Serialized access mode (server-less multi-connection mode): sequences did not work as expected (there were gaps in generated values when using multiple connections).
Serialized access mode (server-less multi-connection mode): sequences did not work as expected (there were gaps in generated values when using multiple connections).
@changelog_1003_li
@changelog_1005_li
Page store: new databases can not be opened with older versions.
Page store: new databases can not be opened with older versions.
@changelog_1004_li
@changelog_1006_li
Page store: adding data to new database is now faster.
Page store: adding data to new database is now faster.
@changelog_1005_li
@changelog_1007_li
File system: getting the file name from a path is now faster. This should speed up BLOB and CLOB access.
File system: getting the file name from a path is now faster. This should speed up BLOB and CLOB access.
@changelog_1006_li
@changelog_1008_li
PgServer: incorrect SQL types were returned in result set meta data. Concurrently opening a database could fail (PG catalog initialization was not synchronized). Thanks a lot to Sergi Vladykin for providing the patches!
PgServer: incorrect SQL types were returned in result set meta data. Concurrently opening a database could fail (PG catalog initialization was not synchronized). Thanks a lot to Sergi Vladykin for providing the patches!
@changelog_1007_li
@changelog_1009_li
SHOW COLUMNS did not work correctly if there where multiple indexes on the same columns.
SHOW COLUMNS did not work correctly if there where multiple indexes on the same columns.
@changelog_1008_li
@changelog_1010_li
Page store: the wrong write count was written to the database header. This could cause the server-less multi-connection mode to fail.
Page store: the wrong write count was written to the database header. This could cause the server-less multi-connection mode to fail.
@changelog_1009_li
@changelog_1011_li
Result sets larger than 2 GB threw an exception "Negative seek offset". Fixed.
Result sets larger than 2 GB threw an exception "Negative seek offset". Fixed.
@changelog_1010_li
@changelog_1012_li
If the system property h2.check was set to false, an ArrayIndexOutOfBoundsException could occur.
If the system property h2.check was set to false, an ArrayIndexOutOfBoundsException could occur.
@changelog_1011_li
@changelog_1013_li
Alter table is now supported even if a table has views defined.
Alter table is now supported even if a table has views defined.
@changelog_1012_li
@changelog_1014_li
Fulltext search: exceptions within the fulltext search package had the wrong SQL state.
Fulltext search: exceptions within the fulltext search package had the wrong SQL state.
@changelog_1013_li
@changelog_1015_li
The Lucene fulltext search ignored transaction rollback. Fixed using a trigger on rollback.
The Lucene fulltext search ignored transaction rollback. Fixed using a trigger on rollback.
@changelog_1014_li
@changelog_1016_li
Trigger can now be called on rollback.
Trigger can now be called on rollback.
@changelog_1015_li
@changelog_1017_li
The shell script h2.sh ignored command line line arguments.
The shell script h2.sh ignored command line line arguments.
@changelog_1016_li
@changelog_1018_li
When running H2 in the Google AppEngine for Java, a AccessControlException could be thrown when trying to open a read-only database. Fixed.
When running H2 in the Google AppEngine for Java, a AccessControlException could be thrown when trying to open a read-only database. Fixed.
@changelog_1017_li
@changelog_1019_li
The user home directory prefix (~) is now only expanded when followed by a slash or backslash, or standing alone.
The user home directory prefix (~) is now only expanded when followed by a slash or backslash, or standing alone.
@changelog_1018_li
@changelog_1020_li
Native fulltext search: before inserting or deleting data, FT_INIT() had to be called. This is no longer required.
Native fulltext search: before inserting or deleting data, FT_INIT() had to be called. This is no longer required.
@changelog_1019_li
@changelog_1021_li
The .trace.db file is now only created if required.
The .trace.db file is now only created if required.
@changelog_1020_li
@changelog_1022_li
Shell tool: improved PostgreSQL compatibility.
Shell tool: improved PostgreSQL compatibility.
@changelog_1021_li
@changelog_1023_li
Trying to open a database in read-only mode when a .lock.db file exists will now fail with a nice error message.
Trying to open a database in read-only mode when a .lock.db file exists will now fail with a nice error message.
@changelog_1022_li
@changelog_1024_li
H2 Console: data that is too long is now abbreviated as follows: text... (100000 characters). A large binary is abbreviated as follows: abcdef... (100000 bytes).
H2 Console: data that is too long is now abbreviated as follows: text... (100000 characters). A large binary is abbreviated as follows: abcdef... (100000 bytes).
@changelog_1023_li
@changelog_1025_li
Faster data conversion from BIGINT or INT to DECIMAL.
Faster data conversion from BIGINT or INT to DECIMAL.
@changelog_1024_li
@changelog_1026_li
Server-less multi-connection mode: try to delete log files if switching between read/write operations.
Server-less multi-connection mode: try to delete log files if switching between read/write operations.
@changelog_1025_li
@changelog_1027_li
CompressLZF: Faster decompress and improved javadocs
CompressLZF: Faster decompress and improved javadocs
@changelog_1026_h2
@changelog_1028_h2
Version 1.2.126 (2009-12-18)
Version 1.2.126 (2009-12-18)
@changelog_1027_li
@changelog_1029_li
The ChangeFileEncryption tool will now fail with an exception if the database is still in use. The Backup tool will also fail except when running in quiet mode.
The ChangeFileEncryption tool will now fail with an exception if the database is still in use. The Backup tool will also fail except when running in quiet mode.
@changelog_1028_li
@changelog_1030_li
CSVREAD: when reading the column names from the CSV file, column names that contain no special characters are considered case insensitive now.
CSVREAD: when reading the column names from the CSV file, column names that contain no special characters are considered case insensitive now.
@changelog_1029_li
@changelog_1031_li
Optimization index conditions of the form 'column=NULL' (which is always false; unlike 'column IS NULL').
Optimization index conditions of the form 'column=NULL' (which is always false; unlike 'column IS NULL').
@changelog_1030_li
@changelog_1032_li
Script command and tool: the primary key constraint is now listed before inserting the data. This will result in a smaller database when using the page store.
Script command and tool: the primary key constraint is now listed before inserting the data. This will result in a smaller database when using the page store.
@changelog_1031_li
@changelog_1033_li
Statements with IN(SELECT..) conditions could produce the wrong result. Example: index on id, name; query: select * from test where id between 1 and 3 and name in (select 'World').
Statements with IN(SELECT..) conditions could produce the wrong result. Example: index on id, name; query: select * from test where id between 1 and 3 and name in (select 'World').
@changelog_1032_li
@changelog_1034_li
Statements with IN(..) conditions could produce the wrong result when using views or nested select statements. Example: index on id; index on name; query: select * from (select * from test) where id=1 and name in('a', 'b'). select * from (select * from test) where id=1 and name in('Hello', 'World').
Statements with IN(..) conditions could produce the wrong result when using views or nested select statements. Example: index on id; index on name; query: select * from (select * from test) where id=1 and name in('a', 'b'). select * from (select * from test) where id=1 and name in('Hello', 'World').
@changelog_1033_li
@changelog_1035_li
Page store: a rollback of a relatively large transaction could fail with an ArrayIndexOutOfBoundsException or a 'row not found' exception in the PageBtreeIndex in some cases.
Page store: a rollback of a relatively large transaction could fail with an ArrayIndexOutOfBoundsException or a 'row not found' exception in the PageBtreeIndex in some cases.
@changelog_1034_li
@changelog_1036_li
JaQu: the decompiler has been improved, and a few test cases already work. It is still incomplete however.
JaQu: the decompiler has been improved, and a few test cases already work. It is still incomplete however.
@changelog_1035_li
@changelog_1037_li
LIKE: any letter is now allowed after the escape character (which is still '\' by default). Previously, an exception was thrown (unlike other databases) if it was not the escape character, '_' or '%'. If the escape character appears at the end of the pattern, the result is it is ignored (like PostgreSQL and MS SQL Server).
LIKE: any letter is now allowed after the escape character (which is still '\' by default). Previously, an exception was thrown (unlike other databases) if it was not the escape character, '_' or '%'. If the escape character appears at the end of the pattern, the result is it is ignored (like PostgreSQL and MS SQL Server).
@changelog_1036_li
@changelog_1038_li
The reserve heap memory is no longer used.
The reserve heap memory is no longer used.
@changelog_1037_li
@changelog_1039_li
Database.checkpoint() could throw a NullPointerException.
Database.checkpoint() could throw a NullPointerException.
@changelog_1038_h2
@changelog_1040_h2
Version 1.2.125 (2009-12-06)
Version 1.2.125 (2009-12-06)
@changelog_1039_li
@changelog_1041_li
Lucene fulltext search: the Lucene field names now match the table column names, except if the column names start with _ (in which case another _ is prepended). Unfortunately this change means existing fulltext indexes need to be re-built.
Lucene fulltext search: the Lucene field names now match the table column names, except if the column names start with _ (in which case another _ is prepended). Unfortunately this change means existing fulltext indexes need to be re-built.
@changelog_1040_li
@changelog_1042_li
The shell tool now has a very simple statement history.
The shell tool now has a very simple statement history.
@changelog_1041_li
@changelog_1043_li
The zip file system implementation now supports the '~' home directory prefix. Example database URL: jdbc:h2:zip:~/test.zip!/test
The zip file system implementation now supports the '~' home directory prefix. Example database URL: jdbc:h2:zip:~/test.zip!/test
@changelog_1042_li
@changelog_1044_li
Right outer joins on tables that were already 'inner joined' was processed incorrectly.
