Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
@changelog_1003_li
@changelog_1003_li
Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
@changelog_1004_li
@changelog_1004_li
When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
@changelog_1005_li
@changelog_1005_li
Referential constraint checking improvement: now the constraint is only checked if the key column values change.
When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
@changelog_1006_li
@changelog_1006_li
Some database metadata calls returned the wrong data type for DATA_TYPE columns.
Referential constraint checking improvement: now the constraint is only checked if the key column values change.
@changelog_1007_li
@changelog_1007_li
The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
Some database metadata calls returned the wrong data type for DATA_TYPE columns.
@changelog_1008_li
@changelog_1008_li
The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
@changelog_1009_li
@changelog_1009_li
The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
@changelog_1010_li
@changelog_1010_li
The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
@changelog_1011_li
Stopping a WebServer didn't always work. Fixed.
Stopping a WebServer didn't always work. Fixed.
@changelog_1011_h2
@changelog_1012_h2
Version 1.0.74 (2008-06-21)
Version 1.0.74 (2008-06-21)
@changelog_1012_li
@changelog_1013_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_1013_li
@changelog_1014_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_1014_li
@changelog_1015_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_1015_li
@changelog_1016_li
The ChangePassword tool is now called ChangeFileEncryption.
The ChangePassword tool is now called ChangeFileEncryption.
@changelog_1016_li
@changelog_1017_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_1017_li
@changelog_1018_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_1018_li
@changelog_1019_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_1019_li
@changelog_1020_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_1020_li
@changelog_1021_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_1021_li
@changelog_1022_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_1022_li
@changelog_1023_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_1023_li
@changelog_1024_li
Deadlocks are now detected. One transaction is rolled back automatically.
Deadlocks are now detected. One transaction is rolled back automatically.
@changelog_1024_li
@changelog_1025_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_1025_li
@changelog_1026_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_1026_h2
@changelog_1027_h2
Version 1.0.73 (2008-05-31)
Version 1.0.73 (2008-05-31)
@changelog_1027_li
@changelog_1028_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_1028_li
@changelog_1029_li
The table SYSTEM_RANGE now supports expressions and parameters.
The table SYSTEM_RANGE now supports expressions and parameters.
@changelog_1029_li
@changelog_1030_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_1030_li
@changelog_1031_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_1031_li
@changelog_1032_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_1032_li
@changelog_1033_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_1033_li
@changelog_1034_li
PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
@changelog_1034_li
@changelog_1035_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_1035_li
@changelog_1036_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_1036_li
@changelog_1037_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_1037_li
@changelog_1038_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_1038_li
@changelog_1039_li
The fulltext search did not support CLOB data types.
The fulltext search did not support CLOB data types.
@changelog_1039_li
@changelog_1040_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_1040_li
@changelog_1041_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_1041_li
@changelog_1042_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_1042_h2
@changelog_1043_h2
Version 1.0.72 (2008-05-10)
Version 1.0.72 (2008-05-10)
@changelog_1043_li
@changelog_1044_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_1044_li
@changelog_1045_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_1045_li
@changelog_1046_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_1046_li
@changelog_1047_li
ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
@changelog_1047_li
@changelog_1048_li
H2 Shell: DESCRIBE now supports an schema name.
H2 Shell: DESCRIBE now supports an schema name.
@changelog_1048_li
@changelog_1049_li
A subset of the PostgreSQL 'dollar quoting' feature is now supported.
A subset of the PostgreSQL 'dollar quoting' feature is now supported.
@changelog_1049_li
@changelog_1050_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_1050_li
@changelog_1051_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_1051_li
@changelog_1052_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_1052_li
@changelog_1053_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_1053_li
@changelog_1054_li
Statements can now be cancelled remotely (when using remote connections).
Statements can now be cancelled remotely (when using remote connections).
@changelog_1054_li
@changelog_1055_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_1055_li
@changelog_1056_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_1056_h2
@changelog_1057_h2
Version 1.0.71 (2008-04-25)
Version 1.0.71 (2008-04-25)
@changelog_1057_li
@changelog_1058_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_1058_li
@changelog_1059_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_1059_li
@changelog_1060_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_1060_li
@changelog_1061_li
New traditional Chinese translation. Thanks a lot to Derek Chao!
New traditional Chinese translation. Thanks a lot to Derek Chao!
@changelog_1061_li
@changelog_1062_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_1062_h2
@changelog_1063_h2
Version 1.0.70 (2008-04-20)
Version 1.0.70 (2008-04-20)
@changelog_1063_li
@changelog_1064_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_1064_li
@changelog_1065_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_1065_li
@changelog_1066_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_1066_li
@changelog_1067_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_1067_li
@changelog_1068_li
The precision if SUBSTR is now calculated if possible.
The precision if SUBSTR is now calculated if possible.
@changelog_1068_li
@changelog_1069_li
The autocomplete in the H2 Console has been improved a bit.
The autocomplete in the H2 Console has been improved a bit.
@changelog_1069_li
@changelog_1070_li
The tools in the H2 Console are now translatable.
The tools in the H2 Console are now translatable.
@changelog_1070_li
@changelog_1071_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_1071_li
@changelog_1072_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_1072_li
@changelog_1073_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_1073_li
@changelog_1074_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_1074_li
@changelog_1075_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_1075_li
@changelog_1076_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_1078_li
@changelog_1079_li
Optimization for MIN() and MAX() when using MVCC.
Optimization for MIN() and MAX() when using MVCC.
@changelog_1079_li
@changelog_1080_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_1080_li
@changelog_1081_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_1081_li
@changelog_1082_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_1082_li
@changelog_1083_li
OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
@changelog_1083_li
@changelog_1084_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_1084_li
@changelog_1085_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_1085_li
@changelog_1086_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_1086_h2
@changelog_1087_h2
Version 1.0.69 (2008-03-29)
Version 1.0.69 (2008-03-29)
@changelog_1087_li
@changelog_1088_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_1088_li
@changelog_1089_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_1089_li
@changelog_1090_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_1090_li
@changelog_1091_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_1091_li
@changelog_1092_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_1092_li
@changelog_1093_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_1093_li
@changelog_1094_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_1094_li
@changelog_1095_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_1095_li
@changelog_1096_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_1096_li
@changelog_1097_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_1097_li
@changelog_1098_li
The recovery tool didn't work correctly for tables without rows.
The recovery tool didn't work correctly for tables without rows.
@changelog_1098_li
@changelog_1099_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_1099_li
@changelog_1100_li
CSVWRITE caused a NullPointerException when not specifying a nullString.
CSVWRITE caused a NullPointerException when not specifying a nullString.
@changelog_1100_li
@changelog_1101_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_1101_li
@changelog_1102_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_1102_li
@changelog_1103_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_1103_h2
@changelog_1104_h2
Version 1.0.68 (2008-03-18)
Version 1.0.68 (2008-03-18)
@changelog_1104_li
@changelog_1105_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_1105_li
@changelog_1106_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_1106_li
@changelog_1107_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_1107_li
@changelog_1108_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_1108_li
@changelog_1109_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_1109_li
@changelog_1110_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_1110_li
@changelog_1111_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_1111_li
@changelog_1112_li
H2 Console: autocomplete didn't work with very large scripts. Fixed.
H2 Console: autocomplete didn't work with very large scripts. Fixed.
@changelog_1112_li
@changelog_1113_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_1113_li
@changelog_1114_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_1114_li
@changelog_1115_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_1115_li
@changelog_1116_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_1116_li
@changelog_1117_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_1117_li
@changelog_1118_li
H2 Console: the start window works better with IKVM
H2 Console: the start window works better with IKVM
@changelog_1118_li
@changelog_1119_li
H2 Console: improved compatibility with Safari (Safari requires keep-alive)
H2 Console: improved compatibility with Safari (Safari requires keep-alive)
@changelog_1119_li
@changelog_1120_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_1120_li
@changelog_1121_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_1121_li
@changelog_1122_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_1122_li
@changelog_1123_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_1123_li
@changelog_1124_li
Some long running queries could not be cancelled.
Some long running queries could not be cancelled.
@changelog_1124_li
@changelog_1125_li
Queries with many outer join tables were very slow. Fixed.
Queries with many outer join tables were very slow. Fixed.
@changelog_1125_li
@changelog_1126_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_1126_li
@changelog_1127_li
UPDATE SET column=DEFAULT is now supported.
UPDATE SET column=DEFAULT is now supported.
@changelog_1127_h2
@changelog_1128_h2
Version 1.0.67 (2008-02-22)
Version 1.0.67 (2008-02-22)
@changelog_1128_li
@changelog_1129_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_1129_li
@changelog_1130_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_1130_li
@changelog_1131_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_1131_li
@changelog_1132_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_1132_li
@changelog_1133_li
The CSV tool now supports a custom lineSeparator.
The CSV tool now supports a custom lineSeparator.
@changelog_1133_li
@changelog_1134_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_1134_li
@changelog_1135_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_1135_li
@changelog_1136_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_1136_li
@changelog_1137_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_1137_li
@changelog_1138_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_1138_li
@changelog_1139_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_1139_li
@changelog_1140_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_1140_li
@changelog_1141_li
Large result sets are now a bit faster.
Large result sets are now a bit faster.
@changelog_1141_li
@changelog_1142_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_1142_li
@changelog_1143_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_1143_li
@changelog_1144_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_1144_li
@changelog_1145_li
Statement.setQueryTimeout() is now supported.
Statement.setQueryTimeout() is now supported.
@changelog_1145_li
@changelog_1146_li
New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
@changelog_1146_li
@changelog_1147_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_1147_li
@changelog_1148_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_1148_li
@changelog_1149_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_1149_li
@changelog_1150_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_1150_h2
@changelog_1151_h2
Version 1.0.66 (2008-02-02)
Version 1.0.66 (2008-02-02)
@changelog_1151_li
@changelog_1152_li
There is a new online error analyzer tool.
There is a new online error analyzer tool.
@changelog_1152_li
@changelog_1153_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_1153_li
@changelog_1154_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_1154_li
@changelog_1155_li
The exception 'Value too long for column' now includes the data.
The exception 'Value too long for column' now includes the data.
@changelog_1155_li
@changelog_1156_li
The table name was missing in the documentation of CREATE INDEX.
The table name was missing in the documentation of CREATE INDEX.
@changelog_1156_li
@changelog_1157_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_1157_li
@changelog_1158_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_1158_li
@changelog_1159_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_1159_li
@changelog_1160_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_1160_li
@changelog_1161_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_1161_li
@changelog_1162_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_1162_li
@changelog_1163_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_1163_li
@changelog_1164_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_1164_li
@changelog_1165_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_1165_li
@changelog_1166_li
Fulltext search is now supported in named in-memory databases.
Fulltext search is now supported in named in-memory databases.
@changelog_1166_li
@changelog_1167_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_1167_h2
@changelog_1168_h2
Version 1.0.65 (2008-01-18)
Version 1.0.65 (2008-01-18)
@changelog_1168_li
@changelog_1169_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_1169_li
@changelog_1170_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_1170_li
@changelog_1171_li
The performance for DROP and DROP ALL OBJECTS has been improved.
The performance for DROP and DROP ALL OBJECTS has been improved.
@changelog_1171_li
@changelog_1172_li
The ChangePassword API has been improved.
The ChangePassword API has been improved.
@changelog_1172_li
@changelog_1173_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_1173_li
@changelog_1174_li
The Ukrainian translation has been improved.
The Ukrainian translation has been improved.
@changelog_1174_li
@changelog_1175_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_1175_li
@changelog_1176_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_1176_li
@changelog_1177_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_1177_li
@changelog_1178_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_1178_li
@changelog_1179_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_1179_li
@changelog_1180_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_1180_li
@changelog_1181_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_1181_li
@changelog_1182_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_1182_li
@changelog_1183_li
The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
@changelog_1183_li
@changelog_1184_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_1184_li
@changelog_1185_li
The SCRIPT command did not split up CLOB data correctly. Fixed.
