . A workaround has been implemented.
#About 230 bytes per database was leaked. This is a problem for applications opening and closing many thousand databases. The main problem: a shutdown hook was added but never removed. Fixed. In JDK 1.4, there is <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4197876">an additionally problem</a> . A workaround has been implemented.
@changelog_1311_li
@changelog_1315_li
#Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
#Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
@changelog_1312_li
@changelog_1316_li
#Using spaces in column and table aliases was not supported when used inside a view or temporary view.
#Using spaces in column and table aliases was not supported when used inside a view or temporary view.
@changelog_1313_li
@changelog_1317_li
#The version (build) number is now included in the manifest file.
#The version (build) number is now included in the manifest file.
@changelog_1314_li
@changelog_1318_li
#In some systems, SecureRandom.generateSeed is very slow (taking one minute or more). For those cases, an alternative method is used that takes less than one second.
#In some systems, SecureRandom.generateSeed is very slow (taking one minute or more). For those cases, an alternative method is used that takes less than one second.
@changelog_1315_li
@changelog_1319_li
#The database file sizes are now increased at most 32 MB at any time.
#The database file sizes are now increased at most 32 MB at any time.
@changelog_1316_li
@changelog_1320_li
#New method DatabaseEventListener.opened that is called just after opening a database.
#New method DatabaseEventListener.opened that is called just after opening a database.
@changelog_1317_li
@changelog_1321_li
#When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
#When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
@changelog_1318_li
@changelog_1322_li
#A database can now be opened even if class of a user defined function is not in the classpath. Trying to call the function will throws an exception.
#A database can now be opened even if class of a user defined function is not in the classpath. Trying to call the function will throws an exception.
@changelog_1319_li
@changelog_1323_li
#User defined functions and constants may not overload built-in functions and constants. This didn't work before, but now trying to create such an object will fail.
#User defined functions and constants may not overload built-in functions and constants. This didn't work before, but now trying to create such an object will fail.
@changelog_1320_li
@changelog_1324_li
#Improved MultiDimension tool (for spatial queries): in the last few releases the tool was actually slower than using a regular query (because index lookup got faster, and because the tool didn't support prepared statements) Now the tool generates prepared statements, and the performance is better again (about 5 times faster for a reasonable amount of data).
#Improved MultiDimension tool (for spatial queries): in the last few releases the tool was actually slower than using a regular query (because index lookup got faster, and because the tool didn't support prepared statements) Now the tool generates prepared statements, and the performance is better again (about 5 times faster for a reasonable amount of data).
@changelog_1321_li
@changelog_1325_li
#Adding a foreign key or when re-enabling referential integrity for a table failed when checking was enabled and the reference contained NULL.
#Adding a foreign key or when re-enabling referential integrity for a table failed when checking was enabled and the reference contained NULL.
@changelog_1322_li
@changelog_1326_li
#For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
#For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
@changelog_1323_li
@changelog_1327_li
#Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
#Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
#This database supports Hibernate version 3.1 and newer. You can use the HSQLDB Dialect, or the native H2 Dialect. Unfortunately the H2 Dialect included in Hibernate is buggy. A <a href="http://opensource.atlassian.com/projects/hibernate/browse/HHH-3401">patch for Hibernate</a> has been submitted. The dialect for the newest version of Hibernate is also available at src/tools/org/hibernate/dialect/H2Dialect.java.txt. You can rename it to H2Dialect.java and include this as a patch in your application.
advanced_1027_p=Before the result is returned to the application, all rows are read by the database. Server side cursors are not supported currently. If only the first few rows are interesting for the application, then the result set size should be limited to improve the performance. This can be done using LIMIT in a query (example\:SELECT * FROM TEST LIMIT 100), or by using Statement.setMaxRows(max).
advanced_1027_p=Before the result is returned to the application, all rows are read by the database. Server side cursors are not supported currently. If only the first few rows are interesting for the application, then the result set size should be limited to improve the performance. This can be done using LIMIT in a query (example\:SELECT * FROM TEST LIMIT 100), or by using Statement.setMaxRows(max).
advanced_1028_h3=Large Result Sets and External Sorting
advanced_1028_h3=Large Result Sets and External Sorting
advanced_1029_p=For result set larger than 1000 rows, the result is buffered to disk. If ORDER BY is used, the sorting is done using an external sort algorithm. In this case, each block of rows is sorted using quick sort, then written to disk; when reading the data, the blocks are merged together.
advanced_1029_p=For large result set, the result is buffered to disk. The threshold can be defined using the statement SET MAX_MEMORY_ROWS. If ORDER BY is used, the sorting is done using an external sort algorithm. In this case, each block of rows is sorted using quick sort, then written to disk; when reading the data, the blocks are merged together.
advanced_1030_h2=Large Objects
advanced_1030_h2=Large Objects
advanced_1031_h3=Storing and Reading Large Objects
advanced_1031_h3=Storing and Reading Large Objects
advanced_1032_p=If it is possible that the objects don't fit into memory, then the data type CLOB (for textual data) or BLOB (for binary data) should be used. For these data types, the objects are not fully read into memory, by using streams. To store a BLOB, use PreparedStatement.setBinaryStream. To store a CLOB, use PreparedStatement.setCharacterStream. To read a BLOB, use ResultSet.getBinaryStream, and to read a CLOB, use ResultSet.getCharacterStream. If the client/server mode is used, the BLOB and CLOB data is fully read into memory when accessed. In this case, the size of a BLOB or CLOB is limited by the memory.
advanced_1032_p=If it is possible that the objects don't fit into memory, then the data type CLOB (for textual data) or BLOB (for binary data) should be used. For these data types, the objects are not fully read into memory, by using streams. To store a BLOB, use PreparedStatement.setBinaryStream. To store a CLOB, use PreparedStatement.setCharacterStream. To read a BLOB, use ResultSet.getBinaryStream, and to read a CLOB, use ResultSet.getCharacterStream. If the client/server mode is used, the BLOB and CLOB data is fully read into memory when accessed. In this case, the size of a BLOB or CLOB is limited by the memory.
build_1034_p=The conversion between UTF-8 and Java encoding (using the \\u syntax), as well as the HTML entities (&\#..;) is automated by running the tool PropertiesToUTF8. The web site translation is automated as well, using <code>build docs</code> .
build_1034_p=The conversion between UTF-8 and Java encoding (using the \\u syntax), as well as the HTML entities (&\#..;) is automated by running the tool PropertiesToUTF8. The web site translation is automated as well, using <code>build docs</code> .
changelog_1000_h1=Change Log
changelog_1000_h1=Change Log
changelog_1001_h2=Next Version (unreleased)
changelog_1001_h2=Next Version (unreleased)
changelog_1002_li=H2 Console\:The progress display when opening a database has been improved.
changelog_1002_li=ResultSetMetaData.getColumnClassName now returns the correct class name for BLOB and CLOB.
changelog_1003_li=The error message when the server doesn't start has been improved.
changelog_1003_li=Fixed the Oracle mode\:Oracle allows multiple rows only where all columns of the unique index are NULL.
changelog_1004_li=Key values can now be changed in updatable result sets.
changelog_1004_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_1005_li=Changes in updatable result sets are now visible even when resetting the result set.
changelog_1005_li=ORDER BY on tableName.columnName didn't work correctly if the column name was also used as an alias.
changelog_1006_li=Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
changelog_1006_li=H2 Console\:The progress display when opening a database has been improved.
changelog_1007_li=The database file was growing after deleting many rows, and after large update operations.
changelog_1007_li=The error message when the server doesn't start has been improved.
changelog_1008_h2=Version 1.0.75 (2008-07-14)
changelog_1008_li=Key values can now be changed in updatable result sets.
changelog_1009_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_1009_li=Changes in updatable result sets are now visible even when resetting the result set.
changelog_1010_li=Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
changelog_1010_li=Temporary files were sometimes deleted too late when executing large insert, update, or delete operations.
changelog_1011_li=The CSVREAD method did not process NULL correctly when using a whitespace field separator.
changelog_1011_li=The database file was growing after deleting many rows, and after large update operations.
changelog_1012_li=Fixed the Oracle mode\:Oracle allows multiple rows with NULL in a unique index.