Right outer joins on tables that were already 'inner joined' was processed incorrectly.
@changelog_1043_li
@changelog_1045_li
Temporary files from LOB objects were not deleted early enough when using the server mode.
Temporary files from LOB objects were not deleted early enough when using the server mode.
@changelog_1044_li
@changelog_1046_li
Trying to alter a temporary table threw a strange exception. It is still not possible to do that, but the exception message is better now.
Trying to alter a temporary table threw a strange exception. It is still not possible to do that, but the exception message is better now.
@changelog_1045_li
@changelog_1047_li
When the system property h2.maxMemoryRowsDistinct was set, and using SELECT DISTINCT, the temporary table was not correctly dropped. This could cause problems in recovery when the process was killed.
When the system property h2.maxMemoryRowsDistinct was set, and using SELECT DISTINCT, the temporary table was not correctly dropped. This could cause problems in recovery when the process was killed.
@changelog_1046_li
@changelog_1048_li
Trigger that are called before a select statement are now supported. This allows to create tables that work like materialized views.
Trigger that are called before a select statement are now supported. This allows to create tables that work like materialized views.
@changelog_1047_li
@changelog_1049_li
Non-row based triggers were called even if the action didn't match the declared action (INSERT triggers were also called when deleting rows). This has been changed. The MERGE statement calls both INSERT and DELETE triggers.
Non-row based triggers were called even if the action didn't match the declared action (INSERT triggers were also called when deleting rows). This has been changed. The MERGE statement calls both INSERT and DELETE triggers.
@changelog_1048_li
@changelog_1050_li
Statements with IN(..) conditions could produce the wrong result or a data conversion error (since version 1.2.120). Examples: index on id, name, condition: id=1 and name in('Hello', 'x'); index on id, query: select * from (select * from test) where id=1 and name in('Hello', 'World').
Statements with IN(..) conditions could produce the wrong result or a data conversion error (since version 1.2.120). Examples: index on id, name, condition: id=1 and name in('Hello', 'x'); index on id, query: select * from (select * from test) where id=1 and name in('Hello', 'World').
@changelog_1049_li
@changelog_1051_li
The CompressTool was not multithreading safe. Because of this, the following database operations where also not multithreading safe (even when using different databases): the SCRIPT command (only when using compression), the COMPRESS function, and storing CLOB or BLOB data (only when compression is enabled).
The CompressTool was not multithreading safe. Because of this, the following database operations where also not multithreading safe (even when using different databases): the SCRIPT command (only when using compression), the COMPRESS function, and storing CLOB or BLOB data (only when compression is enabled).
@changelog_1050_li
@changelog_1052_li
The compression algorithm "LZF" is now about 33% faster than before when compressing small block (around 2 KB). It is much faster than Deflate, but the compression ratio is lower. Some of the optimizations are from Sam Van Oort, thanks a lot!
The compression algorithm "LZF" is now about 33% faster than before when compressing small block (around 2 KB). It is much faster than Deflate, but the compression ratio is lower. Some of the optimizations are from Sam Van Oort, thanks a lot!
@changelog_1051_li
@changelog_1053_li
Compressing large blocks of data didn't work when using the "Deflate" compression algorithm. Compressing a lot of data could run out of heap memory.
Compressing large blocks of data didn't work when using the "Deflate" compression algorithm. Compressing a lot of data could run out of heap memory.
@changelog_1052_li
@changelog_1054_li
The test cases don't access the file system directly, this simplifies GAE for Java testing. Thanks to Vince Bonfanti.
The test cases don't access the file system directly, this simplifies GAE for Java testing. Thanks to Vince Bonfanti.
@changelog_1053_li
@changelog_1055_li
More bugs in the server-less multi-connection mode have been fixed.
More bugs in the server-less multi-connection mode have been fixed.
@changelog_1054_li
@changelog_1056_li
When running against an old database, the SCRIPT statement could generate a SQL script that contained duplicate indexes (PRIMARY_KEY_E).
When running against an old database, the SCRIPT statement could generate a SQL script that contained duplicate indexes (PRIMARY_KEY_E).
@changelog_1055_li
@changelog_1057_li
JdbcConnectionPool.getConnection() could throw a NullPointerException.
JdbcConnectionPool.getConnection() could throw a NullPointerException.
@changelog_1056_li
@changelog_1058_li
User defined functions: the source code is now available using SELECT SOURCE FROM INFORMATION_SCHEMA.FUNCTION_ALIASES.
User defined functions: the source code is now available using SELECT SOURCE FROM INFORMATION_SCHEMA.FUNCTION_ALIASES.
@changelog_1057_li
@changelog_1059_li
User defined functions with source code didn't work after re-opening the database.
User defined functions with source code didn't work after re-opening the database.
@changelog_1058_li
@changelog_1060_li
The newsfeeds are now Atom 1.0 standard compliant.
The newsfeeds are now Atom 1.0 standard compliant.
@changelog_1059_li
@changelog_1061_li
The database is now closed after an out of memory exception, because the database could get corrupt otherwise.
The database is now closed after an out of memory exception, because the database could get corrupt otherwise.
@changelog_1060_li
@changelog_1062_li
Better error message if both AUTO_SERVER and SERIALIZED parameters are set to TRUE.
Better error message if both AUTO_SERVER and SERIALIZED parameters are set to TRUE.
@changelog_1061_li
@changelog_1063_li
Drop table did not delete lob files in old file store (not PAGE_STORE).
Drop table did not delete lob files in old file store (not PAGE_STORE).
@changelog_1062_h2
@changelog_1064_h2
Version 1.2.124 (2009-11-20)
Version 1.2.124 (2009-11-20)
@changelog_1063_li
@changelog_1065_li
Clustering: there is now a way to detect which cluster instances are running.
Clustering: there is now a way to detect which cluster instances are running.
@changelog_1064_li
@changelog_1066_li
ConvertTraceFile: the SQL statement statistics are better formatted (newline are removed).
ConvertTraceFile: the SQL statement statistics are better formatted (newline are removed).
@changelog_1065_li
@changelog_1067_li
The file lock thread is now stopped when the database is closed.
The file lock thread is now stopped when the database is closed.
@changelog_1066_li
@changelog_1068_li
Issue 140: the Script tool now supports writing to a stream.
Issue 140: the Script tool now supports writing to a stream.
@changelog_1067_li
@changelog_1069_li
Issue 138: the trace output of Statement.execute(String, int) and executeUpdate was incorrect.
Issue 138: the trace output of Statement.execute(String, int) and executeUpdate was incorrect.
@changelog_1068_li
@changelog_1070_li
Page store: new databases can not be opened with older versions.
Page store: new databases can not be opened with older versions.
@changelog_1069_li
@changelog_1071_li
Page store: multi-column indexes didn't work if the cache was very small.
Page store: multi-column indexes didn't work if the cache was very small.
@changelog_1070_li
@changelog_1072_li
Page store: opening a database could theoretically result in an endless loop.
Page store: opening a database could theoretically result in an endless loop.
@changelog_1071_li
@changelog_1073_li
Page store: adding large indexed columns could get very slow.
Page store: adding large indexed columns could get very slow.
@changelog_1072_li
@changelog_1074_li
Page store: after a duplicate key exception, an ArrayIndexOutOfBoundsException could be thrown (only for very large rows).
Page store: after a duplicate key exception, an ArrayIndexOutOfBoundsException could be thrown (only for very large rows).
@changelog_1073_li
@changelog_1075_li
Page store: the recover tool sometimes generated a script file that contained duplicate data.
Page store: the recover tool sometimes generated a script file that contained duplicate data.
@changelog_1074_li
@changelog_1076_li
Page store: sometimes opening a read-only database failed.
Page store: sometimes opening a read-only database failed.
@changelog_1075_li
@changelog_1077_li
Page store: opening a database sometimes failed if large rows where updated, or if a table was truncated before.
Page store: opening a database sometimes failed if large rows where updated, or if a table was truncated before.
@changelog_1076_li
@changelog_1078_li
Page store: when using a very small page size (128 bytes or smaller), writing a large row could result in an endless recursion. This is only a theoretical problem, as the page size is 2 KB.
Page store: when using a very small page size (128 bytes or smaller), writing a large row could result in an endless recursion. This is only a theoretical problem, as the page size is 2 KB.
@changelog_1077_li
@changelog_1079_li
Page store: getting the min value from a descending index with NULL entries could return the wrong result.
Page store: getting the min value from a descending index with NULL entries could return the wrong result.
@changelog_1078_li
@changelog_1080_li
Page store: improved auto-recovery after power failure.
Page store: improved auto-recovery after power failure.
@changelog_1079_li
@changelog_1081_li
The JDBC client did not detect that it was not talking to an H2 server. This could result in strange exceptions when trying to connect to another kind of server.
The JDBC client did not detect that it was not talking to an H2 server. This could result in strange exceptions when trying to connect to another kind of server.
@changelog_1080_li
@changelog_1082_li
User defined functions can be created with source code. Example: CREATE ALIAS HI AS 'String hi() { return "Hello"; }'
User defined functions can be created with source code. Example: CREATE ALIAS HI AS 'String hi() { return "Hello"; }'
@changelog_1081_li
@changelog_1083_li
Database file lock: the exception "lock file modified in the future" is no longer thrown; instead, opening the file will be delayed by 2 seconds.