The SCRIPT command did not split up CLOB data correctly. Fixed.
@changelog_1185_li
@changelog_1186_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_1186_li
@changelog_1187_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_1187_li
@changelog_1188_li
PostgreSQL compatibility: COUNT(T.*) is now supported.
PostgreSQL compatibility: COUNT(T.*) is now supported.
@changelog_1188_li
@changelog_1189_li
LIKE comparisons are now faster.
LIKE comparisons are now faster.
@changelog_1189_li
@changelog_1190_li
Encrypted databases are now faster.
Encrypted databases are now faster.
@changelog_1190_h2
@changelog_1191_h2
Version 1.0.64 (2007-12-27)
Version 1.0.64 (2007-12-27)
@changelog_1191_li
@changelog_1192_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_1192_li
@changelog_1193_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_1193_li
@changelog_1194_li
CSV tool: some escape/separator character combinations did not work. Fixed.
CSV tool: some escape/separator character combinations did not work. Fixed.
@changelog_1194_li
@changelog_1195_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_1195_li
@changelog_1196_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_1196_li
@changelog_1197_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_1197_li
@changelog_1198_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_1198_li
@changelog_1199_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_1199_li
@changelog_1200_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_1200_li
@changelog_1201_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_1201_li
@changelog_1202_li
New built-in functions RPAD and LPAD.
New built-in functions RPAD and LPAD.
@changelog_1202_li
@changelog_1203_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_1203_li
@changelog_1204_li
The Ukrainian translation was not working in the last release. Fixed.
The Ukrainian translation was not working in the last release. Fixed.
@changelog_1204_li
@changelog_1205_li
Creating many tables (many hundreds) was slow. Fixed.
Creating many tables (many hundreds) was slow. Fixed.
@changelog_1205_li
@changelog_1206_li
Opening a database with many indexes (thousands) was slow. Fixed.
Opening a database with many indexes (thousands) was slow. Fixed.
@changelog_1206_li
@changelog_1207_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_1207_li
@changelog_1208_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_1208_li
@changelog_1209_li
The performance has been improved for ResultSet methods with column name.
The performance has been improved for ResultSet methods with column name.
@changelog_1209_li
@changelog_1210_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_1210_li
@changelog_1211_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_1211_li
@changelog_1212_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_1212_li
@changelog_1213_li
The classes DbStarter and WebServlet have been moved to src/main.
The classes DbStarter and WebServlet have been moved to src/main.
@changelog_1213_li
@changelog_1214_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_1214_li
@changelog_1215_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_1215_li
@changelog_1216_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_1216_h2
@changelog_1217_h2
Version 1.0.63 (2007-12-02)
Version 1.0.63 (2007-12-02)
@changelog_1217_li
@changelog_1218_li
The SecurePassword example has been improved.
The SecurePassword example has been improved.
@changelog_1218_li
@changelog_1219_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_1219_li
@changelog_1220_li
The native fulltext search was not working properly after re-connecting.
The native fulltext search was not working properly after re-connecting.
@changelog_1220_li
@changelog_1221_li
Improved FTP server: now the PORT command is supported.
Improved FTP server: now the PORT command is supported.
@changelog_1221_li
@changelog_1222_li
Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
@changelog_1222_li
@changelog_1223_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_1223_li
@changelog_1224_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_1224_li
@changelog_1225_li
New function TABLE_DISTINCT.
New function TABLE_DISTINCT.
@changelog_1225_li
@changelog_1226_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_1226_li
@changelog_1227_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_1227_h2
@changelog_1228_h2
Version 1.0.62 (2007-11-25)
Version 1.0.62 (2007-11-25)
@changelog_1228_li
@changelog_1229_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_1229_li
@changelog_1230_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_1230_li
@changelog_1231_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_1231_li
@changelog_1232_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_1232_li
@changelog_1233_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_1233_li
@changelog_1234_li
Duplicate column names were not detected when renaming columns. Fixed.
Duplicate column names were not detected when renaming columns. Fixed.
@changelog_1234_li
@changelog_1235_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_1235_li
@changelog_1236_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_1236_li
@changelog_1237_li
Values of type ARRAY are now sorted as in PostgreSQL.
Values of type ARRAY are now sorted as in PostgreSQL.
@changelog_1237_li
@changelog_1238_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_1238_li
@changelog_1239_li
The performance of large CSV operations has been improved.
The performance of large CSV operations has been improved.
@changelog_1239_li
@changelog_1240_li
Now using custom toString() for most JDBC objects and commands.
Now using custom toString() for most JDBC objects and commands.
@changelog_1240_li
@changelog_1241_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_1241_li
@changelog_1242_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_1242_li
@changelog_1243_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_1243_li
@changelog_1244_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_1244_li
@changelog_1245_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_1245_li
@changelog_1246_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_1246_h2
@changelog_1247_h2
Version 1.0.61 (2007-11-10)
Version 1.0.61 (2007-11-10)
@changelog_1247_li
@changelog_1248_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_1248_li
@changelog_1249_li
Added more tests. The code coverage is now at 83%.
Added more tests. The code coverage is now at 83%.
@changelog_1249_li
@changelog_1250_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_1250_li
@changelog_1251_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_1251_li
@changelog_1252_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_1252_li
@changelog_1253_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_1253_li
@changelog_1254_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_1254_li
@changelog_1255_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_1255_li
@changelog_1256_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_1256_li
@changelog_1257_li
Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
@changelog_1257_li
@changelog_1258_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_1258_li
@changelog_1259_li
Solved a Java level deadlock in the DatabaseCloser.
Solved a Java level deadlock in the DatabaseCloser.
@changelog_1259_li
@changelog_1260_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_1260_li
@changelog_1261_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_1261_h2
@changelog_1262_h2
Version 1.0.60 (2007-10-20)
Version 1.0.60 (2007-10-20)
@changelog_1262_li
@changelog_1263_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_1263_li
@changelog_1264_li
User defined aggregate functions are not supported.
User defined aggregate functions are not supported.
@changelog_1264_li
@changelog_1265_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_1265_li
@changelog_1266_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_1266_li
@changelog_1267_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_1267_li
@changelog_1268_li
New Italian translation from PierPaolo Ucchino. Thanks a lot!
New Italian translation from PierPaolo Ucchino. Thanks a lot!
@changelog_1268_li
@changelog_1269_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_1269_li
@changelog_1270_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_1270_li
@changelog_1271_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_1271_li
@changelog_1272_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_1272_li
@changelog_1273_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_1273_h2
@changelog_1274_h2
Version 1.0.59 (2007-10-03)
Version 1.0.59 (2007-10-03)
@changelog_1274_li
@changelog_1275_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_1275_li
@changelog_1276_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_1276_li
@changelog_1277_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_1277_li
@changelog_1278_li
A PreparedStatement that was cancelled could not be reused. Fixed.
A PreparedStatement that was cancelled could not be reused. Fixed.
@changelog_1278_li
@changelog_1279_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_1279_li
@changelog_1280_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_1280_li
@changelog_1281_li
Fulltext search is now documented (in the Tutorial).
Fulltext search is now documented (in the Tutorial).
@changelog_1281_li
@changelog_1282_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_1282_li
@changelog_1283_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_1283_li
@changelog_1284_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_1284_li
@changelog_1285_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_1285_li
@changelog_1286_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_1286_li
@changelog_1287_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_1287_li
@changelog_1288_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_1288_li
@changelog_1289_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_1289_h2
@changelog_1290_h2
Version 1.0.58 (2007-09-15)
Version 1.0.58 (2007-09-15)
@changelog_1290_li
@changelog_1291_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_1291_li
@changelog_1292_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_1292_li
@changelog_1293_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_1293_li
@changelog_1294_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_1294_li
@changelog_1295_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_1295_li
@changelog_1296_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_1296_li
@changelog_1297_li
The default value for MAX_MEMORY_UNDO is now 100000.
The default value for MAX_MEMORY_UNDO is now 100000.
@changelog_1297_li
@changelog_1298_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_1298_li
@changelog_1299_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_1299_li
@changelog_1300_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_1300_li
@changelog_1301_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_1301_li
@changelog_1302_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_1302_li
@changelog_1303_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_1303_li
@changelog_1304_li
The version (build) number is now included in the manifest file.
The version (build) number is now included in the manifest file.
@changelog_1304_li
@changelog_1305_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_1305_li
@changelog_1306_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_1306_li
@changelog_1307_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_1307_li
@changelog_1308_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_1308_li
@changelog_1309_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_1309_li
@changelog_1310_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_1310_li
@changelog_1311_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_1311_li
@changelog_1312_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_1312_li
@changelog_1313_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_1313_li
@changelog_1314_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
...
@@ -2117,75 +2120,81 @@ The maximum file size for FAT or FAT32 file systems is 4 GB. So if you use FAT o
...
@@ -2117,75 +2120,81 @@ The maximum file size for FAT or FAT32 file systems is 4 GB. So if you use FAT o
Is it Reliable?
Is it Reliable?
@faq_1032_p
@faq_1032_p
That is not easy to say. It is still a quite new product. A lot of tests have been written, and the code coverage of these tests is very high. Randomized stress tests are run regularly. But as this is a relatively new product, there are probably some problems that have not yet been found. Areas that are not fully tested:
That is not easy to say. It is still a quite new product. A lot of tests have been written, and the code coverage of these tests is very high. Randomized stress tests are run regularly. But as this is a relatively new product, there are probably some problems that have not yet been found (as with most software). Some features are known to be dangerous by design, and some problems are hard to solve. Those are:
@faq_1033_li
@faq_1033_li
Platforms other than Windows XP and the Sun JVM 1.4 and 1.5
Using SET LOG 0 to disable the transaction log file.
@faq_1034_li
@faq_1034_li
The MVCC (multi version concurrency) mode
Using the transaction isolation level READ_UNCOMMITTED (LOCK_MODE 0) while at the same time using multiple connections may result in inconsistent transactions.
@faq_1035_li
@faq_1035_p
The persistent linear hash index
In addition to that, running out of memory should be avoided. In some versions, OutOfMemory errors while using the database could corrupt a databases. Not all such problems may be fixed.
@faq_1036_li
@faq_1036_p
Cluster mode, 2-Phase Commit, Savepoints
Areas that are not fully tested:
@faq_1037_li
@faq_1037_li
Multi-Threading and using multiple connections
Platforms other than Windows XP and the Sun JVM 1.4 and 1.5
@faq_1038_li
@faq_1038_li
24/7 operation and large databases (500 MB and up)
The MVCC (multi version concurrency) mode
@faq_1039_li
@faq_1039_li
Updatable result sets
Cluster mode, 2-phase commit, savepoints
@faq_1040_li
@faq_1040_li
Referential integrity and check constraints, Triggers
24/7 operation
@faq_1041_li
@faq_1041_li
ALTER TABLE statements, Views, Linked Tables, Schema, UNION
Some operations on databases larger than 500 MB may be slower than expected
@faq_1042_li
@faq_1042_li
Not all built-in functions are completely tested
Updatable result sets
@faq_1043_li
@faq_1043_li
The Optimizer may not always select the best plan
Referential integrity and check constraints, triggers
@faq_1044_li
@faq_1044_li
Data types BLOB, CLOB, VARCHAR_IGNORECASE, OTHER
ALTER TABLE statements, views, linked tables, schema, UNION
@faq_1045_li
@faq_1045_li
Server mode (well tested, but not as well as Embedded mode)
Not all built-in functions are completely tested
@faq_1046_li
@faq_1046_li
Wide indexes with large VARCHAR or VARBINARY columns and / or with a lot of columns
The optimizer may not always select the best plan
@faq_1047_p
@faq_1047_li
Areas considered Experimental:
Data types BLOB, CLOB, VARCHAR_IGNORECASE, OTHER
@faq_1048_li
@faq_1048_li
The PostgreSQL server
Wide indexes with large VARCHAR or VARBINARY columns and / or with a lot of columns
@faq_1049_li
@faq_1049_li
Linear Hash Index
Multi-threading and using multiple connections
@faq_1050_li
@faq_1050_p
Compatibility modes for other databases (only some features are implemented)
Areas considered Experimental:
@faq_1051_li
@faq_1051_li
The PostgreSQL server
@faq_1052_li
Compatibility modes for other databases (only some features are implemented)
@faq_1053_li
The ARRAY data type and related functionality
The ARRAY data type and related functionality
@faq_1052_h3
@faq_1054_h3
Is the GCJ Version Stable? Faster?