changelog_1012_h2=Version 1.0.75 (2008-07-14)
changelog_1013_li=Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
changelog_1013_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_1014_li=When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
changelog_1014_li=Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
changelog_1015_li=Referential constraint checking improvement\:now the constraint is only checked if the key column values change.
changelog_1015_li=The CSVREAD method did not process NULL correctly when using a whitespace field separator.
changelog_1016_li=Some database metadata calls returned the wrong data type for DATA_TYPE columns.
changelog_1016_li=Fixed the Oracle mode\:Oracle allows multiple rows with NULL in a unique index.
changelog_1017_li=The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
changelog_1017_li=Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
changelog_1018_li=The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
changelog_1018_li=When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
changelog_1019_li=The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
changelog_1019_li=Referential constraint checking improvement\:now the constraint is only checked if the key column values change.
changelog_1020_li=Stopping a WebServer didn't always work. Fixed.
changelog_1020_li=Some database metadata calls returned the wrong data type for DATA_TYPE columns.
changelog_1021_h2=Version 1.0.74 (2008-06-21)
changelog_1021_li=The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
changelog_1022_li=Work on row level locking has been started (but there is nothing usable yet).
changelog_1022_li=The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
changelog_1023_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_1023_li=The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
changelog_1024_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_1024_li=Stopping a WebServer didn't always work. Fixed.
changelog_1025_li=The ChangePassword tool is now called ChangeFileEncryption.
changelog_1025_h2=Version 1.0.74 (2008-06-21)
changelog_1026_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_1026_li=Work on row level locking has been started (but there is nothing usable yet).
changelog_1027_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_1027_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_1028_li=Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
changelog_1028_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_1029_li=RUNSCRIPT could throw a NullPointerException if the script name was an expression.
changelog_1029_li=The ChangePassword tool is now called ChangeFileEncryption.
changelog_1030_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_1030_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_1031_li=Linked tables\:To view the statements that are executed against the target table, set the trace level to 3.
changelog_1031_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_1032_li=RunScript tool\:new options to show and check the results of queries.
changelog_1032_li=Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
changelog_1033_li=Deadlocks are now detected. One transaction is rolled back automatically.
changelog_1033_li=RUNSCRIPT could throw a NullPointerException if the script name was an expression.
changelog_1034_li=The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
changelog_1034_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_1035_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_1035_li=Linked tables\:To view the statements that are executed against the target table, set the trace level to 3.
changelog_1036_h2=Version 1.0.73 (2008-05-31)
changelog_1036_li=RunScript tool\:new options to show and check the results of queries.
changelog_1037_li=ParameterMetaData now returns the right data type for most conditions, as in WHERE ID\=?.
changelog_1037_li=Deadlocks are now detected. One transaction is rolled back automatically.
changelog_1038_li=The table SYSTEM_RANGE now supports expressions and parameters.
changelog_1038_li=The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
changelog_1039_li=New column INFORMATION_SCHEMA.CONSTRAINTS.UNIQUE_INDEX_NAME that contains the name of the unique index used to enforce this constraint, if there is such an index.
changelog_1039_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_1040_li=SET QUERY_TIMEOUT and Statement.setQueryTimeout no longer commits a transaction. The same applies to SET @VARIABLE, SET LOCK_TIMEOUT, SET TRACE_LEVEL_*, SET THROTTLE, and SET PATH.
changelog_1040_h2=Version 1.0.73 (2008-05-31)
changelog_1041_li=The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
changelog_1041_li=ParameterMetaData now returns the right data type for most conditions, as in WHERE ID\=?.
changelog_1042_li=MySQL compatibility\:auto_increment column are no longer automatically converted to primary key columns.
changelog_1042_li=The table SYSTEM_RANGE now supports expressions and parameters.
changelog_1043_li=PostgreSQL compatibility\:support for BOOL_OR and BOOL_AND aggregate functions.
changelog_1043_li=New column INFORMATION_SCHEMA.CONSTRAINTS.UNIQUE_INDEX_NAME that contains the name of the unique index used to enforce this constraint, if there is such an index.
changelog_1044_li=Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
changelog_1044_li=SET QUERY_TIMEOUT and Statement.setQueryTimeout no longer commits a transaction. The same applies to SET @VARIABLE, SET LOCK_TIMEOUT, SET TRACE_LEVEL_*, SET THROTTLE, and SET PATH.
changelog_1045_li=A role or right can now be granted or revoked multiple times without getting an exception.
changelog_1045_li=The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
changelog_1046_li=Infinite numbers in SQL scripts are listed as POWER(0, -1)), negative infinite as (-POWER(0, -1)), and NaN (not a number) as SQRT(-1).
changelog_1046_li=MySQL compatibility\:auto_increment column are no longer automatically converted to primary key columns.
changelog_1047_li=The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
changelog_1047_li=PostgreSQL compatibility\:support for BOOL_OR and BOOL_AND aggregate functions.
changelog_1048_li=The fulltext search did not support CLOB data types.
changelog_1048_li=Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
changelog_1049_li=If the drive with the database files was disconnected or unmounted while writing, sometimes a stack overflow exception was thrown instead of a IO exception.
changelog_1049_li=A role or right can now be granted or revoked multiple times without getting an exception.
changelog_1050_li=The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
changelog_1050_li=Infinite numbers in SQL scripts are listed as POWER(0, -1)), negative infinite as (-POWER(0, -1)), and NaN (not a number) as SQRT(-1).
changelog_1051_li=If the password was passed as a char array, it was kept in an internal buffer longer than required. Theoretically the password could have been stolen if the main memory was swapped to disk before the garbage collection was run.
changelog_1051_li=The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
changelog_1052_h2=Version 1.0.72 (2008-05-10)
changelog_1052_li=The fulltext search did not support CLOB data types.
changelog_1053_li=Some databases could not be opened when appending ;RECOVER\=1 to the database URL.
changelog_1053_li=If the drive with the database files was disconnected or unmounted while writing, sometimes a stack overflow exception was thrown instead of a IO exception.
changelog_1054_li=The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
changelog_1054_li=The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
changelog_1055_li=Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
changelog_1055_li=If the password was passed as a char array, it was kept in an internal buffer longer than required. Theoretically the password could have been stolen if the main memory was swapped to disk before the garbage collection was run.
changelog_1056_li=ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
changelog_1056_h2=Version 1.0.72 (2008-05-10)
changelog_1057_li=H2 Shell\:DESCRIBE now supports an schema name.
changelog_1057_li=Some databases could not be opened when appending ;RECOVER\=1 to the database URL.
changelog_1058_li=A subset of the PostgreSQL 'dollar quoting' feature is now supported.
changelog_1058_li=The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
changelog_1059_li=SLF4J is now supported by using adding TRACE_LEVEL_FILE\=4 to the database URL.
changelog_1059_li=Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
changelog_1060_li=The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
changelog_1060_li=ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
changelog_1061_li=Triggers are no longer executed when changing the table structure (ALTER TABLE).
changelog_1061_li=H2 Shell\:DESCRIBE now supports an schema name.
changelog_1062_li=When setting BLOB or CLOB values larger than 65 KB using a remote connection, temporary files were kept on the client longer than required (until the connection was closed or the object is garbage collected). Now they are removed as soon as the PreparedStatement is closed, or when the value is overwritten.
changelog_1062_li=A subset of the PostgreSQL 'dollar quoting' feature is now supported.
changelog_1063_li=Statements can now be cancelled remotely (when using remote connections).
changelog_1063_li=SLF4J is now supported by using adding TRACE_LEVEL_FILE\=4 to the database URL.
changelog_1064_li=The Shell tool now uses java.io.Console to read the password when using JDK 1.6
changelog_1064_li=The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
changelog_1065_li=When using read-only databases and setting LOG\=2, an exception was written to the trace file when closing the database. Fixed.
changelog_1065_li=Triggers are no longer executed when changing the table structure (ALTER TABLE).
changelog_1066_h2=Version 1.0.71 (2008-04-25)
changelog_1066_li=When setting BLOB or CLOB values larger than 65 KB using a remote connection, temporary files were kept on the client longer than required (until the connection was closed or the object is garbage collected). Now they are removed as soon as the PreparedStatement is closed, or when the value is overwritten.
changelog_1067_li=H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
changelog_1067_li=Statements can now be cancelled remotely (when using remote connections).