Database file lock: the exception "lock file modified in the future" is no longer thrown; instead, opening the file will be delayed by 2 seconds.
@changelog_1082_li
@changelog_1084_li
Inserting LOBs got slower each time the process was restarted. It could loop endlessly after about 1000 process restarts.
Inserting LOBs got slower each time the process was restarted. It could loop endlessly after about 1000 process restarts.
@changelog_1083_li
@changelog_1085_li
Issue 117: Multi-version concurrency: concurrent MERGE statements now work.
Issue 117: Multi-version concurrency: concurrent MERGE statements now work.
@changelog_1084_li
@changelog_1086_li
Improved read-only database detection.
Improved read-only database detection.
@changelog_1085_h2
@changelog_1087_h2
Version 1.2.123 (2009-11-08)
Version 1.2.123 (2009-11-08)
@changelog_1086_li
@changelog_1088_li
Page store: new databases can not be opened with older versions.
Page store: new databases can not be opened with older versions.
@changelog_1087_li
@changelog_1089_li
Page store: updating large rows (rows with more than 2000 bytes of data) could corrupt the database.
Page store: updating large rows (rows with more than 2000 bytes of data) could corrupt the database.
@changelog_1088_li
@changelog_1090_li
Page store: inserting very large rows failed with ArrayIndexOutOfBoundsException.
Page store: inserting very large rows failed with ArrayIndexOutOfBoundsException.
@changelog_1089_li
@changelog_1091_li
When using multi-threaded kernel mode, setting disabling locking (LOCK_MODE=0) will now throw an exception. At this time this combination will result in corruption when multiple threads try to update the same table.
When using multi-threaded kernel mode, setting disabling locking (LOCK_MODE=0) will now throw an exception. At this time this combination will result in corruption when multiple threads try to update the same table.
@changelog_1090_li
@changelog_1092_li
The fulltext search methods and fields are now protected instead of private, to make the classes more easily extensible.
The fulltext search methods and fields are now protected instead of private, to make the classes more easily extensible.
@changelog_1091_li
@changelog_1093_li
The Lucene fulltext search now also returns the score.
The Lucene fulltext search now also returns the score.
@changelog_1092_li
@changelog_1094_li
New function SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger.
New function SCOPE_IDENTITY() to avoid problems when inserting rows in a trigger.
@changelog_1093_li
@changelog_1095_li
Statement.getGeneratedKeys() returned the wrong value if a trigger changed the identity value after inserting the row.
Statement.getGeneratedKeys() returned the wrong value if a trigger changed the identity value after inserting the row.
@changelog_1094_li
@changelog_1096_li
Improved error messages: identifiers and values are now quoted.
Improved error messages: identifiers and values are now quoted.
@changelog_1095_li
@changelog_1097_li
Improved error message when casting a value failed: the column name and type is included in the message.
Improved error message when casting a value failed: the column name and type is included in the message.
@changelog_1096_li
@changelog_1098_li
Improved support for GAE for Java thanks to Vince Bonfanti.
Improved support for GAE for Java thanks to Vince Bonfanti.
@changelog_1097_h2
@changelog_1099_h2
Version 1.2.122 (2009-10-28)
Version 1.2.122 (2009-10-28)
@changelog_1098_li
@changelog_1100_li
The native fulltext search now supports streaming CLOB data.
The native fulltext search now supports streaming CLOB data.
@changelog_1099_li
@changelog_1101_li
If the database URL ends with ;PAGE_STORE=TRUE and a database in the old format exists, it is automatically converted to the new page store format if possible. A backup of the database is created first. Automatic conversion is not supported if the database was not closed normally (if it contains uncommitted transactions).
If the database URL ends with ;PAGE_STORE=TRUE and a database in the old format exists, it is automatically converted to the new page store format if possible. A backup of the database is created first. Automatic conversion is not supported if the database was not closed normally (if it contains uncommitted transactions).
@changelog_1100_li
@changelog_1102_li
Dropping the current user is now allowed if another admin user exists.
Dropping the current user is now allowed if another admin user exists.
@changelog_1101_li
@changelog_1103_li
Values of type BINARY or BLOB could not be converted to the data type OTHER.
Values of type BINARY or BLOB could not be converted to the data type OTHER.
@changelog_1102_li
@changelog_1104_li
SHUTDOWN COMPACT now fully compacts the database.
SHUTDOWN COMPACT now fully compacts the database.
@changelog_1103_li
@changelog_1105_li
New system properties h2.maxCompactCount and h2.maxCompactTime to allow changing the default behavior (at most 2 seconds compacting when closing the database).
New system properties h2.maxCompactCount and h2.maxCompactTime to allow changing the default behavior (at most 2 seconds compacting when closing the database).
@changelog_1104_li
@changelog_1106_li
New sorted insert optimization (see Performance / Database Performance Tuning).
New sorted insert optimization (see Performance / Database Performance Tuning).
@changelog_1105_li
@changelog_1107_li
Issue 116: The files h2*-sources.jar and h2*-javadoc.jar are now in the Maven repository.
Issue 116: The files h2*-sources.jar and h2*-javadoc.jar are now in the Maven repository.
@changelog_1106_li
@changelog_1108_li
Page store: opening a large database was slow if it was not closed before.
Page store: opening a large database was slow if it was not closed before.
@changelog_1107_li
@changelog_1109_li
Page store: new write and read counters in the meta data table. Use SELECT * FROM INFORMATION_SCHEMA.SETTINGS WHERE NAME IN( 'info.FILE_WRITE_TOTAL', 'info.FILE_WRITE', 'info.FILE_READ', 'info.CACHE_MAX_SIZE', 'info.CACHE_SIZE')
Page store: new write and read counters in the meta data table. Use SELECT * FROM INFORMATION_SCHEMA.SETTINGS WHERE NAME IN( 'info.FILE_WRITE_TOTAL', 'info.FILE_WRITE', 'info.FILE_READ', 'info.CACHE_MAX_SIZE', 'info.CACHE_SIZE')
@changelog_1108_li
@changelog_1110_li
The SQL syntax is documented using (railroad) diagrams. The diagrams are HTML.
The SQL syntax is documented using (railroad) diagrams. The diagrams are HTML.
@changelog_1109_li
@changelog_1111_li
The documentation is no longer available in Japanese because the translation was too much out of sync. Please use the Google translation instead.
The documentation is no longer available in Japanese because the translation was too much out of sync. Please use the Google translation instead.
@changelog_1110_li
@changelog_1112_li
Certain queries were not sorted if subselect queries were involved
Certain queries were not sorted if subselect queries were involved
@changelog_1111_li
@changelog_1113_li
More bugs in the server-less multi-connection mode have been fixed: 90097 The database is read only, caches must be cleared on reconnect, etc.
More bugs in the server-less multi-connection mode have been fixed: 90097 The database is read only, caches must be cleared on reconnect, etc.
@changelog_1112_h2
@changelog_1114_h2
Version 1.2.121 (2009-10-11)
Version 1.2.121 (2009-10-11)
@changelog_1113_li
@changelog_1115_li
Better support GaeVFS (Google App Engine Virtual File System) thanks to Thanks to Vince Bonfanti.
Better support GaeVFS (Google App Engine Virtual File System) thanks to Thanks to Vince Bonfanti.
@changelog_1114_li
@changelog_1116_li
CSVREAD didn't close the file. Thanks to Vince Bonfanti for the patch!
CSVREAD didn't close the file. Thanks to Vince Bonfanti for the patch!
@changelog_1115_li
@changelog_1117_li
If a database in the old format exists, it is now used. The system property is used for new databases, or if databases exist in both formats. In any case, the flag in the URL overrides this logic.
If a database in the old format exists, it is now used. The system property is used for new databases, or if databases exist in both formats. In any case, the flag in the URL overrides this logic.
@changelog_1116_li
@changelog_1118_li
Page store bugs were fixed. Large values in indexed columns could corrupt the index.
Page store bugs were fixed. Large values in indexed columns could corrupt the index.
@changelog_1117_li
@changelog_1119_li
The page store did not work when using Retrotranslator (because the Retrotranslator doesn't support Integer.reverse and Long.reverse).
The page store did not work when using Retrotranslator (because the Retrotranslator doesn't support Integer.reverse and Long.reverse).
@changelog_1118_li
@changelog_1120_li
New system property h2.pageStoreTrim to disable shrinking the database when closing (disabled by default, meaning by default the database is trimmed).
New system property h2.pageStoreTrim to disable shrinking the database when closing (disabled by default, meaning by default the database is trimmed).
@changelog_1119_h2
@changelog_1121_h2
Version 1.2.120 (2009-10-04)
Version 1.2.120 (2009-10-04)
@changelog_1120_li
@changelog_1122_li
This is a beta version.
This is a beta version.
@changelog_1121_li
@changelog_1123_li
Large updates could throw an ArrayIndexOutOfBoundsException in RowList.writeRow.
Large updates could throw an ArrayIndexOutOfBoundsException in RowList.writeRow.
@changelog_1122_li
@changelog_1124_li
In version 1.2, the following system properties are now enabled by default: h2.pageStore, h2.nullConcatIsNull, h2.optimizeInList. The default value for h2.defaultMaxLengthInplaceLob is now 4096 (it was 1024 with version 1.1).