Is the GCJ Version Stable? Faster?
@faq_1053_p
@faq_1055_p
The GCJ version is not as stable as the Java version. When running the regression test with the GCJ version, sometimes the application just stops at what seems to be a random point without error message. Currently, the GCJ version is also slower than when using the Sun VM. However, the startup of the GCJ version is faster than when using a VM.
The GCJ version is not as stable as the Java version. When running the regression test with the GCJ version, sometimes the application just stops at what seems to be a random point without error message. Currently, the GCJ version is also slower than when using the Sun VM. However, the startup of the GCJ version is faster than when using a VM.
@faq_1054_h3
@faq_1056_h3
How to Translate this Project?
How to Translate this Project?
@faq_1055_p
@faq_1057_p
For more information, see <a href="build.html#translating">Build/Translating</a> .
For more information, see <a href="build.html#translating">Build/Translating</a> .
@features_1000_h1
@features_1000_h1
...
@@ -7441,13 +7450,22 @@ MySQL compatibility: update test1 t1, test2 t2 set t1.id = t2.id where t1.id = t
...
@@ -7441,13 +7450,22 @@ MySQL compatibility: update test1 t1, test2 t2 set t1.id = t2.id where t1.id = t
@roadmap_1337_li
@roadmap_1337_li
Oracle: support DECODE method (convert to CASE WHEN).
Oracle: support DECODE method (convert to CASE WHEN).
@roadmap_1338_h2
@roadmap_1338_li
Not Planned
Support large databases: split LOB (BLOB, CLOB) to multiple directories / disks (similar to tablespaces).
@roadmap_1339_li
@roadmap_1339_li
HSQLDB (did) support this: select id i from test where i>0 (other databases don't). Supporting it may break compatibility.
Support to assign a primary key index a user defined name.
@roadmap_1340_li
@roadmap_1340_li
Cluster: Add feature to make sure cluster nodes can not get out of sync (for example by stopping one process).
@roadmap_1341_h2
Not Planned
@roadmap_1342_li
HSQLDB (did) support this: select id i from test where i>0 (other databases don't). Supporting it may break compatibility.
@roadmap_1343_li
String.intern (so that Strings can be compared with ==) will not be used because some VMs have problems when used extensively.
String.intern (so that Strings can be compared with ==) will not be used because some VMs have problems when used extensively.
#Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
#Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
@changelog_1003_li
@changelog_1003_li
#Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
#Fixed the Oracle mode: Oracle allows multiple rows with NULL in a unique index.
@changelog_1004_li
@changelog_1004_li
#When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
#Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
@changelog_1005_li
@changelog_1005_li
#Referential constraint checking improvement: now the constraint is only checked if the key column values change.
#When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
@changelog_1006_li
@changelog_1006_li
#Some database metadata calls returned the wrong data type for DATA_TYPE columns.
#Referential constraint checking improvement: now the constraint is only checked if the key column values change.
@changelog_1007_li
@changelog_1007_li
#The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
#Some database metadata calls returned the wrong data type for DATA_TYPE columns.
@changelog_1008_li
@changelog_1008_li
#The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
#The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
@changelog_1009_li
@changelog_1009_li
#The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
#The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
@changelog_1010_li
@changelog_1010_li
#The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
@changelog_1011_li
#Stopping a WebServer didn't always work. Fixed.
#Stopping a WebServer didn't always work. Fixed.
@changelog_1011_h2
@changelog_1012_h2
#Version 1.0.74 (2008-06-21)
#Version 1.0.74 (2008-06-21)
@changelog_1012_li
@changelog_1013_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_1013_li
@changelog_1014_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_1014_li
@changelog_1015_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_1015_li
@changelog_1016_li
#The ChangePassword tool is now called ChangeFileEncryption.
#The ChangePassword tool is now called ChangeFileEncryption.
@changelog_1016_li
@changelog_1017_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_1017_li
@changelog_1018_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_1018_li
@changelog_1019_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_1019_li
@changelog_1020_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_1020_li
@changelog_1021_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_1021_li
@changelog_1022_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_1022_li
@changelog_1023_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_1023_li
@changelog_1024_li
#Deadlocks are now detected. One transaction is rolled back automatically.
#Deadlocks are now detected. One transaction is rolled back automatically.
@changelog_1024_li
@changelog_1025_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_1025_li
@changelog_1026_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_1026_h2
@changelog_1027_h2
#Version 1.0.73 (2008-05-31)
#Version 1.0.73 (2008-05-31)
@changelog_1027_li
@changelog_1028_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_1028_li
@changelog_1029_li
#The table SYSTEM_RANGE now supports expressions and parameters.
#The table SYSTEM_RANGE now supports expressions and parameters.
@changelog_1029_li
@changelog_1030_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_1030_li
@changelog_1031_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_1031_li
@changelog_1032_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_1032_li
@changelog_1033_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_1033_li
@changelog_1034_li
#PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
#PostgreSQL compatibility: support for BOOL_OR and BOOL_AND aggregate functions.
@changelog_1034_li
@changelog_1035_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_1035_li
@changelog_1036_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_1036_li
@changelog_1037_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_1037_li
@changelog_1038_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_1038_li
@changelog_1039_li
#The fulltext search did not support CLOB data types.
#The fulltext search did not support CLOB data types.
@changelog_1039_li
@changelog_1040_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_1040_li
@changelog_1041_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_1041_li
@changelog_1042_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_1042_h2
@changelog_1043_h2
#Version 1.0.72 (2008-05-10)
#Version 1.0.72 (2008-05-10)
@changelog_1043_li
@changelog_1044_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_1044_li
@changelog_1045_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_1045_li
@changelog_1046_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_1046_li
@changelog_1047_li
#ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
#ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
@changelog_1047_li
@changelog_1048_li
#H2 Shell: DESCRIBE now supports an schema name.
#H2 Shell: DESCRIBE now supports an schema name.
@changelog_1048_li
@changelog_1049_li
#A subset of the PostgreSQL 'dollar quoting' feature is now supported.
#A subset of the PostgreSQL 'dollar quoting' feature is now supported.
@changelog_1049_li
@changelog_1050_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_1050_li
@changelog_1051_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_1051_li
@changelog_1052_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_1052_li
@changelog_1053_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_1053_li
@changelog_1054_li
#Statements can now be cancelled remotely (when using remote connections).
#Statements can now be cancelled remotely (when using remote connections).
@changelog_1054_li
@changelog_1055_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_1055_li
@changelog_1056_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_1056_h2
@changelog_1057_h2
#Version 1.0.71 (2008-04-25)
#Version 1.0.71 (2008-04-25)
@changelog_1057_li
@changelog_1058_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_1058_li
@changelog_1059_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_1059_li
@changelog_1060_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_1060_li
@changelog_1061_li
#New traditional Chinese translation. Thanks a lot to Derek Chao!
#New traditional Chinese translation. Thanks a lot to Derek Chao!
@changelog_1061_li
@changelog_1062_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_1062_h2
@changelog_1063_h2
#Version 1.0.70 (2008-04-20)
#Version 1.0.70 (2008-04-20)
@changelog_1063_li
@changelog_1064_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_1064_li
@changelog_1065_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_1065_li
@changelog_1066_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_1066_li
@changelog_1067_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_1067_li
@changelog_1068_li
#The precision if SUBSTR is now calculated if possible.
#The precision if SUBSTR is now calculated if possible.
@changelog_1068_li
@changelog_1069_li
#The autocomplete in the H2 Console has been improved a bit.
#The autocomplete in the H2 Console has been improved a bit.
@changelog_1069_li
@changelog_1070_li
#The tools in the H2 Console are now translatable.
#The tools in the H2 Console are now translatable.
@changelog_1070_li
@changelog_1071_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_1071_li
@changelog_1072_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_1072_li
@changelog_1073_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_1073_li
@changelog_1074_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_1074_li
@changelog_1075_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_1075_li
@changelog_1076_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_1078_li
@changelog_1079_li
#Optimization for MIN() and MAX() when using MVCC.
#Optimization for MIN() and MAX() when using MVCC.
@changelog_1079_li
@changelog_1080_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_1080_li
@changelog_1081_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_1081_li
@changelog_1082_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_1082_li
@changelog_1083_li
#OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
#OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
@changelog_1083_li
@changelog_1084_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_1084_li
@changelog_1085_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_1085_li
@changelog_1086_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_1086_h2
@changelog_1087_h2
#Version 1.0.69 (2008-03-29)
#Version 1.0.69 (2008-03-29)
@changelog_1087_li
@changelog_1088_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_1088_li
@changelog_1089_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_1089_li
@changelog_1090_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_1090_li
@changelog_1091_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_1091_li
@changelog_1092_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_1092_li
@changelog_1093_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_1093_li
@changelog_1094_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_1094_li
@changelog_1095_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_1095_li
@changelog_1096_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_1096_li
@changelog_1097_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_1097_li
@changelog_1098_li
#The recovery tool didn't work correctly for tables without rows.
#The recovery tool didn't work correctly for tables without rows.
@changelog_1098_li
@changelog_1099_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_1099_li
@changelog_1100_li
#CSVWRITE caused a NullPointerException when not specifying a nullString.
#CSVWRITE caused a NullPointerException when not specifying a nullString.
@changelog_1100_li
@changelog_1101_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_1101_li
@changelog_1102_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_1102_li
@changelog_1103_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_1103_h2
@changelog_1104_h2
#Version 1.0.68 (2008-03-18)
#Version 1.0.68 (2008-03-18)
@changelog_1104_li
@changelog_1105_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_1105_li
@changelog_1106_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_1106_li
@changelog_1107_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_1107_li
@changelog_1108_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_1108_li
@changelog_1109_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_1109_li
@changelog_1110_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_1110_li
@changelog_1111_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_1111_li
@changelog_1112_li
#H2 Console: autocomplete didn't work with very large scripts. Fixed.
#H2 Console: autocomplete didn't work with very large scripts. Fixed.
@changelog_1112_li
@changelog_1113_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_1113_li
@changelog_1114_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_1114_li
@changelog_1115_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_1115_li
@changelog_1116_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_1116_li
@changelog_1117_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_1117_li
@changelog_1118_li
#H2 Console: the start window works better with IKVM
#H2 Console: the start window works better with IKVM
@changelog_1118_li
@changelog_1119_li
#H2 Console: improved compatibility with Safari (Safari requires keep-alive)
#H2 Console: improved compatibility with Safari (Safari requires keep-alive)
@changelog_1119_li
@changelog_1120_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_1120_li
@changelog_1121_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_1121_li
@changelog_1122_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_1122_li
@changelog_1123_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_1123_li
@changelog_1124_li
#Some long running queries could not be cancelled.
#Some long running queries could not be cancelled.
@changelog_1124_li
@changelog_1125_li
#Queries with many outer join tables were very slow. Fixed.
#Queries with many outer join tables were very slow. Fixed.
@changelog_1125_li
@changelog_1126_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_1126_li
@changelog_1127_li
#UPDATE SET column=DEFAULT is now supported.
#UPDATE SET column=DEFAULT is now supported.
@changelog_1127_h2
@changelog_1128_h2
#Version 1.0.67 (2008-02-22)
#Version 1.0.67 (2008-02-22)
@changelog_1128_li
@changelog_1129_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_1129_li
@changelog_1130_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_1130_li
@changelog_1131_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_1131_li
@changelog_1132_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_1132_li
@changelog_1133_li
#The CSV tool now supports a custom lineSeparator.
#The CSV tool now supports a custom lineSeparator.