changelog_1068_li=Sometimes an exception 'File ID mismatch' or 'try to add a record twice' occurred after large records (8 KB or larger) are updated or deleted. See also http\://code.google.com/p/h2database/issues/detail?id\=22
changelog_1068_li=The Shell tool now uses java.io.Console to read the password when using JDK 1.6
changelog_1069_li=H2 Console\:The tools can now be translated (it didn't work in the last release).
changelog_1069_li=When using read-only databases and setting LOG\=2, an exception was written to the trace file when closing the database. Fixed.
changelog_1070_li=New traditional Chinese translation. Thanks a lot to Derek Chao\!
changelog_1070_h2=Version 1.0.71 (2008-04-25)
changelog_1071_li=Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
changelog_1071_li=H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
changelog_1072_h2=Version 1.0.70 (2008-04-20)
changelog_1072_li=Sometimes an exception 'File ID mismatch' or 'try to add a record twice' occurred after large records (8 KB or larger) are updated or deleted. See also http\://code.google.com/p/h2database/issues/detail?id\=22
changelog_1073_li=The plan is to dual-license H2. The additional license is EPL (Eclipse Public License). The current license (MPL, Mozilla Public License) will stay. Current users are not affected because they can keep MPL. EPL is very similar to MPL, the only bigger difference is related to patents (EPL is a bit more business friendly in this regard). See also http\://opensource.org/licenses/eclipse-1.0.php, http\://www.eclipse.org/legal/eplfaq.php (FAQ), http\://blogs.zdnet.com/Burnette/?p\=131
changelog_1073_li=H2 Console\:The tools can now be translated (it didn't work in the last release).
changelog_1074_li=Multi version concurrency (MVCC)\:when a row was updated, and the updated column was not indexed, this update was visible sometimes for other sessions even if it was not committed.
changelog_1074_li=New traditional Chinese translation. Thanks a lot to Derek Chao\!
changelog_1075_li=Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
changelog_1075_li=Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
changelog_1076_li=New system property h2.enableAnonymousSSL (default\:true) to enable anonymous SSL connections.
changelog_1076_h2=Version 1.0.70 (2008-04-20)
changelog_1077_li=The precision if SUBSTR is now calculated if possible.
changelog_1077_li=The plan is to dual-license H2. The additional license is EPL (Eclipse Public License). The current license (MPL, Mozilla Public License) will stay. Current users are not affected because they can keep MPL. EPL is very similar to MPL, the only bigger difference is related to patents (EPL is a bit more business friendly in this regard). See also http\://opensource.org/licenses/eclipse-1.0.php, http\://www.eclipse.org/legal/eplfaq.php (FAQ), http\://blogs.zdnet.com/Burnette/?p\=131
changelog_1078_li=The autocomplete in the H2 Console has been improved a bit.
changelog_1078_li=Multi version concurrency (MVCC)\:when a row was updated, and the updated column was not indexed, this update was visible sometimes for other sessions even if it was not committed.
changelog_1079_li=The tools in the H2 Console are now translatable.
changelog_1079_li=Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
changelog_1080_li=The servlet and lucene jar files are now automatically downloaded when building.
changelog_1080_li=New system property h2.enableAnonymousSSL (default\:true) to enable anonymous SSL connections.
changelog_1081_li=The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
changelog_1081_li=The precision if SUBSTR is now calculated if possible.
changelog_1082_li=Started to write a Ant replacement ('JAnt') that uses pure Java build definitions. Advantages\:ability to debug the build, extensible, flexible, no XML, a bit faster. Future plan\:support creating custom h2 distributions (for embedded use). Maybe create a new project 'Jant' or 'Javen' if other people are interested.
changelog_1082_li=The autocomplete in the H2 Console has been improved a bit.
changelog_1083_li=The jar file is now about 10% smaller because the variable debugging info is no longer included. The source file and line number debugging info is still included. If required, the jar file size of the full version can be further reduced to about 720 KB using 'build jarSmall' or even more by removing unneeded components.
changelog_1083_li=The tools in the H2 Console are now translatable.
changelog_1084_li=Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome\!
changelog_1084_li=The servlet and lucene jar files are now automatically downloaded when building.
changelog_1085_li=Databases in zip files\:large queries are now supported. Temp files are created in the temp directory if required. The documentation how to create the zip file has been corrected.
changelog_1085_li=The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
changelog_1086_li=Started to write a Ant replacement ('JAnt') that uses pure Java build definitions. Advantages\:ability to debug the build, extensible, flexible, no XML, a bit faster. Future plan\:support creating custom h2 distributions (for embedded use). Maybe create a new project 'Jant' or 'Javen' if other people are interested.
changelog_1087_li=The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
changelog_1087_li=The jar file is now about 10% smaller because the variable debugging info is no longer included. The source file and line number debugging info is still included. If required, the jar file size of the full version can be further reduced to about 720 KB using 'build jarSmall' or even more by removing unneeded components.
changelog_1088_li=Optimization for MIN() and MAX() when using MVCC.
changelog_1088_li=Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome\!
changelog_1089_li=To protect against remote brute force password attacks, the delay after each unsuccessful login now gets double as long. New system properties h2.delayWrongPasswordMin and h2.delayWrongPasswordMax.
changelog_1089_li=Databases in zip files\:large queries are now supported. Temp files are created in the temp directory if required. The documentation how to create the zip file has been corrected.
changelog_1090_li=After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
changelog_1091_li=Adding a IDENTITY column to a table with data threw a lock timeout.
changelog_1091_li=The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
changelog_1092_li=OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
changelog_1092_li=Optimization for MIN() and MAX() when using MVCC.
changelog_1093_li=The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
changelog_1093_li=To protect against remote brute force password attacks, the delay after each unsuccessful login now gets double as long. New system properties h2.delayWrongPasswordMin and h2.delayWrongPasswordMax.
changelog_1094_li=The ConvertTraceFile tool now generates SQL statement statistics at the end of the SQL script file (similar to the profiling data generated when using java -Xrunhprof).
changelog_1094_li=After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
changelog_1095_li=Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
changelog_1095_li=Adding a IDENTITY column to a table with data threw a lock timeout.
changelog_1096_h2=Version 1.0.69 (2008-03-29)
changelog_1096_li=OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
changelog_1097_li=Most command line tools can now be called from within the H2 Console.
changelog_1097_li=The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
changelog_1098_li=A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
changelog_1098_li=The ConvertTraceFile tool now generates SQL statement statistics at the end of the SQL script file (similar to the profiling data generated when using java -Xrunhprof).
changelog_1099_li=The command line options in the tools have changed\:instead of '-log true' now '-trace' is used. Also, '-ifExists', '-tcpSSL' and '-tcpAllowOthers' and so on have changed\:now the 'true' is no longer needed. The old behavior is still supported.
changelog_1099_li=Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
changelog_1100_li=New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
changelog_1100_h2=Version 1.0.69 (2008-03-29)
changelog_1101_li=Performance was very slow when using LOG\=2 and deleting or updating all rows of a table in a loop. Fixed.
changelog_1101_li=Most command line tools can now be called from within the H2 Console.
changelog_1102_li=ALTER TABLE or CREATE TABLE now support parameters for the password field.
changelog_1102_li=A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
changelog_1103_li=The linear hash has been removed. It was always slower than the b-tree index, and there were some bugs that would be hard to fix.
changelog_1103_li=The command line options in the tools have changed\:instead of '-log true' now '-trace' is used. Also, '-ifExists', '-tcpSSL' and '-tcpAllowOthers' and so on have changed\:now the 'true' is no longer needed. The old behavior is still supported.
changelog_1104_li=TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
changelog_1104_li=New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
changelog_1105_li=Fulltext search (native implementation)\:The words table is no longer an in-memory table because this caused memory problems in some cases.
changelog_1105_li=Performance was very slow when using LOG\=2 and deleting or updating all rows of a table in a loop. Fixed.
changelog_1106_li=It was possible to create a role with the name as an existing user (but not vice versa). This is not allowed any more.
changelog_1106_li=ALTER TABLE or CREATE TABLE now support parameters for the password field.
changelog_1107_li=The recovery tool didn't work correctly for tables without rows.
changelog_1107_li=The linear hash has been removed. It was always slower than the b-tree index, and there were some bugs that would be hard to fix.
changelog_1108_li=For years below 1, the YEAR method didn't return the correct value, and the conversion from date and timestamp to varchar was incorrect.