In version 1.2, the following system properties are now enabled by default: h2.pageStore, h2.nullConcatIsNull, h2.optimizeInList. The default value for h2.defaultMaxLengthInplaceLob is now 4096 (it was 1024 with version 1.1).
@changelog_1123_li
@changelog_1125_li
New databases are now stored in the new 'page store' file format. Existing databases are kept in the old file format. To use the old file format, append ;PAGE_STORE=FALSE to the database URL or set the system property h2.pageStore to false.
New databases are now stored in the new 'page store' file format. Existing databases are kept in the old file format. To use the old file format, append ;PAGE_STORE=FALSE to the database URL or set the system property h2.pageStore to false.
@changelog_1124_li
@changelog_1126_li
Issue 125: Renaming primary keys was not persistent. Fixed. Unfortunately, databases created by this version can not be opened with older versions because of this change.
Issue 125: Renaming primary keys was not persistent. Fixed. Unfortunately, databases created by this version can not be opened with older versions because of this change.
@changelog_1125_li
@changelog_1127_li
Issue 124: Hibernate schema validation failed for decimal/numeric columns. This problem is fixed in the Hibernate dialect that is included with H2 (src/tools/org/hibernate/dialect/H2Dialect.java.txt), but not in Hibernate yet.
Issue 124: Hibernate schema validation failed for decimal/numeric columns. This problem is fixed in the Hibernate dialect that is included with H2 (src/tools/org/hibernate/dialect/H2Dialect.java.txt), but not in Hibernate yet.
@changelog_1126_li
@changelog_1128_li
PostgreSQL compatibility: function LASTVAL() as an alias for IDENTITY().
PostgreSQL compatibility: function LASTVAL() as an alias for IDENTITY().
@changelog_1127_li
@changelog_1129_li
Linked tables now support default values when inserting, updating or merging.
Linked tables now support default values when inserting, updating or merging.
@changelog_1128_li
@changelog_1130_li
Bugfixes in the page store.
Bugfixes in the page store.
@changelog_1129_li
@changelog_1131_li
Possibility to set a vendor id in Constants.java, so that unofficial builds are distinguishable from official releases.
Possibility to set a vendor id in Constants.java, so that unofficial builds are distinguishable from official releases.
@changelog_1130_li
@changelog_1132_li
Allow writing to linked tables in readonly databases.
Allow writing to linked tables in readonly databases.
@changelog_1131_h2
@changelog_1133_h2
Version 1.1.119 (2009-09-26)
Version 1.1.119 (2009-09-26)
@changelog_1132_li
@changelog_1134_li
SQL statements in the exception message are no longer included if they contain '--hide--'.
SQL statements in the exception message are no longer included if they contain '--hide--'.
@changelog_1133_li
@changelog_1135_li
Temporary local tables did not always work after reconnect if AUTO_SERVER=TRUE
Temporary local tables did not always work after reconnect if AUTO_SERVER=TRUE
@changelog_1134_li
@changelog_1136_li
New system property h2.defaultMaxLengthInplaceLob to change the default maximum size of an in-place LOB object.
New system property h2.defaultMaxLengthInplaceLob to change the default maximum size of an in-place LOB object.
@changelog_1135_li
@changelog_1137_li
New system property h2.nullConcatIsNull to change the default null concatenation behavior. The default will be enabled in version 1.2.
New system property h2.nullConcatIsNull to change the default null concatenation behavior. The default will be enabled in version 1.2.
@changelog_1136_li
@changelog_1138_li
The cache algorithm TQ is disabled in this version, because it is unstable, and because the current implementation does not have any measurable advantages over the default.
The cache algorithm TQ is disabled in this version, because it is unstable, and because the current implementation does not have any measurable advantages over the default.
@changelog_1137_li
@changelog_1139_li
New committer: Christian Peter. He works for <a href="http://www.docware.com">Docware</a> and helped a lot finding and fixing bugs, and generally improving the database. He is now a committer.
New committer: Christian Peter. He works for <a href="http://www.docware.com">Docware</a> and helped a lot finding and fixing bugs, and generally improving the database. He is now a committer.
@changelog_1138_li
@changelog_1140_li
ChangeFileEncryption did not work with Lob subdirectories. Fixed.
ChangeFileEncryption did not work with Lob subdirectories. Fixed.
@changelog_1139_li
@changelog_1141_li
Issue 121: JaQu: new simple update and merge methods.
Issue 121: JaQu: new simple update and merge methods.
@changelog_1140_li
@changelog_1142_li
Issue 120: JaQu didn't close result sets.
Issue 120: JaQu didn't close result sets.
@changelog_1141_li
@changelog_1143_li
Issue 119: JaQu creates wrong WHERE conditions on some inputs.
Issue 119: JaQu creates wrong WHERE conditions on some inputs.
@changelog_1142_li
@changelog_1144_li
The new page store mechanism is now alpha-level quality. The next release will most likely be "1.2.120 beta" where this mode is enabled by default. To use it right now, append ;PAGE_STORE=TRUE to the database URL. The file format of this mode will probably not change any more.
The new page store mechanism is now alpha-level quality. The next release will most likely be "1.2.120 beta" where this mode is enabled by default. To use it right now, append ;PAGE_STORE=TRUE to the database URL. The file format of this mode will probably not change any more.
@changelog_1143_li
@changelog_1145_li
SELECT COUNT(*) FROM SYSTEM_RANGE(...) returned the wrong result. Fixed.
SELECT COUNT(*) FROM SYSTEM_RANGE(...) returned the wrong result. Fixed.
@changelog_1144_li
@changelog_1146_li
The Recover tool now also processes the log files, however applying those changes is still a manual process.
The Recover tool now also processes the log files, however applying those changes is still a manual process.
@changelog_1145_li
@changelog_1147_li
New sample application that shows how to pass data to a trigger.
New sample application that shows how to pass data to a trigger.
@changelog_1146_li
@changelog_1148_li
More bugs in the server-less multi-connection mode have been fixed: On Windows, two processes could write to the same database at the same time.
More bugs in the server-less multi-connection mode have been fixed: On Windows, two processes could write to the same database at the same time.
@changelog_1147_li
@changelog_1149_li
When loading triggers or other client classes (static functions, database event listener, user aggregate functions, other JDBC drivers), the database now uses the context class loader if the class could not be found using Class.forName().
When loading triggers or other client classes (static functions, database event listener, user aggregate functions, other JDBC drivers), the database now uses the context class loader if the class could not be found using Class.forName().
@changelog_1148_li
@changelog_1150_li
Updating many rows with the same CLOB or BLOB values could result in FileNotFoundException.
Updating many rows with the same CLOB or BLOB values could result in FileNotFoundException.
@changelog_1149_li
@changelog_1151_li
Statement.getConnection() threw an exception if the connection was already closed.
Statement.getConnection() threw an exception if the connection was already closed.
@changelog_1150_li
@changelog_1152_li
The native fulltext index kept a reference to a database after the database was closed.
The native fulltext index kept a reference to a database after the database was closed.
@changelog_1151_li
@changelog_1153_li
Non-unique in-memory hash indexes are now supported. Thanks a lot to Sergi Vladykin for the patch!
Non-unique in-memory hash indexes are now supported. Thanks a lot to Sergi Vladykin for the patch!
@changelog_1152_li
@changelog_1154_li
The optimizer does a better job for joins if indexes are missing.
The optimizer does a better job for joins if indexes are missing.
@changelog_1153_h2
@changelog_1155_h2
Version 1.1.118 (2009-09-04)
Version 1.1.118 (2009-09-04)
@changelog_1154_li
@changelog_1156_li
SHOW COLUMNS only listed indexed columns.
SHOW COLUMNS only listed indexed columns.
@changelog_1155_li
@changelog_1157_li
When calling SHUTDOWN IMMEDIATELY in the server mode, the .trace.db file was not closed.
When calling SHUTDOWN IMMEDIATELY in the server mode, the .trace.db file was not closed.
@changelog_1156_li
@changelog_1158_li
DatabaseMetaData.getPrimaryKeys: the wrong constraint name was reported if there was another constraint on the same table and columns.
DatabaseMetaData.getPrimaryKeys: the wrong constraint name was reported if there was another constraint on the same table and columns.
@changelog_1157_li
@changelog_1159_li
AUTO_INCREMENT now works in the same way in ALTER TABLE ALTER COLUMN as in CREATE TABLE (it does not create a primary key).
AUTO_INCREMENT now works in the same way in ALTER TABLE ALTER COLUMN as in CREATE TABLE (it does not create a primary key).
@changelog_1158_li
@changelog_1160_li
Native fulltext search: before searching, FT_INIT() had to be called. This is no longer required.
Native fulltext search: before searching, FT_INIT() had to be called. This is no longer required.
@changelog_1159_li
@changelog_1161_li
Better support GaeVFS (Google App Engine Virtual File System).
Better support GaeVFS (Google App Engine Virtual File System).
@changelog_1160_li
@changelog_1162_li
JaQu: the plan is to support natural (pure Java / Scala) conditions such as (id == 1 && name.equals("Test")). A proof of concept decompiler is now included (it doesn't work yet).
JaQu: the plan is to support natural (pure Java / Scala) conditions such as (id == 1 && name.equals("Test")). A proof of concept decompiler is now included (it doesn't work yet).