@changelog_1133_li
@changelog_1134_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_1134_li
@changelog_1135_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_1135_li
@changelog_1136_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_1136_li
@changelog_1137_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_1137_li
@changelog_1138_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_1138_li
@changelog_1139_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_1139_li
@changelog_1140_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_1140_li
@changelog_1141_li
#Large result sets are now a bit faster.
#Large result sets are now a bit faster.
@changelog_1141_li
@changelog_1142_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_1142_li
@changelog_1143_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_1143_li
@changelog_1144_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_1144_li
@changelog_1145_li
#Statement.setQueryTimeout() is now supported.
#Statement.setQueryTimeout() is now supported.
@changelog_1145_li
@changelog_1146_li
#New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
#New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
@changelog_1146_li
@changelog_1147_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_1147_li
@changelog_1148_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_1148_li
@changelog_1149_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_1149_li
@changelog_1150_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_1150_h2
@changelog_1151_h2
#Version 1.0.66 (2008-02-02)
#Version 1.0.66 (2008-02-02)
@changelog_1151_li
@changelog_1152_li
#There is a new online error analyzer tool.
#There is a new online error analyzer tool.
@changelog_1152_li
@changelog_1153_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_1153_li
@changelog_1154_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_1154_li
@changelog_1155_li
#The exception 'Value too long for column' now includes the data.
#The exception 'Value too long for column' now includes the data.
@changelog_1155_li
@changelog_1156_li
#The table name was missing in the documentation of CREATE INDEX.
#The table name was missing in the documentation of CREATE INDEX.
@changelog_1156_li
@changelog_1157_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_1157_li
@changelog_1158_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_1158_li
@changelog_1159_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_1159_li
@changelog_1160_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_1160_li
@changelog_1161_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_1161_li
@changelog_1162_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_1162_li
@changelog_1163_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_1163_li
@changelog_1164_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_1164_li
@changelog_1165_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_1165_li
@changelog_1166_li
#Fulltext search is now supported in named in-memory databases.
#Fulltext search is now supported in named in-memory databases.
@changelog_1166_li
@changelog_1167_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_1167_h2
@changelog_1168_h2
#Version 1.0.65 (2008-01-18)
#Version 1.0.65 (2008-01-18)
@changelog_1168_li
@changelog_1169_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_1169_li
@changelog_1170_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_1170_li
@changelog_1171_li
#The performance for DROP and DROP ALL OBJECTS has been improved.
#The performance for DROP and DROP ALL OBJECTS has been improved.
@changelog_1171_li
@changelog_1172_li
#The ChangePassword API has been improved.
#The ChangePassword API has been improved.
@changelog_1172_li
@changelog_1173_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_1173_li
@changelog_1174_li
#The Ukrainian translation has been improved.
#The Ukrainian translation has been improved.
@changelog_1174_li
@changelog_1175_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_1175_li
@changelog_1176_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_1176_li
@changelog_1177_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_1177_li
@changelog_1178_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_1178_li
@changelog_1179_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_1179_li
@changelog_1180_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_1180_li
@changelog_1181_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_1181_li
@changelog_1182_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_1182_li
@changelog_1183_li
#The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
#The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
@changelog_1183_li
@changelog_1184_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_1184_li
@changelog_1185_li
#The SCRIPT command did not split up CLOB data correctly. Fixed.
#The SCRIPT command did not split up CLOB data correctly. Fixed.
@changelog_1185_li
@changelog_1186_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_1186_li
@changelog_1187_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_1187_li
@changelog_1188_li
#PostgreSQL compatibility: COUNT(T.*) is now supported.
#PostgreSQL compatibility: COUNT(T.*) is now supported.
@changelog_1188_li
@changelog_1189_li
#LIKE comparisons are now faster.
#LIKE comparisons are now faster.
@changelog_1189_li
@changelog_1190_li
#Encrypted databases are now faster.
#Encrypted databases are now faster.
@changelog_1190_h2
@changelog_1191_h2
#Version 1.0.64 (2007-12-27)
#Version 1.0.64 (2007-12-27)
@changelog_1191_li
@changelog_1192_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_1192_li
@changelog_1193_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_1193_li
@changelog_1194_li
#CSV tool: some escape/separator character combinations did not work. Fixed.
#CSV tool: some escape/separator character combinations did not work. Fixed.
@changelog_1194_li
@changelog_1195_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_1195_li
@changelog_1196_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_1196_li
@changelog_1197_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_1197_li
@changelog_1198_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_1198_li
@changelog_1199_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_1199_li
@changelog_1200_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_1200_li
@changelog_1201_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_1201_li
@changelog_1202_li
#New built-in functions RPAD and LPAD.
#New built-in functions RPAD and LPAD.
@changelog_1202_li
@changelog_1203_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_1203_li
@changelog_1204_li
#The Ukrainian translation was not working in the last release. Fixed.
#The Ukrainian translation was not working in the last release. Fixed.
@changelog_1204_li
@changelog_1205_li
#Creating many tables (many hundreds) was slow. Fixed.
#Creating many tables (many hundreds) was slow. Fixed.
@changelog_1205_li
@changelog_1206_li
#Opening a database with many indexes (thousands) was slow. Fixed.
#Opening a database with many indexes (thousands) was slow. Fixed.
@changelog_1206_li
@changelog_1207_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_1207_li
@changelog_1208_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_1208_li
@changelog_1209_li
#The performance has been improved for ResultSet methods with column name.
#The performance has been improved for ResultSet methods with column name.
@changelog_1209_li
@changelog_1210_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_1210_li
@changelog_1211_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_1211_li
@changelog_1212_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_1212_li
@changelog_1213_li
#The classes DbStarter and WebServlet have been moved to src/main.
#The classes DbStarter and WebServlet have been moved to src/main.
@changelog_1213_li
@changelog_1214_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_1214_li
@changelog_1215_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_1215_li
@changelog_1216_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_1216_h2
@changelog_1217_h2
#Version 1.0.63 (2007-12-02)
#Version 1.0.63 (2007-12-02)
@changelog_1217_li
@changelog_1218_li
#The SecurePassword example has been improved.
#The SecurePassword example has been improved.
@changelog_1218_li
@changelog_1219_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_1219_li
@changelog_1220_li
#The native fulltext search was not working properly after re-connecting.
#The native fulltext search was not working properly after re-connecting.
@changelog_1220_li
@changelog_1221_li
#Improved FTP server: now the PORT command is supported.
#Improved FTP server: now the PORT command is supported.
@changelog_1221_li
@changelog_1222_li
#Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
#Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
@changelog_1222_li
@changelog_1223_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_1223_li
@changelog_1224_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_1224_li
@changelog_1225_li
#New function TABLE_DISTINCT.
#New function TABLE_DISTINCT.
@changelog_1225_li
@changelog_1226_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_1226_li
@changelog_1227_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_1227_h2
@changelog_1228_h2
#Version 1.0.62 (2007-11-25)
#Version 1.0.62 (2007-11-25)
@changelog_1228_li
@changelog_1229_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_1229_li
@changelog_1230_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_1230_li
@changelog_1231_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_1231_li
@changelog_1232_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_1232_li
@changelog_1233_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_1233_li
@changelog_1234_li
#Duplicate column names were not detected when renaming columns. Fixed.
#Duplicate column names were not detected when renaming columns. Fixed.
@changelog_1234_li
@changelog_1235_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_1235_li
@changelog_1236_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_1236_li
@changelog_1237_li
#Values of type ARRAY are now sorted as in PostgreSQL.
#Values of type ARRAY are now sorted as in PostgreSQL.
@changelog_1237_li
@changelog_1238_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_1238_li
@changelog_1239_li
#The performance of large CSV operations has been improved.
#The performance of large CSV operations has been improved.
@changelog_1239_li
@changelog_1240_li
#Now using custom toString() for most JDBC objects and commands.
#Now using custom toString() for most JDBC objects and commands.
@changelog_1240_li
@changelog_1241_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_1241_li
@changelog_1242_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_1242_li
@changelog_1243_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_1243_li
@changelog_1244_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_1244_li
@changelog_1245_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_1245_li
@changelog_1246_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_1246_h2
@changelog_1247_h2
#Version 1.0.61 (2007-11-10)
#Version 1.0.61 (2007-11-10)
@changelog_1247_li
@changelog_1248_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_1248_li
@changelog_1249_li
#Added more tests. The code coverage is now at 83%.
#Added more tests. The code coverage is now at 83%.
@changelog_1249_li
@changelog_1250_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_1250_li
@changelog_1251_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_1251_li
@changelog_1252_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_1252_li
@changelog_1253_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_1253_li
@changelog_1254_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_1254_li
@changelog_1255_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_1255_li
@changelog_1256_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_1256_li
@changelog_1257_li
#Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
#Vlad Alexahin has translated H2 Console to Russian. Thanks a lot!
@changelog_1257_li
@changelog_1258_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_1258_li
@changelog_1259_li
#Solved a Java level deadlock in the DatabaseCloser.
#Solved a Java level deadlock in the DatabaseCloser.
@changelog_1259_li
@changelog_1260_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_1260_li
@changelog_1261_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_1261_h2
@changelog_1262_h2
#Version 1.0.60 (2007-10-20)
#Version 1.0.60 (2007-10-20)
@changelog_1262_li
@changelog_1263_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_1263_li
@changelog_1264_li
#User defined aggregate functions are not supported.
#User defined aggregate functions are not supported.
@changelog_1264_li
@changelog_1265_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_1265_li
@changelog_1266_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_1266_li
@changelog_1267_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_1267_li
@changelog_1268_li
#New Italian translation from PierPaolo Ucchino. Thanks a lot!
#New Italian translation from PierPaolo Ucchino. Thanks a lot!
@changelog_1268_li
@changelog_1269_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_1269_li
@changelog_1270_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_1270_li
@changelog_1271_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_1271_li
@changelog_1272_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_1272_li
@changelog_1273_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_1273_h2
@changelog_1274_h2
#Version 1.0.59 (2007-10-03)
#Version 1.0.59 (2007-10-03)
@changelog_1274_li
@changelog_1275_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_1275_li
@changelog_1276_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_1276_li
@changelog_1277_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_1277_li
@changelog_1278_li
#A PreparedStatement that was cancelled could not be reused. Fixed.
#A PreparedStatement that was cancelled could not be reused. Fixed.
@changelog_1278_li
@changelog_1279_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_1279_li
@changelog_1280_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_1280_li
@changelog_1281_li
#Fulltext search is now documented (in the Tutorial).
#Fulltext search is now documented (in the Tutorial).
@changelog_1281_li
@changelog_1282_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_1282_li
@changelog_1283_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_1283_li
@changelog_1284_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_1284_li
@changelog_1285_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_1285_li
@changelog_1286_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_1286_li
@changelog_1287_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_1287_li
@changelog_1288_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_1288_li
@changelog_1289_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_1289_h2
@changelog_1290_h2
#Version 1.0.58 (2007-09-15)
#Version 1.0.58 (2007-09-15)
@changelog_1290_li
@changelog_1291_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_1291_li
@changelog_1292_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_1292_li
@changelog_1293_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_1293_li
@changelog_1294_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_1294_li
@changelog_1295_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_1295_li
@changelog_1296_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_1296_li
@changelog_1297_li
#The default value for MAX_MEMORY_UNDO is now 100000.
#The default value for MAX_MEMORY_UNDO is now 100000.
@changelog_1297_li
@changelog_1298_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_1298_li
@changelog_1299_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_1299_li
@changelog_1300_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_1300_li
@changelog_1301_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_1301_li
@changelog_1302_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_1302_li
@changelog_1303_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_1303_li
@changelog_1304_li
#The version (build) number is now included in the manifest file.
#The version (build) number is now included in the manifest file.
@changelog_1304_li
@changelog_1305_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_1305_li
@changelog_1306_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_1306_li
@changelog_1307_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_1307_li
@changelog_1308_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_1308_li
@changelog_1309_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_1309_li
@changelog_1310_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_1310_li
@changelog_1311_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_1311_li
@changelog_1312_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_1312_li
@changelog_1313_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_1313_li
@changelog_1314_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.