changelog_1108_li=TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
changelog_1109_li=CSVWRITE caused a NullPointerException when not specifying a nullString.
changelog_1109_li=Fulltext search (native implementation)\:The words table is no longer an in-memory table because this caused memory problems in some cases.
changelog_1110_li=When a log file switch occurred just after a truncate table or drop table statement, the database could not be started normally (RECOVER\=1 was required). Fixed.
changelog_1110_li=It was possible to create a role with the name as an existing user (but not vice versa). This is not allowed any more.
changelog_1111_li=When a log file switch occurred in the middle of a sequence flush (sequences are only flushed every 32 values by default), the sequence value was lost. Fixed.
changelog_1111_li=The recovery tool didn't work correctly for tables without rows.
changelog_1112_li=Altering a sequence didn't unlock the system table when autocommit switched off.
changelog_1112_li=For years below 1, the YEAR method didn't return the correct value, and the conversion from date and timestamp to varchar was incorrect.
changelog_1113_h2=Version 1.0.68 (2008-03-18)
changelog_1113_li=CSVWRITE caused a NullPointerException when not specifying a nullString.
changelog_1114_li=Very large SELECT DISTINCT and UNION EXCEPT queries are now supported, however this feature is disabled by default. To enable it, set the system property h2.maxMemoryRowsDistinct to a lower value, for example 10000.
changelog_1114_li=When a log file switch occurred just after a truncate table or drop table statement, the database could not be started normally (RECOVER\=1 was required). Fixed.
changelog_1115_li=A error is now thrown when trying to call a method inside a trigger that implicitly commits the current transaction, if an object is locked.
changelog_1115_li=When a log file switch occurred in the middle of a sequence flush (sequences are only flushed every 32 values by default), the sequence value was lost. Fixed.
changelog_1116_li=Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
changelog_1116_li=Altering a sequence didn't unlock the system table when autocommit switched off.
changelog_1117_li=ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
changelog_1117_h2=Version 1.0.68 (2008-03-18)
changelog_1118_li=New system property h2.aliasColumnName. When enabled, aliased columns (as in SELECT ID AS I FROM TEST) return the real table and column name in ResultSetMetaData.getTableName() and getColumnName(). This is disabled by default for compatibility with other databases (HSQLDB, Apache Derby, PostgreSQL, some version of MySQL). In version 1.1 this setting will be enabled.
changelog_1118_li=Very large SELECT DISTINCT and UNION EXCEPT queries are now supported, however this feature is disabled by default. To enable it, set the system property h2.maxMemoryRowsDistinct to a lower value, for example 10000.
changelog_1119_li=When using encrypted databases, and using the wrong file password, the log file was renamed if the database was not already open. Fixed.
changelog_1119_li=A error is now thrown when trying to call a method inside a trigger that implicitly commits the current transaction, if an object is locked.
changelog_1120_li=Improved performance when using lob files in directories (however this is still disabled by default)
changelog_1120_li=Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
changelog_1121_li=H2 Console\:autocomplete didn't work with very large scripts. Fixed.
changelog_1121_li=ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
changelog_1122_li=Fulltext search\:new method SEARCH_DATA that returns the column names and primary keys as arrays.
changelog_1122_li=New system property h2.aliasColumnName. When enabled, aliased columns (as in SELECT ID AS I FROM TEST) return the real table and column name in ResultSetMetaData.getTableName() and getColumnName(). This is disabled by default for compatibility with other databases (HSQLDB, Apache Derby, PostgreSQL, some version of MySQL). In version 1.1 this setting will be enabled.
changelog_1123_li=New experimental optimization for GROUP BY queries if an index can be used that matches the group by columns. To enable this optimization, set the system property h2.optimizeGroupSorted to true.
changelog_1123_li=When using encrypted databases, and using the wrong file password, the log file was renamed if the database was not already open. Fixed.
changelog_1124_li=When using multi-version concurrency (MVCC\=TRUE), duplicate rows could appear in the result set when running queries with uncommitted changes in the same session.
changelog_1124_li=Improved performance when using lob files in directories (however this is still disabled by default)
changelog_1125_li=H2 Console\:remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
changelog_1125_li=H2 Console\:autocomplete didn't work with very large scripts. Fixed.
changelog_1126_li=H2 Console\:on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
changelog_1126_li=Fulltext search\:new method SEARCH_DATA that returns the column names and primary keys as arrays.
changelog_1127_li=H2 Console\:the start window works better with IKVM
changelog_1127_li=New experimental optimization for GROUP BY queries if an index can be used that matches the group by columns. To enable this optimization, set the system property h2.optimizeGroupSorted to true.
changelog_1128_li=H2 Console\:improved compatibility with Safari (Safari requires keep-alive)
changelog_1128_li=When using multi-version concurrency (MVCC\=TRUE), duplicate rows could appear in the result set when running queries with uncommitted changes in the same session.
changelog_1129_li=Random\:the process didn't stop if generating the random seed using the standard way (SecureRandom.generateSeed) was very slow. Now using a daemon thread to avoid this problem.
changelog_1129_li=H2 Console\:remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
changelog_1130_li=SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
changelog_1130_li=H2 Console\:on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
changelog_1131_li=When using a view, the column precision was changed to the default scale for some data types.
changelog_1131_li=H2 Console\:the start window works better with IKVM
changelog_1132_li=CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
changelog_1132_li=H2 Console\:improved compatibility with Safari (Safari requires keep-alive)
changelog_1133_li=Some long running queries could not be cancelled.
changelog_1133_li=Random\:the process didn't stop if generating the random seed using the standard way (SecureRandom.generateSeed) was very slow. Now using a daemon thread to avoid this problem.
changelog_1134_li=Queries with many outer join tables were very slow. Fixed.
changelog_1134_li=SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
changelog_1135_li=The performance of text comparison has been improved when using locale sensitive string comparison (SET COLLATOR). Now CollationKey is used with a LRU cache. The default cache size is 10000, and can be changed using the system property h2.collatorCacheSize. Use 0 to disable the cache.
changelog_1135_li=When using a view, the column precision was changed to the default scale for some data types.
changelog_1136_li=UPDATE SET column\=DEFAULT is now supported.
changelog_1136_li=CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
changelog_1137_h2=Version 1.0.67 (2008-02-22)
changelog_1137_li=Some long running queries could not be cancelled.
changelog_1138_li=New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
changelog_1138_li=Queries with many outer join tables were very slow. Fixed.
changelog_1139_li=CREATE TABLE AS SELECT now supports specifying the column list and data types.
changelog_1139_li=The performance of text comparison has been improved when using locale sensitive string comparison (SET COLLATOR). Now CollationKey is used with a LRU cache. The default cache size is 10000, and can be changed using the system property h2.collatorCacheSize. Use 0 to disable the cache.
changelog_1140_li=Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
changelog_1140_li=UPDATE SET column\=DEFAULT is now supported.
changelog_1141_li=A user now has all rights on his own local temporary tables.
changelog_1141_h2=Version 1.0.67 (2008-02-22)
changelog_1142_li=The CSV tool now supports a custom lineSeparator.
changelog_1142_li=New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
changelog_1143_li=When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
changelog_1143_li=CREATE TABLE AS SELECT now supports specifying the column list and data types.
changelog_1144_li=The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen\!
changelog_1144_li=Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
changelog_1145_li=Databases can now be opened even if trigger classes are not in the classpath. The exception is thrown when trying to fire the trigger.
changelog_1145_li=A user now has all rights on his own local temporary tables.
changelog_1146_li=Opening databases with ACCESS_MODE_DATA\=r is now supported. In this case the database is read-only, but the files don't not need to be read-only.
changelog_1146_li=The CSV tool now supports a custom lineSeparator.
changelog_1147_li=Security\:The database now waits 200 ms before throwing an exception if the user name or password don't match, to slow down dictionary attacks.
changelog_1147_li=When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
changelog_1148_li=The value cache is now a soft reference cache. This should help save memory.
changelog_1148_li=The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen\!
changelog_1149_li=CREATE INDEX on a table with many rows could run out of memory. Fixed.
changelog_1149_li=Databases can now be opened even if trigger classes are not in the classpath. The exception is thrown when trying to fire the trigger.
changelog_1150_li=Large result sets are now a bit faster.