@changelog_1161_li
@changelog_1163_li
Various bugfixes and improvements in the page store mechanism (still experimental).
Various bugfixes and improvements in the page store mechanism (still experimental).
@changelog_1162_li
@changelog_1164_li
PreparedStatement.setObject now converts a java.lang.Character to a string.
PreparedStatement.setObject now converts a java.lang.Character to a string.
@changelog_1163_li
@changelog_1165_li
H2 Console: PierPaolo Ucchino has completed the Italian translation. Thanks a lot!
H2 Console: PierPaolo Ucchino has completed the Italian translation. Thanks a lot!
@changelog_1164_li
@changelog_1166_li
Various tools now use Java 5 var-args, such as main the methods and SimpleResultSet.addRow.
Various tools now use Java 5 var-args, such as main the methods and SimpleResultSet.addRow.
@changelog_1165_li
@changelog_1167_li
H2 Console: indexes of tables of non-default schemas are now also listed.
H2 Console: indexes of tables of non-default schemas are now also listed.
@changelog_1166_li
@changelog_1168_li
Issue 111: Multi-version concurrency / duplicate primary key after rollback.
Issue 111: Multi-version concurrency / duplicate primary key after rollback.
@changelog_1167_li
@changelog_1169_li
Issue 110: Multi-version concurrency / wrong exception is thrown.
Issue 110: Multi-version concurrency / wrong exception is thrown.
@changelog_1168_li
@changelog_1170_li
Parser: sequenceName.NEXTVAL and CURRVAL did not respect the schema search path.
Parser: sequenceName.NEXTVAL and CURRVAL did not respect the schema search path.
@changelog_1169_li
@changelog_1171_li
Issue 101: The following sequence could throw the exception "Row not found when trying to delete": start a transaction, insert many rows, delete many rows, rollback. The number of rows depends on the cache size.
Issue 101: The following sequence could throw the exception "Row not found when trying to delete": start a transaction, insert many rows, delete many rows, rollback. The number of rows depends on the cache size.
@changelog_1170_li
@changelog_1172_li
The stack trace of very common exceptions is no longer written to the .trace.db file by default.
The stack trace of very common exceptions is no longer written to the .trace.db file by default.
@changelog_1171_li
@changelog_1173_li
An optimization for OR is implemented, but disabled by default. Expressions of the type X=1 OR X=2 are converted to X IN(1, 2). To enable, set the system property h2.optimizeInList to true before loading the H2 JDBC driver.
An optimization for OR is implemented, but disabled by default. Expressions of the type X=1 OR X=2 are converted to X IN(1, 2). To enable, set the system property h2.optimizeInList to true before loading the H2 JDBC driver.
@changelog_1172_li
@changelog_1174_li
An optimization for IN(..) and IN(SELECT...) is implemented, but disabled by default. To enable, set the system property h2.optimizeInList to true before loading the H2 JDBC driver. If enabled, this overrides h2.optimizeIn and h2.optimizeInJoin. Unlike now, this optimization will also speed up updates and deletes.
An optimization for IN(..) and IN(SELECT...) is implemented, but disabled by default. To enable, set the system property h2.optimizeInList to true before loading the H2 JDBC driver. If enabled, this overrides h2.optimizeIn and h2.optimizeInJoin. Unlike now, this optimization will also speed up updates and deletes.
@changelog_1173_h2
@changelog_1175_h2
Version 1.1.117 (2009-08-09)
Version 1.1.117 (2009-08-09)
@changelog_1174_li
@changelog_1176_li
New committer: Sam Van Oort has been contributing to H2 since quite some time in many ways (on the mailing list, documentation, and in the form of patches). He is now a committer.
New committer: Sam Van Oort has been contributing to H2 since quite some time in many ways (on the mailing list, documentation, and in the form of patches). He is now a committer.
@changelog_1175_li
@changelog_1177_li
JaQu: the order of the fields in the database no longer needs to match the order in the database.
JaQu: the order of the fields in the database no longer needs to match the order in the database.
@changelog_1176_li
@changelog_1178_li
Issue 103: MVCC: the setting MAX_MEMORY_UNDO can currently not be supported when using multi-version concurrency, that means the complete undo log must fit in memory.
Issue 103: MVCC: the setting MAX_MEMORY_UNDO can currently not be supported when using multi-version concurrency, that means the complete undo log must fit in memory.
@changelog_1177_li
@changelog_1179_li
LIKE: the escape mechanism can now be disable using ESCAPE ''. The default escape character can be changed using the system property h2.defaultEscape. The default is still '\' (as in MySQL and PostgreSQL).
LIKE: the escape mechanism can now be disable using ESCAPE ''. The default escape character can be changed using the system property h2.defaultEscape. The default is still '\' (as in MySQL and PostgreSQL).
@changelog_1178_li
@changelog_1180_li
Views using functions were not re-evaluated when necessary.
Views using functions were not re-evaluated when necessary.
@changelog_1179_li
@changelog_1181_li
Improved MySQL compatibility for SHOW COLUMNS.
Improved MySQL compatibility for SHOW COLUMNS.
@changelog_1180_li
@changelog_1182_li
Improved PostgreSQL compatibility for timestamp literals with timezone.
Improved PostgreSQL compatibility for timestamp literals with timezone.
@changelog_1181_li
@changelog_1183_li
Sergi Vladykin translated the error messages to Russian. Thanks a lot!
Sergi Vladykin translated the error messages to Russian. Thanks a lot!
@changelog_1182_li
@changelog_1184_li
Support for Java 6 DatabaseMetaData.getTables, getColumns, getProcedures, and getProcedureColumns.
Support for Java 6 DatabaseMetaData.getTables, getColumns, getProcedures, and getProcedureColumns.
@changelog_1183_li
@changelog_1185_li
Issue 101: Rollback of a large transaction (more than 100000 rows) could fail.
Issue 101: Rollback of a large transaction (more than 100000 rows) could fail.
@changelog_1184_li
@changelog_1186_li
Various bugfixes and improvements in the page store mechanism (still experimental).
Various bugfixes and improvements in the page store mechanism (still experimental).
@changelog_1185_li
@changelog_1187_li
The functions LENGTH, OCTET_LENGTH, and BIT_LENGTH now return BIGINT.
The functions LENGTH, OCTET_LENGTH, and BIT_LENGTH now return BIGINT.
@changelog_1186_li
@changelog_1188_li
Data types CLOB and BLOB: the maximum precision was Integer.MAX_VALUE, it is now Long.MAX_VALUE.
Data types CLOB and BLOB: the maximum precision was Integer.MAX_VALUE, it is now Long.MAX_VALUE.
@changelog_1187_li
@changelog_1189_li
Multi-threaded kernel: creating and dropping temporary database objects and the potentially free pages list was not correctly synchronized. Thanks a lot to Eric Faulhaber for the test case and patch!
Multi-threaded kernel: creating and dropping temporary database objects and the potentially free pages list was not correctly synchronized. Thanks a lot to Eric Faulhaber for the test case and patch!
@changelog_1188_li
@changelog_1190_li
Parsing SQL script files is now faster.
Parsing SQL script files is now faster.
@changelog_1189_li
@changelog_1191_li
CSV reading is now faster.
CSV reading is now faster.
@changelog_1190_li
@changelog_1192_li
SimpleResultSet.newInstance(SimpleRowSource rs) did not work.
SimpleResultSet.newInstance(SimpleRowSource rs) did not work.
@changelog_1191_h2
@changelog_1193_h2
Version 1.1.116 (2009-07-18)
Version 1.1.116 (2009-07-18)
@changelog_1192_li
@changelog_1194_li
Server-less multi-connection mode: more bugs are fixed.
Server-less multi-connection mode: more bugs are fixed.
@changelog_1193_li
@changelog_1195_li
The built-in help (INFORMATION_SCHEMA.HELP) is smaller, shrinking the jar file size a bit.
The built-in help (INFORMATION_SCHEMA.HELP) is smaller, shrinking the jar file size a bit.
@changelog_1194_li
@changelog_1196_li
H2 Console: column of tables of non-default schemas are now also listed, except for schemas starting with 'INFO'.
H2 Console: column of tables of non-default schemas are now also listed, except for schemas starting with 'INFO'.
@changelog_1195_li
@changelog_1197_li
ALTER TABLE: removing an auto-increment or identity column didn't remove the sequence.
ALTER TABLE: removing an auto-increment or identity column didn't remove the sequence.
@changelog_1196_li
@changelog_1198_li
Creating indexes is now a bit faster.
Creating indexes is now a bit faster.
@changelog_1197_li
@changelog_1199_li
PG Server: new system property h2.pgClientEncoding to explicitly set the encoding for clients that don't send the encoding (the default encoding is UTF-8). Thanks a lot to Sergi Vladykin for the patch!
PG Server: new system property h2.pgClientEncoding to explicitly set the encoding for clients that don't send the encoding (the default encoding is UTF-8). Thanks a lot to Sergi Vladykin for the patch!
@changelog_1198_li
@changelog_1200_li
PG Server: improved compatibility by using the type ids of the PostgreSQL driver. Thanks a lot to Sergi Vladykin for the patch!
PG Server: improved compatibility by using the type ids of the PostgreSQL driver. Thanks a lot to Sergi Vladykin for the patch!