#That is not easy to say. It is still a quite new product. A lot of tests have been written, and the code coverage of these tests is very high. Randomized stress tests are run regularly. But as this is a relatively new product, there are probably some problems that have not yet been found. Areas that are not fully tested:
#That is not easy to say. It is still a quite new product. A lot of tests have been written, and the code coverage of these tests is very high. Randomized stress tests are run regularly. But as this is a relatively new product, there are probably some problems that have not yet been found (as with most software). Some features are known to be dangerous by design, and some problems are hard to solve. Those are:
@faq_1033_li
@faq_1033_li
WindowsXP以外のプラットフォーム、及びSUN JVM1.4、1.5での動作確認
#Using SET LOG 0 to disable the transaction log file.
@faq_1034_li
@faq_1034_li
#The MVCC (multi version concurrency) mode
#Using the transaction isolation level READ_UNCOMMITTED (LOCK_MODE 0) while at the same time using multiple connections may result in inconsistent transactions.
@faq_1035_li
@faq_1035_p
#The persistent linear hash index
#In addition to that, running out of memory should be avoided. In some versions, OutOfMemory errors while using the database could corrupt a databases. Not all such problems may be fixed.
@faq_1036_li
@faq_1036_p
クラスタモード、2フェーズコミット、セーブポイント
#Areas that are not fully tested:
@faq_1037_li
@faq_1037_li
マルチスレッドと複数接続の利用
WindowsXP以外のプラットフォーム、及びSUN JVM1.4、1.5での動作確認
@faq_1038_li
@faq_1038_li
24/7オペレーション、大容量データベース (500MB以上)
#The MVCC (multi version concurrency) mode
@faq_1039_li
@faq_1039_li
Updatable result sets
#Cluster mode, 2-phase commit, savepoints
@faq_1040_li
@faq_1040_li
参照整合性とCHECK制約、トリガー
#24/7 operation
@faq_1041_li
@faq_1041_li
ALTER TABLE ステートメント、ビュー、リンクテーブル、スキーマ、UNION
#Some operations on databases larger than 500 MB may be slower than expected
@faq_1042_li
@faq_1042_li
すべての組み込み関数が完全にテストされたわけではありません
Updatable result sets
@faq_1043_li
@faq_1043_li
オプティマイザが必ずしも最良を選択するとは限らない
#Referential integrity and check constraints, triggers
@faq_1044_li
@faq_1044_li
データ型 BLOB、CLOB、VARCHAR_IGNORECASE、OTHER
#ALTER TABLE statements, views, linked tables, schema, UNION
@faq_1045_li
@faq_1045_li
サーバーモード(十分にテストはしてありますが、組み込みモードほどではありません)
すべての組み込み関数が完全にテストされたわけではありません
@faq_1046_li
@faq_1046_li
大きなVARCHAR、VARBINARYカラム、または多数のカラムによる幅の広いインデックス
#The optimizer may not always select the best plan
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=Fixed the Oracle mode\:Oracle allows multiple rows with NULL in a unique index.
changelog_1002_li=Views with multiple joined tables (where one was an outer join) couldn't be used in some cases. Fixed.
changelog_1003_li=Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
changelog_1003_li=Fixed the Oracle mode\:Oracle allows multiple rows with NULL in a unique index.
changelog_1004_li=When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
changelog_1004_li=Running out of memory could result in incomplete transactions or corrupted databases. Fixed.
changelog_1005_li=Referential constraint checking improvement\:now the constraint is only checked if the key column values change.
changelog_1005_li=When using order by in a query that uses the same table multiple times, the order could be incorrect. Fixed.
changelog_1006_li=Some database metadata calls returned the wrong data type for DATA_TYPE columns.
changelog_1006_li=Referential constraint checking improvement\:now the constraint is only checked if the key column values change.
changelog_1007_li=The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
changelog_1007_li=Some database metadata calls returned the wrong data type for DATA_TYPE columns.
changelog_1008_li=The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
changelog_1008_li=The Lucene fulltext index was empty when opening a database with fulltext index enabled, and re-indexing it didn't work. Fixed.
changelog_1009_li=The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
changelog_1009_li=The character '$' could not be used in identifier names (table name, column names and so on). Fixed.
changelog_1010_li=Stopping a WebServer didn't always work. Fixed.
changelog_1010_li=The new method org.h2.tools.Server.startWebServer(conn) starts the H2 Console to inspect a database while debugging.
changelog_1011_h2=Version 1.0.74 (2008-06-21)
changelog_1011_li=Stopping a WebServer didn't always work. Fixed.
changelog_1012_li=Work on row level locking has been started (but there is nothing usable yet).
changelog_1012_h2=Version 1.0.74 (2008-06-21)
changelog_1013_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_1013_li=Work on row level locking has been started (but there is nothing usable yet).
changelog_1014_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_1014_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_1015_li=The ChangePassword tool is now called ChangeFileEncryption.
changelog_1015_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_1016_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_1016_li=The ChangePassword tool is now called ChangeFileEncryption.
changelog_1017_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_1017_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_1018_li=Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
changelog_1018_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_1019_li=RUNSCRIPT could throw a NullPointerException if the script name was an expression.
changelog_1019_li=Opening databases larger than 1 GB was sometimes very slow if a lot of data was deleted previously. Fixed.
changelog_1020_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_1020_li=RUNSCRIPT could throw a NullPointerException if the script name was an expression.
changelog_1021_li=Linked tables\:To view the statements that are executed against the target table, set the trace level to 3.
changelog_1021_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_1022_li=RunScript tool\:new options to show and check the results of queries.
changelog_1022_li=Linked tables\:To view the statements that are executed against the target table, set the trace level to 3.
changelog_1023_li=Deadlocks are now detected. One transaction is rolled back automatically.
changelog_1023_li=RunScript tool\:new options to show and check the results of queries.
changelog_1024_li=The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
changelog_1024_li=Deadlocks are now detected. One transaction is rolled back automatically.
changelog_1025_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_1025_li=The Lucene fulltext index was always re-created when opening a database with fulltext index enabled.
changelog_1026_h2=Version 1.0.73 (2008-05-31)
changelog_1026_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_1027_li=ParameterMetaData now returns the right data type for most conditions, as in WHERE ID\=?.
changelog_1027_h2=Version 1.0.73 (2008-05-31)
changelog_1028_li=The table SYSTEM_RANGE now supports expressions and parameters.
changelog_1028_li=ParameterMetaData now returns the right data type for most conditions, as in WHERE ID\=?.
changelog_1029_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_1029_li=The table SYSTEM_RANGE now supports expressions and parameters.
changelog_1030_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_1030_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_1031_li=The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
changelog_1031_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_1032_li=MySQL compatibility\:auto_increment column are no longer automatically converted to primary key columns.
changelog_1032_li=The SCRIPT command does now emit IF NOT EXISTS for CREATE ROLE.
changelog_1033_li=PostgreSQL compatibility\:support for BOOL_OR and BOOL_AND aggregate functions.
changelog_1033_li=MySQL compatibility\:auto_increment column are no longer automatically converted to primary key columns.
changelog_1034_li=Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
changelog_1034_li=PostgreSQL compatibility\:support for BOOL_OR and BOOL_AND aggregate functions.
changelog_1035_li=A role or right can now be granted or revoked multiple times without getting an exception.
changelog_1035_li=Negative scale values for DECIMAL or NUMBER columns are now supported in regular tables and in linked tables.
changelog_1036_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_1036_li=A role or right can now be granted or revoked multiple times without getting an exception.
changelog_1037_li=The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
changelog_1037_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_1038_li=The fulltext search did not support CLOB data types.
changelog_1038_li=The special double and float values 'NaN' (not a number) did not work correctly when sorting or comparing.
changelog_1039_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_1039_li=The fulltext search did not support CLOB data types.
changelog_1040_li=The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
changelog_1040_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_1041_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_1041_li=The H2 Console could not be shut down from within the tool if the browser supports keepAlive (most browsers do).
changelog_1042_h2=Version 1.0.72 (2008-05-10)
changelog_1042_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_1043_li=Some databases could not be opened when appending ;RECOVER\=1 to the database URL.
changelog_1043_h2=Version 1.0.72 (2008-05-10)
changelog_1044_li=The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
changelog_1044_li=Some databases could not be opened when appending ;RECOVER\=1 to the database URL.
changelog_1045_li=Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
changelog_1045_li=The Japanese translation of the error messages and the H2 Console has been completed by Masahiro Ikemoto (Arizona Design Inc.)
changelog_1046_li=ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
changelog_1046_li=Updates made to updatable rows are now visible within the same result set. DatabaseMetaData.ownUpdatesAreVisible now returns true.
changelog_1047_li=H2 Shell\:DESCRIBE now supports an schema name.
changelog_1047_li=ParameterMetaData now returns the correct data for INSERT and UPDATE statements.
changelog_1048_li=A subset of the PostgreSQL 'dollar quoting' feature is now supported.
changelog_1048_li=H2 Shell\:DESCRIBE now supports an schema name.
changelog_1049_li=SLF4J is now supported by using adding TRACE_LEVEL_FILE\=4 to the database URL.
changelog_1049_li=A subset of the PostgreSQL 'dollar quoting' feature is now supported.
changelog_1050_li=The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
changelog_1050_li=SLF4J is now supported by using adding TRACE_LEVEL_FILE\=4 to the database URL.
changelog_1051_li=Triggers are no longer executed when changing the table structure (ALTER TABLE).
changelog_1051_li=The recovery tool did not work if the table name contained spaces or if there was a comment on the table.
changelog_1052_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_1052_li=Triggers are no longer executed when changing the table structure (ALTER TABLE).
changelog_1053_li=Statements can now be cancelled remotely (when using remote connections).
changelog_1053_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_1054_li=The Shell tool now uses java.io.Console to read the password when using JDK 1.6
changelog_1054_li=Statements can now be cancelled remotely (when using remote connections).
changelog_1055_li=When using read-only databases and setting LOG\=2, an exception was written to the trace file when closing the database. Fixed.
changelog_1055_li=The Shell tool now uses java.io.Console to read the password when using JDK 1.6
changelog_1056_h2=Version 1.0.71 (2008-04-25)
changelog_1056_li=When using read-only databases and setting LOG\=2, an exception was written to the trace file when closing the database. Fixed.
changelog_1057_li=H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
changelog_1057_h2=Version 1.0.71 (2008-04-25)
changelog_1058_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_1058_li=H2 is now dual-licensed under the Eclipse Public License (EPL) and the old 'H2 License' (which is basically MPL).
changelog_1059_li=H2 Console\:The tools can now be translated (it didn't work in the last release).
changelog_1059_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_1060_li=New traditional Chinese translation. Thanks a lot to Derek Chao\!
changelog_1060_li=H2 Console\:The tools can now be translated (it didn't work in the last release).
changelog_1061_li=Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
changelog_1061_li=New traditional Chinese translation. Thanks a lot to Derek Chao\!
changelog_1062_h2=Version 1.0.70 (2008-04-20)
changelog_1062_li=Indexes were not used when enabling the optimization for IN(SELECT...) (system property h2.optimizeInJoin).
changelog_1063_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_1063_h2=Version 1.0.70 (2008-04-20)
changelog_1064_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_1064_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_1065_li=Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
changelog_1065_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_1066_li=New system property h2.enableAnonymousSSL (default\:true) to enable anonymous SSL connections.
changelog_1066_li=Calling SHUTDOWN on one connection and starting a query on another connection concurrently could result in a Java level deadlock.
changelog_1067_li=The precision if SUBSTR is now calculated if possible.
changelog_1067_li=New system property h2.enableAnonymousSSL (default\:true) to enable anonymous SSL connections.
changelog_1068_li=The autocomplete in the H2 Console has been improved a bit.
changelog_1068_li=The precision if SUBSTR is now calculated if possible.
changelog_1069_li=The tools in the H2 Console are now translatable.