changelog_1150_li=Opening databases with ACCESS_MODE_DATA\=r is now supported. In this case the database is read-only, but the files don't not need to be read-only.
changelog_1151_li=ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
changelog_1151_li=Security\:The database now waits 200 ms before throwing an exception if the user name or password don't match, to slow down dictionary attacks.
changelog_1152_li=When setting the base directory on the command line, the user directory prefix ('~') was ignored.
changelog_1152_li=The value cache is now a soft reference cache. This should help save memory.
changelog_1153_li=The DbStarter servlet didn't start the TCP listener even if configured.
changelog_1153_li=CREATE INDEX on a table with many rows could run out of memory. Fixed.
changelog_1154_li=Statement.setQueryTimeout() is now supported.
changelog_1154_li=Large result sets are now a bit faster.
changelog_1155_li=New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
changelog_1155_li=ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
changelog_1156_li=Changing the transaction log level (SET LOG) is now written to the trace file by default.
changelog_1156_li=When setting the base directory on the command line, the user directory prefix ('~') was ignored.
changelog_1157_li=In a SQL script, primary key constraints are now ordered before foreign key constraints.
changelog_1157_li=The DbStarter servlet didn't start the TCP listener even if configured.
changelog_1158_li=It was not possible to create a referential constraint to a table in a different schema in some situations.
changelog_1158_li=Statement.setQueryTimeout() is now supported.
changelog_1159_li=The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
changelog_1159_li=New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
changelog_1160_h2=Version 1.0.66 (2008-02-02)
changelog_1160_li=Changing the transaction log level (SET LOG) is now written to the trace file by default.
changelog_1161_li=There is a new online error analyzer tool.
changelog_1161_li=In a SQL script, primary key constraints are now ordered before foreign key constraints.
changelog_1162_li=H2 Console\:stack traces are now links to the source code in the source repository (H2 database only).
changelog_1162_li=It was not possible to create a referential constraint to a table in a different schema in some situations.
changelog_1163_li=CHAR data type equals comparison was case insensitive instead of case sensitive.
changelog_1163_li=The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
changelog_1164_li=The exception 'Value too long for column' now includes the data.
changelog_1164_h2=Version 1.0.66 (2008-02-02)
changelog_1165_li=The table name was missing in the documentation of CREATE INDEX.
changelog_1165_li=There is a new online error analyzer tool.
changelog_1166_li=Better support for IKVM (www.ikvm.net)\:the H2 Console now opens a browser window.
changelog_1166_li=H2 Console\:stack traces are now links to the source code in the source repository (H2 database only).
changelog_1167_li=The cache size was not correctly calculated for tables with large objects (specially if compression is used). This could lead to out-of-memory exceptions.
changelog_1167_li=CHAR data type equals comparison was case insensitive instead of case sensitive.
changelog_1168_li=The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
changelog_1168_li=The exception 'Value too long for column' now includes the data.
changelog_1169_li=The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
changelog_1169_li=The table name was missing in the documentation of CREATE INDEX.
changelog_1170_li=The acting as PostgreSQL server, when a base directory was set, and the H2 Console was started as well, the base directory was applied twice.
changelog_1170_li=Better support for IKVM (www.ikvm.net)\:the H2 Console now opens a browser window.
changelog_1171_li=Calling EXTRACT(HOUR FROM ...) or EXTRACT(HH FROM ...) returned the wrong values (0 to 11 instead of 0 to 23). All other tested databases return values from 0 to 23. Please check if your application relies on the old behavior before upgrading.
changelog_1171_li=The cache size was not correctly calculated for tables with large objects (specially if compression is used). This could lead to out-of-memory exceptions.
changelog_1172_li=For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
changelog_1172_li=The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
changelog_1173_li=Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
changelog_1173_li=The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
changelog_1174_li=Variables\:large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
changelog_1174_li=The acting as PostgreSQL server, when a base directory was set, and the H2 Console was started as well, the base directory was applied twice.
changelog_1175_li=Fulltext search is now supported in named in-memory databases.
changelog_1175_li=Calling EXTRACT(HOUR FROM ...) or EXTRACT(HH FROM ...) returned the wrong values (0 to 11 instead of 0 to 23). All other tested databases return values from 0 to 23. Please check if your application relies on the old behavior before upgrading.
changelog_1176_li=H2 Console\:multiple consecutive spaces in the setting name did not work. Fixed.
changelog_1176_li=For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
changelog_1177_h2=Version 1.0.65 (2008-01-18)
changelog_1177_li=Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
changelog_1178_li=The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
changelog_1178_li=Variables\:large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
changelog_1179_li=A recovery bug has been fixed. With older versions, it was necessary to add ;RECOVER\=1 to the database URL in cases where it should not have been required.
changelog_1179_li=Fulltext search is now supported in named in-memory databases.
changelog_1180_li=The performance for DROP and DROP ALL OBJECTS has been improved.
changelog_1180_li=H2 Console\:multiple consecutive spaces in the setting name did not work. Fixed.
changelog_1181_li=The ChangePassword API has been improved.
changelog_1181_h2=Version 1.0.65 (2008-01-18)
changelog_1182_li=User defined variables are now supported. Examples\:SET @VAR\=10;CALL @VAR. This can be used for running totals as in\:select x, set(@t, ifnull(@t, 0) + x) from system_range(1, 10)
changelog_1182_li=The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
changelog_1183_li=The Ukrainian translation has been improved.
changelog_1183_li=A recovery bug has been fixed. With older versions, it was necessary to add ;RECOVER\=1 to the database URL in cases where it should not have been required.
changelog_1184_li=CALL statements can now be used in batch updates and called using Statement.executeUpdate.
changelog_1184_li=The performance for DROP and DROP ALL OBJECTS has been improved.
changelog_1185_li=New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
changelog_1185_li=The ChangePassword API has been improved.
changelog_1186_li=The optimizer did not use multi column indexes for range queries in some cases. Fixed.
changelog_1186_li=User defined variables are now supported. Examples\:SET @VAR\=10;CALL @VAR. This can be used for running totals as in\:select x, set(@t, ifnull(@t, 0) + x) from system_range(1, 10)
changelog_1187_li=The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
changelog_1187_li=The Ukrainian translation has been improved.
changelog_1188_li=The bind IP address can now be set when using multi-homed host (if multiple network adapters are available) using the system property h2.bindAddress.
changelog_1188_li=CALL statements can now be used in batch updates and called using Statement.executeUpdate.
changelog_1189_li=Batch update\:Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
changelog_1189_li=New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
changelog_1190_li=Indexes of unique or foreign constraints where not dropped when the constraint was dropped after altering the table (for example dropping a column). Fixed.
changelog_1190_li=The optimizer did not use multi column indexes for range queries in some cases. Fixed.
changelog_1191_li=The performance for large result sets in the server mode has been improved.
changelog_1191_li=The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
changelog_1192_li=The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
changelog_1192_li=The bind IP address can now be set when using multi-homed host (if multiple network adapters are available) using the system property h2.bindAddress.
changelog_1193_li=The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
changelog_1193_li=Batch update\:Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
changelog_1194_li=The SCRIPT command did not split up CLOB data correctly. Fixed.
changelog_1194_li=Indexes of unique or foreign constraints where not dropped when the constraint was dropped after altering the table (for example dropping a column). Fixed.
changelog_1195_li=Optimization for single column distinct queries with an index\:select distinct name from test. Can be disabled by setting the system property h2.optimizeDistinct to false.
changelog_1195_li=The performance for large result sets in the server mode has been improved.
changelog_1196_li=DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
changelog_1196_li=The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
changelog_1197_li=PostgreSQL compatibility\:COUNT(T.*) is now supported.
changelog_1197_li=The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
changelog_1198_li=LIKE comparisons are now faster.
changelog_1198_li=The SCRIPT command did not split up CLOB data correctly. Fixed.
changelog_1199_li=Encrypted databases are now faster.
changelog_1199_li=Optimization for single column distinct queries with an index\:select distinct name from test. Can be disabled by setting the system property h2.optimizeDistinct to false.
changelog_1200_h2=Version 1.0.64 (2007-12-27)
changelog_1200_li=DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
changelog_1201_li=3-way union queries with prepared statement or views could return the wrong results. Fixed.
changelog_1201_li=PostgreSQL compatibility\:COUNT(T.*) is now supported.