@changelog_1199_li
@changelog_1201_li
H2 Console: Oracle system tables are no longer listed, improving performance.
H2 Console: Oracle system tables are no longer listed, improving performance.
@changelog_1200_li
@changelog_1202_li
Result sets are now read-only except if the statement or prepared statement was created with the concurrency ResultSet.CONCUR_UPDATABLE. This change is required because the old behavior (all result set are updatable) violated the JDBC spec. For backward compatibility, use the system property h2.defaultResultSetConcurrency.
Result sets are now read-only except if the statement or prepared statement was created with the concurrency ResultSet.CONCUR_UPDATABLE. This change is required because the old behavior (all result set are updatable) violated the JDBC spec. For backward compatibility, use the system property h2.defaultResultSetConcurrency.
@changelog_1201_li
@changelog_1203_li
New system property h2.defaultResultSetConcurrency to change the default result set concurrency.
New system property h2.defaultResultSetConcurrency to change the default result set concurrency.
@changelog_1202_li
@changelog_1204_li
JDBC: using an invalid result set type or concurrency now throws an exception.
JDBC: using an invalid result set type or concurrency now throws an exception.
@changelog_1203_li
@changelog_1205_li
If a pooled connection was not closed but garbage collected, a NullPointerException could occur.
If a pooled connection was not closed but garbage collected, a NullPointerException could occur.
@changelog_1204_li
@changelog_1206_li
Fulltext search: a NullPointerException was thrown when updating a value that was NULL previously.
Fulltext search: a NullPointerException was thrown when updating a value that was NULL previously.
@changelog_1205_li
@changelog_1207_li
The Recover tool did not work with .data.db files of the wrong size.
The Recover tool did not work with .data.db files of the wrong size.
@changelog_1206_li
@changelog_1208_li
Triggers: if there was an exception when initializing a trigger, this exception could be hidden, and in some cases (specially when using the Lucene fulltext index mechanism) a NullPointerException was thrown later on. Now the exception that occurred on init is thrown when changing data.
Triggers: if there was an exception when initializing a trigger, this exception could be hidden, and in some cases (specially when using the Lucene fulltext index mechanism) a NullPointerException was thrown later on. Now the exception that occurred on init is thrown when changing data.
@changelog_1207_li
@changelog_1209_li
The soft-references cache (CACHE_TYPE=SOFT_LRU) could throw a NullPointerException.
The soft-references cache (CACHE_TYPE=SOFT_LRU) could throw a NullPointerException.
@changelog_1208_li
@changelog_1210_li
To enable the new page store mechanism, append ;PAGE_STORE=TRUE to the database URL. or set the system property h2.pageStore to true. This mechanism is still experimental, and the file format will change, but it is quite stable now.
To enable the new page store mechanism, append ;PAGE_STORE=TRUE to the database URL. or set the system property h2.pageStore to true. This mechanism is still experimental, and the file format will change, but it is quite stable now.
@changelog_1209_h2
@changelog_1211_h2
Version 1.1.115 (2009-06-21)
Version 1.1.115 (2009-06-21)
@changelog_1210_li
@changelog_1212_li
The new storage mechanism is now alpha quality. To try it out, set the system property "h2.pageStore" to "true" (java -Dh2.pageStore=true). There are still bugs to be found and fixed, for example inserting many rows references a lot of main memory. Performance is currently about the same as with the regular storage mechanism, but the database file size is smaller. The file format is not stable yet.
The new storage mechanism is now alpha quality. To try it out, set the system property "h2.pageStore" to "true" (java -Dh2.pageStore=true). There are still bugs to be found and fixed, for example inserting many rows references a lot of main memory. Performance is currently about the same as with the regular storage mechanism, but the database file size is smaller. The file format is not stable yet.
@changelog_1211_li
@changelog_1213_li
ALTER TABLE could throw an exception "object already exists" in some cases.
ALTER TABLE could throw an exception "object already exists" in some cases.
@changelog_1212_li
@changelog_1214_li
Views: in some situations, an ArrayIndexOutOfBoundsException was thrown when using the same view concurrently.
Views: in some situations, an ArrayIndexOutOfBoundsException was thrown when using the same view concurrently.
@changelog_1213_li
@changelog_1215_li
java.util.UUID is now supported in PreparedStatement.setObject and user defined Java functions. ResultSet.getObject() returns a java.util.UUID when using the UUID data type.
java.util.UUID is now supported in PreparedStatement.setObject and user defined Java functions. ResultSet.getObject() returns a java.util.UUID when using the UUID data type.
@changelog_1214_li
@changelog_1216_li
H2 Console: the language was reset to the browser language when disconnecting.
H2 Console: the language was reset to the browser language when disconnecting.
@changelog_1215_li
@changelog_1217_li
H2 Console: improved Polish translation.
H2 Console: improved Polish translation.
@changelog_1216_li
@changelog_1218_li
Server-less multi-connection mode: more bugs are fixed.
Server-less multi-connection mode: more bugs are fixed.
@changelog_1217_li
@changelog_1219_li
The download page now included the SHA1 checksums.
The download page now included the SHA1 checksums.
@changelog_1218_li
@changelog_1220_li
Shell tool: the file encoding workaround is now documented if you run java org.h2.tools.Shell -?.
Shell tool: the file encoding workaround is now documented if you run java org.h2.tools.Shell -?.
@changelog_1219_li
@changelog_1221_li
The RunScript tool and SQL statement did not work with the compression method LZF.
The RunScript tool and SQL statement did not work with the compression method LZF.
@changelog_1220_li
@changelog_1222_li
Fulltext search: searching for NULL or an empty string threw an exception.
Fulltext search: searching for NULL or an empty string threw an exception.
@changelog_1221_li
@changelog_1223_li
Lucene fulltext search: FTL_DROP_ALL did not drop the triggers.
Lucene fulltext search: FTL_DROP_ALL did not drop the triggers.
@changelog_1222_li
@changelog_1224_li
Backup: if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
Backup: if the database contained CLOB or BLOB data, the backup included a file entry for the LOB directory. This caused the restore to fail.
@changelog_1223_li
@changelog_1225_li
Data types: LONG is now an alias for BIGINT.
Data types: LONG is now an alias for BIGINT.
@changelog_1224_h2
@changelog_1226_h2
Version 1.1.114 (2009-06-01)
Version 1.1.114 (2009-06-01)
@changelog_1225_li
@changelog_1227_li
ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
ResultSetMetaData.getColumnClassName returned the wrong class for CLOB and BLOB columns.
@changelog_1226_li
@changelog_1228_li
Fulltext search: data is no longer deleted and re-inserted if the indexed columns didn't change.
Fulltext search: data is no longer deleted and re-inserted if the indexed columns didn't change.
@changelog_1227_li
@changelog_1229_li
In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
In some situations, an ArrayIndexOutOfBoundsException was thrown when adding rows. This was caused by a bug in the b-tree code.
@changelog_1228_li
@changelog_1230_li
Microsoft Windows Vista: when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
Microsoft Windows Vista: when using the the installer, Vista wrote "This program may not have installed correctly." This message should no longer appear (in the h2.nsi file, the line 'RequestExecutionLevel highest' was added).
@changelog_1229_li
@changelog_1231_li
The Recover tool did not always work when the database contains referential integrity constraints.
The Recover tool did not always work when the database contains referential integrity constraints.
@changelog_1230_li
@changelog_1232_li
Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
Java 1.5 is now required to run H2. If required, Retrotranslator can be used to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
@changelog_1231_h2
@changelog_1233_h2
Version 1.1.113 (2009-05-21)
Version 1.1.113 (2009-05-21)
@changelog_1232_li
@changelog_1234_li
Shell tool: the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
Shell tool: the built-in commands EXIT, HELP, ?, LIST, and so on didn't work with a semicolon at the end.
@changelog_1233_li
@changelog_1235_li
JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
JDK 1.5 is now required to build the jar file. However it is still possible to create a jar file for Java 1.4. For details, see buildRelease.sh and buildRelease.bat. As an alternative, compile using JDK 1.5 or 1.6 and use Retrotranslator to create a Java 1.4 version (http://retrotranslator.sourceforge.net/).
@changelog_1234_li
@changelog_1236_li
When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
When deleting or updating many rows in a table, the space in the index file was not re-used in the default mode (persistent database, b-tree index, LOG=1). This caused the index file to grow over time. Workarounds were to delete and re-created the index file, alter the table (add a remove a column), or append ;LOG=2 to the database URL. To disable the change, set the system property h2.reuseSpaceBtreeIndex to false.
@changelog_1235_li
@changelog_1237_li
Identifiers with a digit and then a dollar sign didn't work. Example: A1$B.
Identifiers with a digit and then a dollar sign didn't work. Example: A1$B.
@changelog_1236_li
@changelog_1238_li
MS SQL Server compatibility: support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
MS SQL Server compatibility: support for linked tables with NVARCHAR, NCHAR, NCLOB, and LONGNVARCHAR.
@changelog_1237_li
@changelog_1239_li
Android: workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
Android: workaround for a problem when using read-only databases in zip files (skip seems to be implemented incorrectly on the Android system).
@changelog_1238_li
@changelog_1240_li
Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
Calling execute() or prepareStatement() with null as the SQL statement now throws an exception.
@changelog_1239_li
@changelog_1241_li
Benchmark: the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
Benchmark: the number of executed statements was incorrect. The H2 database was loaded at the beginning of the test to collect results, now it is loaded at the very end. Thanks to Fred Toussi from HSQLDB for reporting those problems. However the changed do not affect the relative performance.