changelog_1069_li=The autocomplete in the H2 Console has been improved a bit.
changelog_1070_li=The servlet and lucene jar files are now automatically downloaded when building.
changelog_1070_li=The tools in the H2 Console are now translatable.
changelog_1071_li=The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
changelog_1071_li=The servlet and lucene jar files are now automatically downloaded when building.
changelog_1072_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_1072_li=The code switch tool has been replaced by a simpler tool called SwitchSource that just uses find and replace.
changelog_1073_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_1073_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_1074_li=Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome\!
changelog_1074_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_1075_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_1075_li=Added shell scripts run.sh and build.sh. chmod +x is required, but otherwise it should work. Feedback or improvements are welcome\!
changelog_1076_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_1077_li=The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
changelog_1078_li=Optimization for MIN() and MAX() when using MVCC.
changelog_1078_li=The Japanese translation of the error messages and the H2 Console has been improved. Thanks a lot to Masahiro IKEMOTO.
changelog_1079_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_1079_li=Optimization for MIN() and MAX() when using MVCC.
changelog_1080_li=After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
changelog_1080_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_1081_li=Adding a IDENTITY column to a table with data threw a lock timeout.
changelog_1081_li=After setting the query timeout and then resetting it, the next query would still timeout. Fixed.
changelog_1082_li=OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
changelog_1082_li=Adding a IDENTITY column to a table with data threw a lock timeout.
changelog_1083_li=The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
changelog_1083_li=OutOfMemoryError could occur when using EXISTS or IN(SELECT ..).
changelog_1084_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_1084_li=The built-in connection pool is not called JdbcConnectionPool. The API and documentation has been changed.
changelog_1085_li=Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
changelog_1085_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_1086_h2=Version 1.0.69 (2008-03-29)
changelog_1086_li=Nested joins are now supported (A JOIN B JOIN C ON .. ON ..)
changelog_1087_li=Most command line tools can now be called from within the H2 Console.
changelog_1087_h2=Version 1.0.69 (2008-03-29)
changelog_1088_li=A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
changelog_1088_li=Most command line tools can now be called from within the H2 Console.
changelog_1089_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_1089_li=A new Shell tools is now included (org.h2.tools.Shell) to query a database from the command line.
changelog_1090_li=New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
changelog_1090_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_1091_li=Performance was very slow when using LOG\=2 and deleting or updating all rows of a table in a loop. Fixed.
changelog_1091_li=New system property h2.sortNullsHigh to invert the default sorting behavior for NULL. The default didn't change.
changelog_1092_li=ALTER TABLE or CREATE TABLE now support parameters for the password field.
changelog_1092_li=Performance was very slow when using LOG\=2 and deleting or updating all rows of a table in a loop. Fixed.
changelog_1093_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_1093_li=ALTER TABLE or CREATE TABLE now support parameters for the password field.
changelog_1094_li=TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
changelog_1094_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_1095_li=Fulltext search (native implementation)\:The words table is no longer an in-memory table because this caused memory problems in some cases.
changelog_1095_li=TRACE_LEVEL_ settings are no longer persistent. This was a problem when database initialization code caused a lot of trace output.
changelog_1096_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_1096_li=Fulltext search (native implementation)\:The words table is no longer an in-memory table because this caused memory problems in some cases.
changelog_1097_li=The recovery tool didn't work correctly for tables without rows.
changelog_1097_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_1098_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_1098_li=The recovery tool didn't work correctly for tables without rows.
changelog_1099_li=CSVWRITE caused a NullPointerException when not specifying a nullString.
changelog_1099_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_1100_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_1100_li=CSVWRITE caused a NullPointerException when not specifying a nullString.
changelog_1101_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_1101_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_1102_li=Altering a sequence didn't unlock the system table when autocommit switched off.
changelog_1102_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_1103_h2=Version 1.0.68 (2008-03-18)
changelog_1103_li=Altering a sequence didn't unlock the system table when autocommit switched off.
changelog_1104_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_1104_h2=Version 1.0.68 (2008-03-18)
changelog_1105_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_1105_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_1106_li=Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
changelog_1106_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_1107_li=ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
changelog_1107_li=Unused LOB files were deleted much too late. Now they are deleted if no longer referenced in memory.
changelog_1108_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_1108_li=ALTER SEQUENCE and ALTER TABLE ALTER COLUMN RESTART can now be used inside a transaction.
changelog_1109_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_1109_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_1110_li=Improved performance when using lob files in directories (however this is still disabled by default)
changelog_1110_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_1111_li=H2 Console\:autocomplete didn't work with very large scripts. Fixed.
changelog_1111_li=Improved performance when using lob files in directories (however this is still disabled by default)
changelog_1112_li=Fulltext search\:new method SEARCH_DATA that returns the column names and primary keys as arrays.
changelog_1112_li=H2 Console\:autocomplete didn't work with very large scripts. Fixed.
changelog_1113_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_1113_li=Fulltext search\:new method SEARCH_DATA that returns the column names and primary keys as arrays.
changelog_1114_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_1114_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_1115_li=H2 Console\:remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
changelog_1115_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_1116_li=H2 Console\:on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
changelog_1116_li=H2 Console\:remote connections were very slow because getHostName/getRemoteHost was used. Fixed (now using getHostAddress/getRemoteAddr.
changelog_1117_li=H2 Console\:the start window works better with IKVM
changelog_1117_li=H2 Console\:on Linux, Firefox, Konqueror, or Opera (in this order) are now started if available. This has been tested on Ubuntu.
changelog_1118_li=H2 Console\:improved compatibility with Safari (Safari requires keep-alive)
changelog_1118_li=H2 Console\:the start window works better with IKVM
changelog_1119_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_1119_li=H2 Console\:improved compatibility with Safari (Safari requires keep-alive)
changelog_1120_li=SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
changelog_1120_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_1121_li=When using a view, the column precision was changed to the default scale for some data types.
changelog_1121_li=SELECT UNION with a different number of ORDER BY columns did throw an ArrayIndexOutOfBoundsException.
changelog_1122_li=CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
changelog_1122_li=When using a view, the column precision was changed to the default scale for some data types.
changelog_1123_li=Some long running queries could not be cancelled.
changelog_1123_li=CSVWRITE now supports a 'null string' that is used for parsing and writing NULL.
changelog_1124_li=Queries with many outer join tables were very slow. Fixed.
changelog_1124_li=Some long running queries could not be cancelled.
changelog_1125_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_1125_li=Queries with many outer join tables were very slow. Fixed.
changelog_1126_li=UPDATE SET column\=DEFAULT is now supported.
changelog_1126_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_1127_h2=Version 1.0.67 (2008-02-22)
changelog_1127_li=UPDATE SET column\=DEFAULT is now supported.
changelog_1128_li=New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
changelog_1128_h2=Version 1.0.67 (2008-02-22)
changelog_1129_li=CREATE TABLE AS SELECT now supports specifying the column list and data types.
changelog_1129_li=New function FILE_READ to read a file or from an URL. Both binary and text data is supported.
changelog_1130_li=Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
changelog_1130_li=CREATE TABLE AS SELECT now supports specifying the column list and data types.
changelog_1131_li=A user now has all rights on his own local temporary tables.
changelog_1131_li=Connecting to a TCP server and at shutting it down at the same time could cause a Java level deadlock.
changelog_1132_li=The CSV tool now supports a custom lineSeparator.
changelog_1132_li=A user now has all rights on his own local temporary tables.
changelog_1133_li=When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
changelog_1133_li=The CSV tool now supports a custom lineSeparator.
changelog_1134_li=The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen\!
changelog_1134_li=When using multiple connections, empty space was reused too early sometimes. This could corrupt the database when recovering.
changelog_1135_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_1135_li=The H2 Console has been translated to Dutch. Thanks a lot to Remco Schoen\!
changelog_1136_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_1136_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_1137_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_1137_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_1138_li=The value cache is now a soft reference cache. This should help save memory.
changelog_1138_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_1139_li=CREATE INDEX on a table with many rows could run out of memory. Fixed.
changelog_1139_li=The value cache is now a soft reference cache. This should help save memory.
changelog_1140_li=Large result sets are now a bit faster.
changelog_1140_li=CREATE INDEX on a table with many rows could run out of memory. Fixed.
changelog_1141_li=ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
changelog_1141_li=Large result sets are now a bit faster.
changelog_1142_li=When setting the base directory on the command line, the user directory prefix ('~') was ignored.
changelog_1142_li=ALTER TABLE ALTER COLUMN RESTART and ALTER SEQUENCE now support parameters (any expressions).
changelog_1143_li=The DbStarter servlet didn't start the TCP listener even if configured.
changelog_1143_li=When setting the base directory on the command line, the user directory prefix ('~') was ignored.
changelog_1144_li=Statement.setQueryTimeout() is now supported.
changelog_1144_li=The DbStarter servlet didn't start the TCP listener even if configured.
changelog_1145_li=New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
changelog_1145_li=Statement.setQueryTimeout() is now supported.
changelog_1146_li=Changing the transaction log level (SET LOG) is now written to the trace file by default.
changelog_1146_li=New session setting QUERY_TIMEOUT, and new system property h2.maxQueryTimeout.
changelog_1147_li=In a SQL script, primary key constraints are now ordered before foreign key constraints.
changelog_1147_li=Changing the transaction log level (SET LOG) is now written to the trace file by default.
changelog_1148_li=It was not possible to create a referential constraint to a table in a different schema in some situations.
changelog_1148_li=In a SQL script, primary key constraints are now ordered before foreign key constraints.
changelog_1149_li=The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
changelog_1149_li=It was not possible to create a referential constraint to a table in a different schema in some situations.
changelog_1150_h2=Version 1.0.66 (2008-02-02)
changelog_1150_li=The H2 Console was slow when the database contains many tables. Now the column names are not shown in this case.
changelog_1151_li=There is a new online error analyzer tool.
changelog_1151_h2=Version 1.0.66 (2008-02-02)
changelog_1152_li=H2 Console\:stack traces are now links to the source code in the source repository (H2 database only).
changelog_1152_li=There is a new online error analyzer tool.
changelog_1153_li=CHAR data type equals comparison was case insensitive instead of case sensitive.
changelog_1153_li=H2 Console\:stack traces are now links to the source code in the source repository (H2 database only).
changelog_1154_li=The exception 'Value too long for column' now includes the data.
changelog_1154_li=CHAR data type equals comparison was case insensitive instead of case sensitive.
changelog_1155_li=The table name was missing in the documentation of CREATE INDEX.
changelog_1155_li=The exception 'Value too long for column' now includes the data.
changelog_1156_li=Better support for IKVM (www.ikvm.net)\:the H2 Console now opens a browser window.
changelog_1156_li=The table name was missing in the documentation of CREATE INDEX.
changelog_1157_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_1157_li=Better support for IKVM (www.ikvm.net)\:the H2 Console now opens a browser window.
changelog_1158_li=The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
changelog_1158_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_1159_li=The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
changelog_1159_li=The exception "Hexadecimal string contains non-hex character" was not always thrown when it should have been. Fixed.
changelog_1160_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_1160_li=The H2 Console now provides a link to the documentation when an error occurs (H2 databases only so far).
changelog_1161_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_1161_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_1162_li=For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
changelog_1162_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_1163_li=Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
changelog_1163_li=For compatibility with other databases the column default (COLUMN_DEF) for columns without default is now null (it was an empty string).
changelog_1164_li=Variables\:large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
changelog_1164_li=Statements that contain very large subqueries (where the subquery result does not fit in memory) are now faster.
changelog_1165_li=Fulltext search is now supported in named in-memory databases.
changelog_1165_li=Variables\:large objects (CLOB and BLOB) that don't fit in memory did not work correctly when used as variables.
changelog_1166_li=H2 Console\:multiple consecutive spaces in the setting name did not work. Fixed.
changelog_1166_li=Fulltext search is now supported in named in-memory databases.