changelog_1202_li=The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
changelog_1202_li=LIKE comparisons are now faster.
changelog_1203_li=CSV tool\:some escape/separator character combinations did not work. Fixed.
changelog_1203_li=Encrypted databases are now faster.
changelog_1204_li=CSV tool\:the character \#could not be used as a separator when reading.
changelog_1204_h2=Version 1.0.64 (2007-12-27)
changelog_1205_li=Recovery\:when the index file is corrupt, now the database deletes it and re-creates it automatically.
changelog_1205_li=3-way union queries with prepared statement or views could return the wrong results. Fixed.
changelog_1206_li=The MVCC mode did not work well with in-memory databases. Fixed.
changelog_1206_li=The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
changelog_1207_li=The FTP server now supports a event listener. Thanks Fulvio Biondi for the help\!
changelog_1207_li=CSV tool\:some escape/separator character combinations did not work. Fixed.
changelog_1208_li=New system function CANCEL_SESSION to cancel the currently executing statement of another session.
changelog_1208_li=CSV tool\:the character \#could not be used as a separator when reading.
changelog_1209_li=The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
changelog_1209_li=Recovery\:when the index file is corrupt, now the database deletes it and re-creates it automatically.
changelog_1210_li=H2 Console\:when editing result sets, columns can now be set to null. The text 'null' must be escaped using '\=null'.
changelog_1210_li=The MVCC mode did not work well with in-memory databases. Fixed.
changelog_1211_li=New built-in functions RPAD and LPAD.
changelog_1211_li=The FTP server now supports a event listener. Thanks Fulvio Biondi for the help\!
changelog_1212_li=New meta data table INFORMATION_SCHEMA.SESSIONS and LOCKS to get information about active connections and locks. Admins will see all connections, non-admins only their own session.
changelog_1212_li=New system function CANCEL_SESSION to cancel the currently executing statement of another session.
changelog_1213_li=The Ukrainian translation was not working in the last release. Fixed.
changelog_1213_li=The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
changelog_1214_li=Creating many tables (many hundreds) was slow. Fixed.
changelog_1214_li=H2 Console\:when editing result sets, columns can now be set to null. The text 'null' must be escaped using '\=null'.
changelog_1215_li=Opening a database with many indexes (thousands) was slow. Fixed.
changelog_1215_li=New built-in functions RPAD and LPAD.
changelog_1216_li=H2 Console / autocomplete\:Ctrl+Space now shows the list in all modes.
changelog_1216_li=New meta data table INFORMATION_SCHEMA.SESSIONS and LOCKS to get information about active connections and locks. Admins will see all connections, non-admins only their own session.
changelog_1217_li=The method Trigger.init has been changed\:the parameters 'before' and 'type', have been added to the init method.
changelog_1217_li=The Ukrainian translation was not working in the last release. Fixed.
changelog_1218_li=The performance has been improved for ResultSet methods with column name.
changelog_1218_li=Creating many tables (many hundreds) was slow. Fixed.
changelog_1219_li=A stack trace was thrown if the system did not provide a quick secure random source and if there is no network or the network settings are not configured. Fixed.
changelog_1219_li=Opening a database with many indexes (thousands) was slow. Fixed.
changelog_1220_li=The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar\!
changelog_1220_li=H2 Console / autocomplete\:Ctrl+Space now shows the list in all modes.
changelog_1221_li=Improved debugging support\:toString methods of most object now return a meaningful text.
changelog_1221_li=The method Trigger.init has been changed\:the parameters 'before' and 'type', have been added to the init method.
changelog_1222_li=The classes DbStarter and WebServlet have been moved to src/main.
changelog_1222_li=The performance has been improved for ResultSet methods with column name.
changelog_1223_li=The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
changelog_1223_li=A stack trace was thrown if the system did not provide a quick secure random source and if there is no network or the network settings are not configured. Fixed.
changelog_1224_li=Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
changelog_1224_li=The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar\!
changelog_1225_li=The database could not be used in Java applets due to security exceptions. Fixed.
changelog_1225_li=Improved debugging support\:toString methods of most object now return a meaningful text.
changelog_1226_h2=Version 1.0.63 (2007-12-02)
changelog_1226_li=The classes DbStarter and WebServlet have been moved to src/main.
changelog_1227_li=The SecurePassword example has been improved.
changelog_1227_li=The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
changelog_1228_li=In time zones where the summer time saving limit is at midnight, some dates do not work in some virtual machines, for example 2007-10-14 in Chile, using the Sun JVM 1.6.0_03-b05. Fixed.
changelog_1228_li=Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
changelog_1229_li=The native fulltext search was not working properly after re-connecting.
changelog_1229_li=The database could not be used in Java applets due to security exceptions. Fixed.
changelog_1230_li=Improved FTP server\:now the PORT command is supported.
changelog_1230_h2=Version 1.0.63 (2007-12-02)
changelog_1231_li=Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
changelog_1231_li=The SecurePassword example has been improved.
changelog_1232_li=Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin\=true
changelog_1232_li=In time zones where the summer time saving limit is at midnight, some dates do not work in some virtual machines, for example 2007-10-14 in Chile, using the Sun JVM 1.6.0_03-b05. Fixed.
changelog_1233_li=The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot\!
changelog_1233_li=The native fulltext search was not working properly after re-connecting.
changelog_1234_li=New function TABLE_DISTINCT.
changelog_1234_li=Improved FTP server\:now the PORT command is supported.
changelog_1235_li=Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
changelog_1235_li=Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
changelog_1236_li=Certain setting in the Server didn't work (http\://code.google.com/p/h2database/issues/detail?id\=7).
changelog_1236_li=Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin\=true
changelog_1237_h2=Version 1.0.62 (2007-11-25)
changelog_1237_li=The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot\!
changelog_1238_li=Large updates and deletes are now supported by buffering data to disk if required. The threshold is currently set to 100'000 bytes and can be changed using SET MAX_OPERATION_MEMORY or using by appending ;MAX_OPERATION_MEMORY\=.. to the database URL. See also the docs.
changelog_1238_li=New function TABLE_DISTINCT.
changelog_1239_li=MVCC\:now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
changelog_1239_li=Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
changelog_1240_li=Referential integrity checks didn't lock the referenced table, and thus could read uncommitted rows of other connections. In that way the referential constraints could get violated (except when using MVCC).
changelog_1240_li=Certain setting in the Server didn't work (http\://code.google.com/p/h2database/issues/detail?id\=7).
changelog_1241_li=Renaming or dropping a user with a schema, or removing the admin property of that user made the schema inaccessible after re-opening the database. Fixed.
changelog_1241_h2=Version 1.0.62 (2007-11-25)
changelog_1242_li=The H2 Console now also support the command line option -ifExists when started from the Server tool, but only when connecting to H2 databases.
changelog_1242_li=Large updates and deletes are now supported by buffering data to disk if required. The threshold is currently set to 100'000 bytes and can be changed using SET MAX_OPERATION_MEMORY or using by appending ;MAX_OPERATION_MEMORY\=.. to the database URL. See also the docs.
changelog_1243_li=Duplicate column names were not detected when renaming columns. Fixed.
changelog_1243_li=MVCC\:now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
changelog_1244_li=The console did not display multiple embedded spaces in text correctly. Fixed.
changelog_1244_li=Referential integrity checks didn't lock the referenced table, and thus could read uncommitted rows of other connections. In that way the referential constraints could get violated (except when using MVCC).
changelog_1245_li=Google Android support\:use 'ant codeswitchAndroid' to switch the source code to Android.
changelog_1245_li=Renaming or dropping a user with a schema, or removing the admin property of that user made the schema inaccessible after re-opening the database. Fixed.
changelog_1246_li=Values of type ARRAY are now sorted as in PostgreSQL.
changelog_1246_li=The H2 Console now also support the command line option -ifExists when started from the Server tool, but only when connecting to H2 databases.
changelog_1247_li=In the cluster mode, could not connect if only one server was running (last release only). Fixed.
changelog_1247_li=Duplicate column names were not detected when renaming columns. Fixed.
changelog_1248_li=The performance of large CSV operations has been improved.
changelog_1248_li=The console did not display multiple embedded spaces in text correctly. Fixed.
changelog_1249_li=Now using custom toString() for most JDBC objects and commands.