@changelog_1240_li
@changelog_1242_li
H2 Console: command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
H2 Console: command line settings are no longer stored in the properties file. They are now only used for the current process, except if they are explicitly saved.
@changelog_1241_li
@changelog_1243_li
Cache: support for a second level soft-references cache. To enable it, append ;CACHE_TYPE=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek!
Cache: support for a second level soft-references cache. To enable it, append ;CACHE_TYPE=SOFT_LRU (or SOFT_TQ) to the database URL, or set the system property h2.cacheTypeDefault to "SOFT_LRU" / "SOFT_TQ". Enabling the second level cache reduces performance for small databases, but speeds up large databases. It makes sense to use it if the available memory size is unknown. Thanks a lot to Jan Kotek!
@changelog_1242_h2
@changelog_1244_h2
Version 1.1.112 (2009-05-01)
Version 1.1.112 (2009-05-01)
@changelog_1243_li
@changelog_1245_li
JdbcPreparedStatement.toString() could throw a NullPointerException.
JdbcPreparedStatement.toString() could throw a NullPointerException.
@changelog_1244_li
@changelog_1246_li
EclipseLink: added H2Platform.supportsIdentity().
EclipseLink: added H2Platform.supportsIdentity().
@changelog_1245_li
@changelog_1247_li
Connection pool: the default login timeout is now 5 minutes.
Connection pool: the default login timeout is now 5 minutes.
@changelog_1246_li
@changelog_1248_li
After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
After truncating tables, opening large databases could become slow because indexes were always re-built unnecessarily when opening.
@changelog_1247_li
@changelog_1249_li
More bugs in the server-less multi-connection mode have been fixed: Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
More bugs in the server-less multi-connection mode have been fixed: Sometimes parameters of prepared statements were lost when a reconnecting. Concurrent read operations were slow. To improve performance, executeQuery(..) must be used for queries (execute(..) switches to the write mode, which is slow).
@changelog_1248_li
@changelog_1250_li
GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
GROUP BY queries with a self-join (join to the same table) that were grouped by columns with indexes returned the wrong result in some cases.
@changelog_1249_li
@changelog_1251_li
Improved error message when the .lock.db file modification time is in the future.
Improved error message when the .lock.db file modification time is in the future.
@changelog_1250_li
@changelog_1252_li
The MERGE statement now returns 0 as the generated key if the row was updated.
The MERGE statement now returns 0 as the generated key if the row was updated.
@changelog_1251_li
@changelog_1253_li
Running code coverage is now automated.
Running code coverage is now automated.
@changelog_1252_li
@changelog_1254_li
A file system implementation can now be registered using FileSystem.register.
A file system implementation can now be registered using FileSystem.register.
@changelog_1253_li
@changelog_1255_li
The database file system is no longer included in the jar file, it moved to the test section.
The database file system is no longer included in the jar file, it moved to the test section.
@changelog_1254_h2
@changelog_1256_h2
Version 1.1.111 (2009-04-10)
Version 1.1.111 (2009-04-10)
@changelog_1255_li
@changelog_1257_li
In-memory databases can now run inside the Google App Engine.
In-memory databases can now run inside the Google App Engine.
@changelog_1256_li
@changelog_1258_li
Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
Queries that are ordered by an indexed column returned no rows in certain cases (if all rows were deleted from the table previously, and there is a low number of rows in the table, and when not using other conditions, and when using the default b tree index).
@changelog_1257_li
@changelog_1259_li
The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
The wrong exception was thrown when using unquoted text for the SQL statements COMMENT, ALTER USER, and SET PASSWORD.
@changelog_1258_li
@changelog_1260_li
The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
The built-in connection pool did not roll back transactions and enable autocommit enabled after closing a connection.
@changelog_1259_li
@changelog_1261_li
Sometimes a StackOverflow occurred when checking for deadlock. See also http://code.google.com/p/h2database/issues/detail?id=61
Sometimes a StackOverflow occurred when checking for deadlock. See also http://code.google.com/p/h2database/issues/detail?id=61
@changelog_1260_li
@changelog_1262_li
The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
The Shell tool no longer truncates results with only one column, and displays a message if data was truncated.
@changelog_1261_h2
@changelog_1263_h2
Version 1.1.110 (2009-04-03)
Version 1.1.110 (2009-04-03)
@changelog_1262_li
@changelog_1264_li
Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch!
Support for not persistent in-memory tables in regular (persistent) databases using CREATE MEMORY TABLE(..) NOT PERSISTENT. Thanks a lot to Sergi Vladykin for the patch!
@changelog_1263_li
@changelog_1265_li
The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
The H2 Console trimmed the password (removed leading and trailing spaces). This is no longer the case, to support encrypted H2 database with an empty user password.
@changelog_1264_li
@changelog_1266_li
The data type of a SUBSTRING method was wrong.
The data type of a SUBSTRING method was wrong.
@changelog_1265_li
@changelog_1267_li
ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
ResultSet.findColumn and get methods with column label parameters now also check for matching column names (like most databases except MySQL).
@changelog_1266_li
@changelog_1268_li
H2 Console: the browser system property now supports a list of arguments. Example: java -Dh2.browser="open,-a,Safari,%url" ...
H2 Console: the browser system property now supports a list of arguments. Example: java -Dh2.browser="open,-a,Safari,%url" ...
@changelog_1267_li
@changelog_1269_li
Improved Javadoc navigation (similar to Scaladoc).
Improved Javadoc navigation (similar to Scaladoc).
@changelog_1268_li
@changelog_1270_li
H2 Console: auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
H2 Console: auto-complete of identifiers did not work correctly for H2 databases in MySQL mode.
@changelog_1269_li
@changelog_1271_li
DISTINCT and GROUP BY on a CLOB column was broken.
DISTINCT and GROUP BY on a CLOB column was broken.
@changelog_1270_li
@changelog_1272_li
The FTP server moved to the tools section and is no longer included in the h2*.jar file.
The FTP server moved to the tools section and is no longer included in the h2*.jar file.
@changelog_1271_li
@changelog_1273_li
Improved error message for unsupported features: now the message says what exactly is not supported.
Improved error message for unsupported features: now the message says what exactly is not supported.
@changelog_1272_li
@changelog_1274_li
Improved OSGi support.
Improved OSGi support.
@changelog_1273_li
@changelog_1275_li
Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
Some internal caches did not use the LRU mechanism. Fixed (LOB file list, optimizer cost cache, trace system, view indexes, collection keys, compressed in-memory file system).
@changelog_1274_li
@changelog_1276_li
The API of the tools changed a bit (each tool now returns an exit code).
The API of the tools changed a bit (each tool now returns an exit code).
@changelog_1275_li
@changelog_1277_li
Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
Command line help of the tools now match the javadocs. The build converts the javadocs to a resource that is read by the tool at runtime. This should not have an effect on using the database, but it reduces duplicate and out-of-sync documentation.
@changelog_1276_li
@changelog_1278_li
CREATE TABLE: improved compatibility (support for UNIQUE NOT NULL).
CREATE TABLE: improved compatibility (support for UNIQUE NOT NULL).
@changelog_1277_li
@changelog_1279_li
DatabaseMetaData.getSQLKeywords now returns the correct list.
DatabaseMetaData.getSQLKeywords now returns the correct list.
@changelog_1278_li
@changelog_1280_li
Deterministic user defined functions did not work when the parameter was a column. Fixed.
Deterministic user defined functions did not work when the parameter was a column. Fixed.
@changelog_1279_li
@changelog_1281_li
JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
JdbcConnectionPool.setLoginTimeout with 0 now uses the default timeout.
@changelog_1280_li
@changelog_1282_li
Creating a JdbcConnectionPool has been simplified a bit.
Creating a JdbcConnectionPool has been simplified a bit.
@changelog_1281_li
@changelog_1283_li
The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
The built-in connection pool did not re-use connections. Getting a connection using the built-in JdbcConnectionPool is now about 70 times faster than opening connections using DriverManager.getConnection.
@changelog_1282_li
@changelog_1284_li
More bugs in the server-less multi-connection mode have been fixed: If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
More bugs in the server-less multi-connection mode have been fixed: If a process terminated while writing, other open connections were blocked. If two processes were writing to the database, sometimes the database was corrupt after closing.
@changelog_1283_li
@changelog_1285_li
Linked tables to SQLite database can now be created.
Linked tables to SQLite database can now be created.
@changelog_1284_li
@changelog_1286_li
Nested IN(IN(...)) didn't work.
Nested IN(IN(...)) didn't work.
@changelog_1285_li
@changelog_1287_li
NIO storage: the nio: prefix was using memory mapped files instead of FileChannel.
NIO storage: the nio: prefix was using memory mapped files instead of FileChannel.
@changelog_1286_h2
@changelog_1288_h2
Version 1.1.109 (2009-03-14)
Version 1.1.109 (2009-03-14)
@changelog_1287_li
@changelog_1289_li
The optimization for IN(...) is now only used if comparing a column with an index.
The optimization for IN(...) is now only used if comparing a column with an index.
@changelog_1288_li
@changelog_1290_li
User defined functions can now be deterministic (see CREATE ALIAS documentation).
User defined functions can now be deterministic (see CREATE ALIAS documentation).