changelog_1167_h2=Version 1.0.65 (2008-01-18)
changelog_1167_li=H2 Console\:multiple consecutive spaces in the setting name did not work. Fixed.
changelog_1168_li=The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
changelog_1168_h2=Version 1.0.65 (2008-01-18)
changelog_1169_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_1169_li=The build (ant) now automatically switches the source code to the correct version (JDK 1.4/1.5 or 1.6).
changelog_1170_li=The performance for DROP and DROP ALL OBJECTS has been improved.
changelog_1170_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_1171_li=The ChangePassword API has been improved.
changelog_1171_li=The performance for DROP and DROP ALL OBJECTS has been improved.
changelog_1172_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_1172_li=The ChangePassword API has been improved.
changelog_1173_li=The Ukrainian translation has been improved.
changelog_1173_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_1174_li=CALL statements can now be used in batch updates and called using Statement.executeUpdate.
changelog_1174_li=The Ukrainian translation has been improved.
changelog_1175_li=New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
changelog_1175_li=CALL statements can now be used in batch updates and called using Statement.executeUpdate.
changelog_1176_li=The optimizer did not use multi column indexes for range queries in some cases. Fixed.
changelog_1176_li=New read-only setting CREATE_BUILD (the build number of the database engine that created the database).
changelog_1177_li=The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
changelog_1177_li=The optimizer did not use multi column indexes for range queries in some cases. Fixed.
changelog_1178_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_1178_li=The H2 Console now calls DataSource.getConnection() instead of DataSource.getConnection(user, password) when user name and password are not specified.
changelog_1179_li=Batch update\:Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
changelog_1179_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_1180_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_1180_li=Batch update\:Calling BatchUpdateException.printStackTrace() could result in out of memory. Fixed.
changelog_1181_li=The performance for large result sets in the server mode has been improved.
changelog_1181_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_1182_li=The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
changelog_1182_li=The performance for large result sets in the server mode has been improved.
changelog_1183_li=The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
changelog_1183_li=The setting h2.serverSmallResultSetSize has been renamed to h2.serverResultSetFetchSize.
changelog_1184_li=The SCRIPT command did not split up CLOB data correctly. Fixed.
changelog_1184_li=The SCRIPT command now uses multi-row insert statements to save space except if the option SIMPLE is used.
changelog_1185_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_1185_li=The SCRIPT command did not split up CLOB data correctly. Fixed.
changelog_1186_li=DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
changelog_1186_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_1187_li=PostgreSQL compatibility\:COUNT(T.*) is now supported.
changelog_1187_li=DROP ALL OBJECTS did not drop user defined aggregate functions and domains.
changelog_1188_li=LIKE comparisons are now faster.
changelog_1188_li=PostgreSQL compatibility\:COUNT(T.*) is now supported.
changelog_1189_li=Encrypted databases are now faster.
changelog_1189_li=LIKE comparisons are now faster.
changelog_1190_h2=Version 1.0.64 (2007-12-27)
changelog_1190_li=Encrypted databases are now faster.
changelog_1191_li=3-way union queries with prepared statement or views could return the wrong results. Fixed.
changelog_1191_h2=Version 1.0.64 (2007-12-27)
changelog_1192_li=The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
changelog_1192_li=3-way union queries with prepared statement or views could return the wrong results. Fixed.
changelog_1193_li=CSV tool\:some escape/separator character combinations did not work. Fixed.
changelog_1193_li=The PostgreSQL ODBC driver did not work in the last release due to a parser regression. Fixed.
changelog_1194_li=CSV tool\:the character \#could not be used as a separator when reading.
changelog_1194_li=CSV tool\:some escape/separator character combinations did not work. Fixed.
changelog_1195_li=Recovery\:when the index file is corrupt, now the database deletes it and re-creates it automatically.
changelog_1195_li=CSV tool\:the character \#could not be used as a separator when reading.
changelog_1196_li=The MVCC mode did not work well with in-memory databases. Fixed.
changelog_1196_li=Recovery\:when the index file is corrupt, now the database deletes it and re-creates it automatically.
changelog_1197_li=The FTP server now supports a event listener. Thanks Fulvio Biondi for the help\!
changelog_1197_li=The MVCC mode did not work well with in-memory databases. Fixed.
changelog_1198_li=New system function CANCEL_SESSION to cancel the currently executing statement of another session.
changelog_1198_li=The FTP server now supports a event listener. Thanks Fulvio Biondi for the help\!
changelog_1199_li=The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
changelog_1199_li=New system function CANCEL_SESSION to cancel the currently executing statement of another session.
changelog_1200_li=H2 Console\:when editing result sets, columns can now be set to null. The text 'null' must be escaped using '\=null'.
changelog_1200_li=The database now supports an exclusive mode. In exclusive mode, new connections are rejected.
changelog_1201_li=New built-in functions RPAD and LPAD.
changelog_1201_li=H2 Console\:when editing result sets, columns can now be set to null. The text 'null' must be escaped using '\=null'.
changelog_1202_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_1202_li=New built-in functions RPAD and LPAD.
changelog_1203_li=The Ukrainian translation was not working in the last release. Fixed.
changelog_1203_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_1204_li=Creating many tables (many hundreds) was slow. Fixed.
changelog_1204_li=The Ukrainian translation was not working in the last release. Fixed.
changelog_1205_li=Opening a database with many indexes (thousands) was slow. Fixed.
changelog_1205_li=Creating many tables (many hundreds) was slow. Fixed.
changelog_1206_li=H2 Console / autocomplete\:Ctrl+Space now shows the list in all modes.
changelog_1206_li=Opening a database with many indexes (thousands) was slow. Fixed.
changelog_1207_li=The method Trigger.init has been changed\:the parameters 'before' and 'type', have been added to the init method.
changelog_1207_li=H2 Console / autocomplete\:Ctrl+Space now shows the list in all modes.
changelog_1208_li=The performance has been improved for ResultSet methods with column name.
changelog_1208_li=The method Trigger.init has been changed\:the parameters 'before' and 'type', have been added to the init method.
changelog_1209_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_1209_li=The performance has been improved for ResultSet methods with column name.
changelog_1210_li=The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar\!
changelog_1210_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_1211_li=Improved debugging support\:toString methods of most object now return a meaningful text.
changelog_1211_li=The H2 Console has been translated to Turkish. Thanks a lot to Ridvan Agar\!
changelog_1212_li=The classes DbStarter and WebServlet have been moved to src/main.
changelog_1212_li=Improved debugging support\:toString methods of most object now return a meaningful text.
changelog_1213_li=The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
changelog_1213_li=The classes DbStarter and WebServlet have been moved to src/main.
changelog_1214_li=Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
changelog_1214_li=The column INFORMATION_SCHEMA.TRIGGERS.SQL now contains the CREATE TRIGGER statement.
changelog_1215_li=The database could not be used in Java applets due to security exceptions. Fixed.
changelog_1215_li=Loading classes and calling methods can be restricted using the new system property h2.allowedClasses.
changelog_1216_h2=Version 1.0.63 (2007-12-02)
changelog_1216_li=The database could not be used in Java applets due to security exceptions. Fixed.
changelog_1217_li=The SecurePassword example has been improved.
changelog_1217_h2=Version 1.0.63 (2007-12-02)
changelog_1218_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_1218_li=The SecurePassword example has been improved.
changelog_1219_li=The native fulltext search was not working properly after re-connecting.
changelog_1219_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_1220_li=Improved FTP server\:now the PORT command is supported.
changelog_1220_li=The native fulltext search was not working properly after re-connecting.
changelog_1221_li=Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
changelog_1221_li=Improved FTP server\:now the PORT command is supported.
changelog_1222_li=Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin\=true
changelog_1222_li=Temporary views (FROM(...)) with UNION didn't work if nested. Fixed.
changelog_1223_li=The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot\!
changelog_1223_li=Performance optimization for IN(...) and IN(SELECT...), currently disabled by default. To enable, use java -Dh2.optimizeInJoin\=true
changelog_1224_li=New function TABLE_DISTINCT.
changelog_1224_li=The H2 Console has been translated to Ukrainian by Igor Dobrovolskyi. Thanks a lot\!
changelog_1225_li=Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
changelog_1225_li=New function TABLE_DISTINCT.
changelog_1226_li=Certain setting in the Server didn't work (http\://code.google.com/p/h2database/issues/detail?id\=7).
changelog_1226_li=Using LIMIT with values close to Integer.MAX_VALUE didn't work correctly.
changelog_1227_h2=Version 1.0.62 (2007-11-25)
changelog_1227_li=Certain setting in the Server didn't work (http\://code.google.com/p/h2database/issues/detail?id\=7).
changelog_1228_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_1228_h2=Version 1.0.62 (2007-11-25)
changelog_1229_li=MVCC\:now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
changelog_1229_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_1230_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_1230_li=MVCC\:now an exception is thrown when an application tries to change the MVCC setting while the database is already open.
changelog_1231_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_1231_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_1232_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_1232_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_1233_li=Duplicate column names were not detected when renaming columns. Fixed.
changelog_1233_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_1234_li=The console did not display multiple embedded spaces in text correctly. Fixed.
changelog_1234_li=Duplicate column names were not detected when renaming columns. Fixed.
changelog_1235_li=Google Android support\:use 'ant codeswitchAndroid' to switch the source code to Android.
changelog_1235_li=The console did not display multiple embedded spaces in text correctly. Fixed.
changelog_1236_li=Values of type ARRAY are now sorted as in PostgreSQL.
changelog_1236_li=Google Android support\:use 'ant codeswitchAndroid' to switch the source code to Android.
changelog_1237_li=In the cluster mode, could not connect if only one server was running (last release only). Fixed.
changelog_1237_li=Values of type ARRAY are now sorted as in PostgreSQL.
changelog_1238_li=The performance of large CSV operations has been improved.
changelog_1238_li=In the cluster mode, could not connect if only one server was running (last release only). Fixed.
changelog_1239_li=Now using custom toString() for most JDBC objects and commands.
changelog_1239_li=The performance of large CSV operations has been improved.
changelog_1240_li=Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
changelog_1240_li=Now using custom toString() for most JDBC objects and commands.
changelog_1241_li=CSV\:Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
changelog_1241_li=Nested temporary views (SELECT * FROM (SELECT ...)) with parameters didn't work in some cases. Fixed.
changelog_1242_li=A patch for Apache DDL Utils is available at https\://issues.apache.org/jira/browse/DDLUTILS-185
changelog_1242_li=CSV\:Using an empty field delimiter didn't work (a workaround was using char(0)). Fixed.
changelog_1243_li=The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
changelog_1243_li=A patch for Apache DDL Utils is available at https\://issues.apache.org/jira/browse/DDLUTILS-185
changelog_1244_li=Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot\!
changelog_1244_li=The default value for h2.emergencySpaceInitial is now 256 KB (to speed up creating encrypted databases)
changelog_1245_li=Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
changelog_1245_li=Eduardo Velasques has translated the H2 Console and the error messages to Brazilian Portuguese. Thanks a lot\!
changelog_1246_h2=Version 1.0.61 (2007-11-10)
changelog_1246_li=Creating a table from GROUP_CONCAT didn't work if the data was longer than 255 characters
changelog_1247_li=The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
changelog_1247_h2=Version 1.0.61 (2007-11-10)
changelog_1248_li=Added more tests. The code coverage is now at 83%.
changelog_1248_li=The Lucene Fulltext implementation is now compiled and included in the h2.jar. Requires Lucene 2.2.
changelog_1249_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_1249_li=Added more tests. The code coverage is now at 83%.
changelog_1250_li=The MODE used to be a global setting, now it is a database level setting.
changelog_1250_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_1251_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_1251_li=The MODE used to be a global setting, now it is a database level setting.
changelog_1252_li=Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
changelog_1252_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_1253_li=INSTR, LOCATE\:backward searching is not supported by using a negative start position.
changelog_1253_li=Math operations using unknown data types (for example -? and ?+?) are now interpreted as decimal.
changelog_1254_li=Can now open a database stored in a jar or zip file (for example, jdbc\:h2\:zip\:c\:/temp/h2.zip\!/test).