changelog_1249_li=Google Android support\:use 'ant codeswitchAndroid' to switch the source code to Android.
changelog_1250_li=Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
changelog_1250_li=Values of type ARRAY are now sorted as in PostgreSQL.
changelog_1251_li=CSV\:Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
changelog_1251_li=In the cluster mode, could not connect if only one server was running (last release only). Fixed.
changelog_1252_li=A patch for Apache DDL Utils is available at https\://issues.apache.org/jira/browse/DDLUTILS-185
changelog_1252_li=The performance of large CSV operations has been improved.
changelog_1253_li=The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
changelog_1253_li=Now using custom toString() for most JDBC objects and commands.
changelog_1254_li=Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot\!
changelog_1254_li=Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
changelog_1255_li=Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
changelog_1255_li=CSV\:Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
changelog_1256_h2=Version 1.0.61 (2007-11-10)
changelog_1256_li=A patch for Apache DDL Utils is available at https\://issues.apache.org/jira/browse/DDLUTILS-185
changelog_1257_li=The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
changelog_1257_li=The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
changelog_1258_li=Added more tests. The code coverage is now at 83%.
changelog_1258_li=Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot\!
changelog_1259_li=ResultSetMetaData.getColumnDisplaySize was calculated as the longest display size for the given result set, but should be the maximum size that fits in the column. Fixed.
changelog_1259_li=Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
changelog_1260_li=The MODE used to be a global setting, now it is a database level setting.
changelog_1260_h2=Version 1.0.61 (2007-11-10)
changelog_1261_li=The database does now always round to the nearest number when converting a floating point to a integer\:CAST(1.5 AS INT) will now result in 2, like in PostgreSQL and MySQL.
changelog_1261_li=The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
changelog_1262_li=Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
changelog_1262_li=Added more tests. The code coverage is now at 83%.
changelog_1263_li=INSTR, LOCATE\:backward searching is not supported by using a negative start position.
changelog_1263_li=ResultSetMetaData.getColumnDisplaySize was calculated as the longest display size for the given result set, but should be the maximum size that fits in the column. Fixed.
changelog_1264_li=Can now open a database stored in a jar or zip file (for example, jdbc\:h2\:zip\:c\:/temp/h2.zip\!/test).
changelog_1264_li=The MODE used to be a global setting, now it is a database level setting.
changelog_1265_li=Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
changelog_1265_li=The database does now always round to the nearest number when converting a floating point to a integer\:CAST(1.5 AS INT) will now result in 2, like in PostgreSQL and MySQL.
changelog_1266_li=Vlad Alexahin has translated H2 Console to Russian. Thanks a lot\!
changelog_1266_li=Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
changelog_1267_li=Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
changelog_1267_li=INSTR, LOCATE\:backward searching is not supported by using a negative start position.
changelog_1268_li=Solved a Java level deadlock in the DatabaseCloser.
changelog_1268_li=Can now open a database stored in a jar or zip file (for example, jdbc\:h2\:zip\:c\:/temp/h2.zip\!/test).
changelog_1269_li=CREATE SEQUENCE\:New option CACHE (number of pre-allocated numbers). New column CACHE in the sequence meta data table. The default cache size is still 32.
changelog_1269_li=Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
changelog_1270_li=MVCC\:The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
changelog_1270_li=Vlad Alexahin has translated H2 Console to Russian. Thanks a lot\!
changelog_1271_h2=Version 1.0.60 (2007-10-20)
changelog_1271_li=Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
changelog_1272_li=JdbcXAConnection\:starting a transaction before getting the connection didn't switch off autocommit.
changelog_1272_li=Solved a Java level deadlock in the DatabaseCloser.
changelog_1273_li=User defined aggregate functions are not supported.
changelog_1273_li=CREATE SEQUENCE\:New option CACHE (number of pre-allocated numbers). New column CACHE in the sequence meta data table. The default cache size is still 32.
changelog_1274_li=Server.shutdownTcpServer was blocked when first called with force\=false and then force\=true. Now documentation is improved, and it is no longer blocked.
changelog_1274_li=MVCC\:The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
changelog_1275_li=Stack traces did not include the SQL statement in all cases where they could have. Also, stack traces with SQL statement are now shorter.
changelog_1275_h2=Version 1.0.60 (2007-10-20)
changelog_1276_li=Linked tables\:now tables in non-default schemas are supported as well
changelog_1276_li=JdbcXAConnection\:starting a transaction before getting the connection didn't switch off autocommit.
changelog_1277_li=New Italian translation from PierPaolo Ucchino. Thanks a lot\!
changelog_1277_li=User defined aggregate functions are not supported.
changelog_1278_li=CSV\:New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
changelog_1278_li=Server.shutdownTcpServer was blocked when first called with force\=false and then force\=true. Now documentation is improved, and it is no longer blocked.
changelog_1279_li=Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
changelog_1279_li=Stack traces did not include the SQL statement in all cases where they could have. Also, stack traces with SQL statement are now shorter.
changelog_1280_li=PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
changelog_1280_li=Linked tables\:now tables in non-default schemas are supported as well
changelog_1281_li=The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
changelog_1281_li=New Italian translation from PierPaolo Ucchino. Thanks a lot\!
changelog_1282_li=CSVREAD, RUNSCRIPT and so on now support URLs as well, using URL.openStream(). Example\:select * from csvread('jar\:file\:///c\:/temp/test.jar\!/test.csv');
changelog_1282_li=CSV\:New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
changelog_1283_h2=Version 1.0.59 (2007-10-03)
changelog_1283_li=Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
changelog_1284_li=When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
changelog_1284_li=PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
changelog_1285_li=If the process was killed while the database was running, sometimes the database could not be opened ('double allocation') except when the system property h2.check was set to false. Fixed.
changelog_1285_li=The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
changelog_1286_li=Multi-threaded kernel (MULTI_THREADED\=1)\:A synchronization problem has been fixed.
changelog_1286_li=CSVREAD, RUNSCRIPT and so on now support URLs as well, using URL.openStream(). Example\:select * from csvread('jar\:file\:///c\:/temp/test.jar\!/test.csv');
changelog_1287_li=A PreparedStatement that was cancelled could not be reused. Fixed.
changelog_1287_h2=Version 1.0.59 (2007-10-03)
changelog_1288_li=H2 Console\:Progress information when logging into a H2 embedded database (useful when opening a database is slow).
changelog_1288_li=When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
changelog_1289_li=When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
changelog_1289_li=If the process was killed while the database was running, sometimes the database could not be opened ('double allocation') except when the system property h2.check was set to false. Fixed.
changelog_1290_li=Fulltext search is now documented (in the Tutorial).
changelog_1290_li=Multi-threaded kernel (MULTI_THREADED\=1)\:A synchronization problem has been fixed.
changelog_1291_li=The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
changelog_1291_li=A PreparedStatement that was cancelled could not be reused. Fixed.
changelog_1292_li=When creating a table using CREATE TABLE .. AS SELECT, the precision for some data types (for example VARCHAR) was set to the default precision. Fixed.
changelog_1292_li=H2 Console\:Progress information when logging into a H2 embedded database (useful when opening a database is slow).
changelog_1293_li=When using the (undocumented) in-memory file system (jdbc\:h2\:memFS\:x or jdbc\:h2\:memLZF\:x), and using multiple connections, a ConcurrentModificationException could occur. Fixed.
changelog_1293_li=When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
changelog_1294_li=REGEXP compatibility\:So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
changelog_1294_li=Fulltext search is now documented (in the Tutorial).
changelog_1295_li=SCRIPT\:the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
changelog_1295_li=The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
changelog_1296_li=When using a subquery with group by as a table, some columns could not be used in the where condition in the outer query. Example\:SELECT * FROM (SELECT ID, COUNT(*) C FROM TEST) WHERE C > 100. Fixed.
changelog_1296_li=When creating a table using CREATE TABLE .. AS SELECT, the precision for some data types (for example VARCHAR) was set to the default precision. Fixed.
changelog_1297_li=Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
changelog_1297_li=When using the (undocumented) in-memory file system (jdbc\:h2\:memFS\:x or jdbc\:h2\:memLZF\:x), and using multiple connections, a ConcurrentModificationException could occur. Fixed.
changelog_1298_li=Compatibility\:comparing columns with constants that are out of range does not throw an exception.