changelog_1254_li=INSTR, LOCATE\:backward searching is not supported by using a negative start position.
changelog_1255_li=Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
changelog_1255_li=Can now open a database stored in a jar or zip file (for example, jdbc\:h2\:zip\:c\:/temp/h2.zip\!/test).
changelog_1256_li=Vlad Alexahin has translated H2 Console to Russian. Thanks a lot\!
changelog_1256_li=Files access now uses an API (FileSystem, FileObject), this will simplify adding other file systems and features (for example replication).
changelog_1257_li=Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
changelog_1257_li=Vlad Alexahin has translated H2 Console to Russian. Thanks a lot\!
changelog_1258_li=Solved a Java level deadlock in the DatabaseCloser.
changelog_1258_li=Descending indexes are now supported. This is useful when sorting columns descending, for example by creation date.
changelog_1259_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_1259_li=Solved a Java level deadlock in the DatabaseCloser.
changelog_1260_li=MVCC\:The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
changelog_1260_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_1261_h2=Version 1.0.60 (2007-10-20)
changelog_1261_li=MVCC\:The system property h2.mvcc has been removed. A few bugs have been fixed, and new tests have been added.
changelog_1262_li=JdbcXAConnection\:starting a transaction before getting the connection didn't switch off autocommit.
changelog_1262_h2=Version 1.0.60 (2007-10-20)
changelog_1263_li=User defined aggregate functions are not supported.
changelog_1263_li=JdbcXAConnection\:starting a transaction before getting the connection didn't switch off autocommit.
changelog_1264_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_1264_li=User defined aggregate functions are not supported.
changelog_1265_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_1265_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_1266_li=Linked tables\:now tables in non-default schemas are supported as well
changelog_1266_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_1267_li=New Italian translation from PierPaolo Ucchino. Thanks a lot\!
changelog_1267_li=Linked tables\:now tables in non-default schemas are supported as well
changelog_1268_li=CSV\:New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
changelog_1268_li=New Italian translation from PierPaolo Ucchino. Thanks a lot\!
changelog_1269_li=Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
changelog_1269_li=CSV\:New methods to set the escape character and field delimiter in the Csv tool and the CSVWRITE and CSVREAD methods.
changelog_1270_li=PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
changelog_1270_li=Prepared statements could not be used after data definition statements (creating tables and so on). Fixed.
changelog_1271_li=The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
changelog_1271_li=PreparedStatement.setMaxRows could not be changed to a higher value after the statement was executed.
changelog_1272_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_1272_li=The H2 Console could not connect twice to the same H2 embedded database at the same time. Fixed.
changelog_1273_h2=Version 1.0.59 (2007-10-03)
changelog_1273_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_1274_li=When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
changelog_1274_h2=Version 1.0.59 (2007-10-03)
changelog_1275_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_1275_li=When the data type was unknown in a subquery, sometimes the wrong exception (ArrayIndexOutOfBounds) was thrown. Fixed.
changelog_1276_li=Multi-threaded kernel (MULTI_THREADED\=1)\:A synchronization problem has been fixed.
changelog_1276_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_1277_li=A PreparedStatement that was cancelled could not be reused. Fixed.
changelog_1277_li=Multi-threaded kernel (MULTI_THREADED\=1)\:A synchronization problem has been fixed.
changelog_1278_li=H2 Console\:Progress information when logging into a H2 embedded database (useful when opening a database is slow).
changelog_1278_li=A PreparedStatement that was cancelled could not be reused. Fixed.
changelog_1279_li=When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
changelog_1279_li=H2 Console\:Progress information when logging into a H2 embedded database (useful when opening a database is slow).
changelog_1280_li=Fulltext search is now documented (in the Tutorial).
changelog_1280_li=When the database was closed while logging was disabled (LOG 0), re-opening the database was slow. Fixed.
changelog_1281_li=The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
changelog_1281_li=Fulltext search is now documented (in the Tutorial).
changelog_1282_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_1282_li=The Console did not refresh the table list if the CREATE TABLE statement started with a comment. Fixed.
changelog_1283_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_1283_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_1284_li=REGEXP compatibility\:So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
changelog_1284_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_1285_li=SCRIPT\:the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
changelog_1285_li=REGEXP compatibility\:So far String.matches was used, but for compatibility with MySQL, now Matcher.find is used.
changelog_1286_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_1286_li=SCRIPT\:the SQL statements in the result set now include the terminating semicolon as well. Simplifies copy and paste.
changelog_1287_li=Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
changelog_1287_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_1288_li=Compatibility\:comparing columns with constants that are out of range does not throw an exception.
changelog_1288_li=Views with subqueries as tables and queries with nested subqueries as tables did not always work. Fixed.
changelog_1289_h2=Version 1.0.58 (2007-09-15)
changelog_1289_li=Compatibility\:comparing columns with constants that are out of range does not throw an exception.
changelog_1290_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_1290_h2=Version 1.0.58 (2007-09-15)
changelog_1291_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_1291_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_1292_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_1292_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_1293_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_1293_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_1294_li=When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
changelog_1294_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_1295_li=Maven 2\:new version are now automatically synced with the central repositories.
changelog_1295_li=When comparing TINYINT or SMALLINT columns against constants, the index was not used. Fixed.
changelog_1296_li=The default value for MAX_MEMORY_UNDO is now 100000.
changelog_1296_li=Maven 2\:new version are now automatically synced with the central repositories.
changelog_1297_li=The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
changelog_1297_li=The default value for MAX_MEMORY_UNDO is now 100000.
changelog_1298_li=Oracle compatibility\:SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
changelog_1298_li=The documentation indexer does no longer index Japanese pages. If somebody knows how to split Japanese into words please post it.
changelog_1299_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_1299_li=Oracle compatibility\:SYSDATE now returns a timestamp. CHR(..) is now an alias for CHAR(..).
changelog_1300_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_1300_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_1301_li=Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
changelog_1301_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_1302_li=Using spaces in column and table aliases was not supported when used inside a view or temporary view.
changelog_1302_li=Optimization for COLUMN IN(.., NULL) if the column does not allow NULL values.
changelog_1303_li=The version (build) number is now included in the manifest file.
changelog_1303_li=Using spaces in column and table aliases was not supported when used inside a view or temporary view.
changelog_1304_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_1304_li=The version (build) number is now included in the manifest file.
changelog_1305_li=The database file sizes are now increased at most 32 MB at any time.
changelog_1305_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_1306_li=New method DatabaseEventListener.opened that is called just after opening a database.
changelog_1306_li=The database file sizes are now increased at most 32 MB at any time.
changelog_1307_li=When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
changelog_1307_li=New method DatabaseEventListener.opened that is called just after opening a database.
changelog_1308_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_1308_li=When using the Console with Internet Explorer 6.0 or 7.0, a Javascript error was thrown after clearing the query.
changelog_1309_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_1309_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_1310_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_1310_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_1311_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_1311_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_1312_li=For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
changelog_1312_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_1313_li=Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
changelog_1313_li=For PgServer, character encoding other than UTF-8 did not work correctly. Fixed.
changelog_1314_li=Using a function in a GROUP BY expression that is used in a view as a condition did not always work.
@@ -704,30 +705,32 @@ faq_1028_h3=What is the Size Limit (Maximum Size) of a Database?
...
@@ -704,30 +705,32 @@ faq_1028_h3=What is the Size Limit (Maximum Size) of a Database?
faq_1029_p=The theoretical limit is currently 256 GB for the data. This number is excluding BLOB and CLOB data\:Every CLOB or BLOB can be up to 256 GB as well. The size limit of the index data is 256 GB as well.
faq_1029_p=The theoretical limit is currently 256 GB for the data. This number is excluding BLOB and CLOB data\:Every CLOB or BLOB can be up to 256 GB as well. The size limit of the index data is 256 GB as well.
faq_1030_p=The maximum file size for FAT or FAT32 file systems is 4 GB. So if you use FAT or FAT32, the limit is 4 GB for the data.
faq_1030_p=The maximum file size for FAT or FAT32 file systems is 4 GB. So if you use FAT or FAT32, the limit is 4 GB for the data.
faq_1031_h3=Is it Reliable?
faq_1031_h3=Is it Reliable?
faq_1032_p=That is not easy to say. It is still a quite new product. A lot of tests have been written, and the code coverage of these tests is very high. Randomized stress tests are run regularly. But as this is a relatively new product, there are probably some problems that have not yet been found. Areas that are not fully tested\:
faq_1032_p=That is not easy to say. It is still a quite new product. A lot of tests have been written, and the code coverage of these tests is very high. Randomized stress tests are run regularly. But as this is a relatively new product, there are probably some problems that have not yet been found (as with most software). Some features are known to be dangerous by design, and some problems are hard to solve. Those are\:
faq_1033_li=Platforms other than Windows XP and the Sun JVM 1.4 and 1.5
faq_1033_li=Using SET LOG 0 to disable the transaction log file.
faq_1034_li=The MVCC (multi version concurrency) mode
faq_1034_li=Using the transaction isolation level READ_UNCOMMITTED (LOCK_MODE 0) while at the same time using multiple connections may result in inconsistent transactions.
faq_1035_li=The persistent linear hash index
faq_1035_p=In addition to that, running out of memory should be avoided. In some versions, OutOfMemory errors while using the database could corrupt a databases. Not all such problems may be fixed.
faq_1040_li=Referential integrity and check constraints, Triggers
faq_1040_li=24/7 operation
faq_1041_li=ALTER TABLE statements, Views, Linked Tables, Schema, UNION
faq_1041_li=Some operations on databases larger than 500 MB may be slower than expected
faq_1042_li=Not all built-in functions are completely tested
faq_1042_li=Updatable result sets
faq_1043_li=The Optimizer may not always select the best plan
faq_1043_li=Referential integrity and check constraints, triggers
faq_1044_li=Data types BLOB, CLOB, VARCHAR_IGNORECASE, OTHER
faq_1044_li=ALTER TABLE statements, views, linked tables, schema, UNION
faq_1045_li=Server mode (well tested, but not as well as Embedded mode)
faq_1045_li=Not all built-in functions are completely tested
faq_1046_li=Wide indexes with large VARCHAR or VARBINARY columns and / or with a lot of columns
faq_1046_li=The optimizer may not always select the best plan
faq_1047_p=Areas considered Experimental\:
faq_1047_li=Data types BLOB, CLOB, VARCHAR_IGNORECASE, OTHER
faq_1048_li=The PostgreSQL server
faq_1048_li=Wide indexes with large VARCHAR or VARBINARY columns and / or with a lot of columns
faq_1049_li=Linear Hash Index
faq_1049_li=Multi-threading and using multiple connections
faq_1050_li=Compatibility modes for other databases (only some features are implemented)
faq_1050_p=Areas considered Experimental\:
faq_1051_li=The ARRAY data type and related functionality
faq_1051_li=The PostgreSQL server
faq_1052_h3=Is the GCJ Version Stable? Faster?
faq_1052_li=Compatibility modes for other databases (only some features are implemented)
faq_1053_p=The GCJ version is not as stable as the Java version. When running the regression test with the GCJ version, sometimes the application just stops at what seems to be a random point without error message. Currently, the GCJ version is also slower than when using the Sun VM. However, the startup of the GCJ version is faster than when using a VM.
faq_1053_li=The ARRAY data type and related functionality
faq_1054_h3=How to Translate this Project?
faq_1054_h3=Is the GCJ Version Stable? Faster?
faq_1055_p=For more information, see <a href\="build.html\#translating">Build/Translating</a> .
faq_1055_p=The GCJ version is not as stable as the Java version. When running the regression test with the GCJ version, sometimes the application just stops at what seems to be a random point without error message. Currently, the GCJ version is also slower than when using the Sun VM. However, the startup of the GCJ version is faster than when using a VM.
faq_1056_h3=How to Translate this Project?
faq_1057_p=For more information, see <a href\="build.html\#translating">Build/Translating</a> .