changelog_1298_li=REGEXP compatibility\:So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
changelog_1299_h2=Version 1.0.58 (2007-09-15)
changelog_1299_li=SCRIPT\:the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
changelog_1300_li=System.exit is no longer called by the WebServer, the Console and the Server tool (except to set the exit code if required). This is important when using OSGi.
changelog_1300_li=When using a subquery with group by as a table, some columns could not be used in the where condition in the outer query. Example\:SELECT * FROM (SELECT ID, COUNT(*) C FROM TEST) WHERE C > 100. Fixed.
changelog_1301_li=Optimization for independent subqueries. For example, this query can now an index\:SELECT * FROM TEST WHERE ID \=(SELECT MAX(ID) FROM TEST) This can be disabled by setting the system property h2.optimizeSubqueryCache to false.
changelog_1301_li=Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
changelog_1302_li=The explain plan now says\:/* direct lookup query */ if the query can be processed directly without reading rows, for example when using MIN(indexed column), MAX(indexed column), or COUNT(*).
changelog_1302_li=Compatibility\:comparing columns with constants that are out of range does not throw an exception.
changelog_1303_li=When using IFNULL, NULLIF, COALESCE, LEAST, or GREATEST, and the first parameter was ?, an exception was thrown. Now the highest data type of all parameters is used.
changelog_1303_h2=Version 1.0.58 (2007-09-15)
changelog_1304_li=When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
changelog_1304_li=System.exit is no longer called by the WebServer, the Console and the Server tool (except to set the exit code if required). This is important when using OSGi.
changelog_1305_li=Maven 2\:new version are now automatically synced with the central repositories.
changelog_1305_li=Optimization for independent subqueries. For example, this query can now an index\:SELECT * FROM TEST WHERE ID \=(SELECT MAX(ID) FROM TEST) This can be disabled by setting the system property h2.optimizeSubqueryCache to false.
changelog_1306_li=The default value for MAX_MEMORY_UNDO is now 100000.
changelog_1306_li=The explain plan now says\:/* direct lookup query */ if the query can be processed directly without reading rows, for example when using MIN(indexed column), MAX(indexed column), or COUNT(*).
changelog_1307_li=The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
changelog_1307_li=When using IFNULL, NULLIF, COALESCE, LEAST, or GREATEST, and the first parameter was ?, an exception was thrown. Now the highest data type of all parameters is used.
changelog_1308_li=Oracle compatibility\:SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
changelog_1308_li=When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
changelog_1309_li=After deleting data, empty space in the database files was not efficiently reused (but it was reused when opening the database). This has been fixed.
changelog_1309_li=Maven 2\:new version are now automatically synced with the central repositories.
changelog_1310_li=About 230 bytes per database was leaked. This is a problem for applications opening and closing many thousand databases. The main problem\:a shutdown hook was added but never removed. Fixed. In JDK 1.4, there is <a href\="http\://bugs.sun.com/bugdatabase/view_bug.do?bug_id\=4197876">an additionally problem</a> . A workaround has been implemented.
changelog_1310_li=The default value for MAX_MEMORY_UNDO is now 100000.
changelog_1311_li=Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
changelog_1311_li=The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
changelog_1312_li=Using spaces in column and table aliases was not supported when used inside a view or temporary view.
changelog_1312_li=Oracle compatibility\:SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
changelog_1313_li=The version (build) number is now included in the manifest file.
changelog_1313_li=After deleting data, empty space in the database files was not efficiently reused (but it was reused when opening the database). This has been fixed.
changelog_1314_li=In some systems, SecureRandom.generateSeed is very slow (taking one minute or more). For those cases, an alternative method is used that takes less than one second.
changelog_1314_li=About 230 bytes per database was leaked. This is a problem for applications opening and closing many thousand databases. The main problem\:a shutdown hook was added but never removed. Fixed. In JDK 1.4, there is <a href\="http\://bugs.sun.com/bugdatabase/view_bug.do?bug_id\=4197876">an additionally problem</a> . A workaround has been implemented.
changelog_1315_li=The database file sizes are now increased at most 32 MB at any time.
changelog_1315_li=Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
changelog_1316_li=New method DatabaseEventListener.opened that is called just after opening a database.
changelog_1316_li=Using spaces in column and table aliases was not supported when used inside a view or temporary view.
changelog_1317_li=When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
changelog_1317_li=The version (build) number is now included in the manifest file.
changelog_1318_li=A database can now be opened even if class of a user defined function is not in the classpath. Trying to call the function will throws an exception.
changelog_1318_li=In some systems, SecureRandom.generateSeed is very slow (taking one minute or more). For those cases, an alternative method is used that takes less than one second.
changelog_1319_li=User defined functions and constants may not overload built-in functions and constants. This didn't work before, but now trying to create such an object will fail.
changelog_1319_li=The database file sizes are now increased at most 32 MB at any time.
changelog_1320_li=Improved MultiDimension tool (for spatial queries)\:in the last few releases the tool was actually slower than using a regular query (because index lookup got faster, and because the tool didn't support prepared statements) Now the tool generates prepared statements, and the performance is better again (about 5 times faster for a reasonable amount of data).
changelog_1320_li=New method DatabaseEventListener.opened that is called just after opening a database.
changelog_1321_li=Adding a foreign key or when re-enabling referential integrity for a table failed when checking was enabled and the reference contained NULL.
changelog_1321_li=When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
changelog_1322_li=For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
changelog_1322_li=A database can now be opened even if class of a user defined function is not in the classpath. Trying to call the function will throws an exception.
changelog_1323_li=Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
changelog_1323_li=User defined functions and constants may not overload built-in functions and constants. This didn't work before, but now trying to create such an object will fail.
changelog_1324_li=Improved MultiDimension tool (for spatial queries)\:in the last few releases the tool was actually slower than using a regular query (because index lookup got faster, and because the tool didn't support prepared statements) Now the tool generates prepared statements, and the performance is better again (about 5 times faster for a reasonable amount of data).
changelog_1325_li=Adding a foreign key or when re-enabling referential integrity for a table failed when checking was enabled and the reference contained NULL.
changelog_1326_li=For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
changelog_1327_li=Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
@@ -2637,7 +2641,7 @@ tutorial_1086_p=The TCP Server can be stopped from another process. To stop the
...
@@ -2637,7 +2641,7 @@ tutorial_1086_p=The TCP Server can be stopped from another process. To stop the
tutorial_1087_p=To stop the server from a user application, use the following code\:
tutorial_1087_p=To stop the server from a user application, use the following code\:
tutorial_1088_p=This function will call System.exit on the server. This function should be called after all connections to the databases are closed to avoid recovery when the databases are opened the next time. To stop remote server, remote connections must be enabled on the server.
tutorial_1088_p=This function will call System.exit on the server. This function should be called after all connections to the databases are closed to avoid recovery when the databases are opened the next time. To stop remote server, remote connections must be enabled on the server.
tutorial_1089_h2=Using Hibernate
tutorial_1089_h2=Using Hibernate
tutorial_1090_p=This database supports Hibernate version 3.1 and newer. You can use the HSQLDB Dialect, or the native H2 Dialect that is available in the file src/tools/org/h2/tools/hibernate/H2Dialect.txt. The H2 dialect is included in newer version of Hibernate. For versions where the dialect is missing, you need to copy the file into the folder src\\org\\hibernate\\dialect (Hibernate 3.1), rename it to H2Dialect.java and re-compile hibernate.
tutorial_1090_p=This database supports Hibernate version 3.1 and newer. You can use the HSQLDB Dialect, or the native H2 Dialect. Unfortunately the H2 Dialect included in Hibernate is buggy. A <a href\="http\://opensource.atlassian.com/projects/hibernate/browse/HHH-3401">patch for Hibernate</a> has been submitted. The dialect for the newest version of Hibernate is also available at src/tools/org/hibernate/dialect/H2Dialect.java.txt. You can rename it to H2Dialect.java and include this as a patch in your application.
tutorial_1091_h2=Using Databases in Web Applications
tutorial_1091_h2=Using Databases in Web Applications
tutorial_1092_p=There are multiple ways to access a database from within web applications. Here are some examples if you use Tomcat or JBoss.
tutorial_1092_p=There are multiple ways to access a database from within web applications. Here are some examples if you use Tomcat or JBoss.