@changelog_1289_li
@changelog_1291_li
Multiple nested queries in the FROM clause with parameters did not always work.
Multiple nested queries in the FROM clause with parameters did not always work.
@changelog_1290_li
@changelog_1292_li
When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
When converting CLOB to BINARY, each character resulted in one byte. Now, the text is parsed as a hex as when converting VARCHAR.
@changelog_1291_li
@changelog_1293_li
New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio: or nioMapped: as in jdbc:h2:nio:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch!
New experimental NIO storage mechanism with both FileChannel and memory mapped files. To use it, use the file name prefix nio: or nioMapped: as in jdbc:h2:nio:~/test. So far it looks like NIO storage is faster on Mac OS but slower on some Windows systems. Thanks a lot to Jan Kotek for the patch!
@changelog_1292_li
@changelog_1294_li
The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
The functions BITOR, BITAND, BITXOR, and MOD now accept and return BIGINT instead of INT.
@changelog_1293_li
@changelog_1295_li
Could not use the same linked table multiple times in the same query.
Could not use the same linked table multiple times in the same query.
@changelog_1294_li
@changelog_1296_li
Bugs in the server-less multi-connection mode have been fixed.
Bugs in the server-less multi-connection mode have been fixed.
@changelog_1295_li
@changelog_1297_li
Column names could not be named "UNIQUE" (with the quotes).
Column names could not be named "UNIQUE" (with the quotes).
@changelog_1296_li
@changelog_1298_li
New system function TRANSACTION_ID() to get the current transaction identifier for a session.
New system function TRANSACTION_ID() to get the current transaction identifier for a session.
@changelog_1297_h2
@changelog_1299_h2
Version 1.1.108 (2009-02-28)
Version 1.1.108 (2009-02-28)
@changelog_1298_li
@changelog_1300_li
When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
When the shutdown hook closed the database, the last log file was deleted too early. This could cause uncommitted changes to be persisted. In some cases, this could cause data corruption.
@changelog_1299_li
@changelog_1301_li
JdbcConnectionPool: it was possible to set a negative connection pool size.
JdbcConnectionPool: it was possible to set a negative connection pool size.
@changelog_1300_li
@changelog_1302_li
Fulltext search did not support table names with a backslash.
Fulltext search did not support table names with a backslash.
@changelog_1301_li
@changelog_1303_li
The internal IntArray class did not work correctly when initialized with a zero length array.
The internal IntArray class did not work correctly when initialized with a zero length array.
@changelog_1302_li
@changelog_1304_li
The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
The H2 Console web application (war file) did only support ASCII characters. Now UTF-8 is supported.
@changelog_1303_li
@changelog_1305_li
DATEADD does no longer require that the argument is a timestamp.
DATEADD does no longer require that the argument is a timestamp.
@changelog_1304_li
@changelog_1306_li
The database file locking mechanism didn't work correctly on Mac OS.
The database file locking mechanism didn't work correctly on Mac OS.
@changelog_1305_li
@changelog_1307_li
Some built-in functions reported the wrong precision, scale, and display size.
Some built-in functions reported the wrong precision, scale, and display size.
@changelog_1306_li
@changelog_1308_li
MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
MySQL compatibility for CREATE TABLE is improved (UNSIGNED, KEY).
@changelog_1307_li
@changelog_1309_li
Recovery did not work if there were more than 255 lobs stored as files.
Recovery did not work if there were more than 255 lobs stored as files.
@changelog_1308_li
@changelog_1310_li
New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK=SERIALIZED;OPEN_NEW=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
New experimental mode to support multiple read-write connections without starting a server. To enable this mode, append ;FILE_LOCK=SERIALIZED;OPEN_NEW=TRUE to the database URL. Don't expect high performance when multiple concurrent writers.
@changelog_1309_li
@changelog_1311_li
In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
In a web application, the database classes are not unloaded if a connection is open. This may cause out of memory when re-deploying a web application. The DbStarter is changed to close all connections to the configured database (by executing SHUTDOWN).
@changelog_1310_li
@changelog_1312_li
The WebServlet did not close the database when un-deploying the web application.
The WebServlet did not close the database when un-deploying the web application.
@changelog_1311_li
@changelog_1313_li
The exception message of failed INSERT or MERGE statements now includes all values and the row number.
The exception message of failed INSERT or MERGE statements now includes all values and the row number.
@changelog_1312_li
@changelog_1314_li
If opening a database failed with an out of memory exception, some files were not closed.
If opening a database failed with an out of memory exception, some files were not closed.
@changelog_1313_li
@changelog_1315_li
Optimizer: the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
Optimizer: the expected runtime calculation was incorrect. The fixed calculation should give slightly better query plans when using many joins.
@changelog_1314_li
@changelog_1316_li
Improved exception message when connecting to a just started server fails.
Improved exception message when connecting to a just started server fails.
@changelog_1315_li
@changelog_1317_li
Connection.isValid is a bit faster.
Connection.isValid is a bit faster.
@changelog_1316_li
@changelog_1318_li
H2 Console: the autocomplete feature has been improved a bit. It can now better parse conditions.
H2 Console: the autocomplete feature has been improved a bit. It can now better parse conditions.
@changelog_1317_li
@changelog_1319_li
When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ: Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
When restarting a web application in Tomcat, an exception was thrown sometimes. In most cases this was a NullPointerException. A workaround in H2 has been implemented. The root cause of the problem is now documented in the FAQ: Tomcat sets all static fields (final or non-final) to null when unloading a web application. A workaround is to put the h2.jar in the lib directory, or set the system property org.apache.catalina.loader.WebappClassLoader.ENABLE_CLEAR_REFERENCES to false.
@changelog_1318_h2
@changelog_1320_h2
Version 1.1.107 (2009-01-24)
Version 1.1.107 (2009-01-24)
@changelog_1319_li
@changelog_1321_li
Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
Some DatabaseMetaData operations did not work for non-admin users for versions 1.1.x.
@changelog_1320_li
@changelog_1322_li
The MySQL compatibility extension fromUnixTime now used the English locale.
The MySQL compatibility extension fromUnixTime now used the English locale.
@changelog_1321_li
@changelog_1323_li
When using LOG=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
When using LOG=2 and repeatedly updating the last row rows of a table, the index file grew quickly.
@changelog_1322_li
@changelog_1324_li
In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE=TEXT) but support for this format was removed in version 1.1.105.
In versions 1.1.105 and 1.1.106, encrypted script files of earlier versions could not be processed. This is now again possible. The problem was that such script files were stored in a special format (STORAGE=TEXT) but support for this format was removed in version 1.1.105.
@changelog_1323_li
@changelog_1325_li
Enabling the trace mechanism by creating a specially named file is no longer supported.
Enabling the trace mechanism by creating a specially named file is no longer supported.
@changelog_1324_h2
@changelog_1326_h2
Version 1.1.106 (2009-01-04)
Version 1.1.106 (2009-01-04)
@changelog_1325_li
@changelog_1327_li
Statement.setQueryTimeout did not work correctly for some statements.
Statement.setQueryTimeout did not work correctly for some statements.
@changelog_1326_li
@changelog_1328_li
CREATE DOMAIN: built-in data types can now only be changed if no tables exist.
CREATE DOMAIN: built-in data types can now only be changed if no tables exist.
@changelog_1327_li
@changelog_1329_li
Linked tables: a workaround for Oracle DATE columns has been implemented.
Linked tables: a workaround for Oracle DATE columns has been implemented.
@changelog_1328_li
@changelog_1330_li
DatabaseMetaData.getPrimaryKeys: the column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
DatabaseMetaData.getPrimaryKeys: the column PK_NAME now contains the constraint name instead of the index name (compatibility for PostgreSQL and Derby).
@changelog_1329_li
@changelog_1331_li
Using IN(..) inside a IN(SELECT..) did not always work.
Using IN(..) inside a IN(SELECT..) did not always work.
@changelog_1330_li
@changelog_1332_li
Views with IN(..) that used a view itself did not work.
Views with IN(..) that used a view itself did not work.
@changelog_1331_li
@changelog_1333_li
Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
Union queries with LIMIT or ORDER BY that are used in a view or subquery did not work.
@changelog_1332_li
@changelog_1334_li
The license change a bit: so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
The license change a bit: so far the license was modified to say 'Swiss law'. This is now changed back to the original 'US law'. This was requested by a user, and I don't see a problem.
@changelog_1333_li
@changelog_1335_li
Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem!
Constraints for local temporary tables now session scoped. So far they were global. Thanks a lot to Eric Faulhaber for finding and fixing this problem!
@changelog_1334_li
When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database: lock file modified in the future').
@changelog_1335_h2
Version 1.1.105 (2008-12-19)
@changelog_1336_li
@changelog_1336_li
The setting STORAGE=TEXT is no longer supported.
When using the auto-server mode, and if the lock file was modified in the future, the wrong exception was thrown ('Connection is broken' instead of 'Error opening database: lock file modified in the future').
@changelog_1337_li
Deleting a database using the tool DeleteDbFiles deleted LOB files of other databases in the same directory.
@changelog_1338_li
When used in a subquery, LIKE and IN(..) did not work correctly sometimes.
@changelog_1339_li
The fulltext search documentation has been improved.
@changelog_1340_li
ARRAY_GET returned the wrong data type (ARRAY). Now it returns VARCHAR.
@changelog_1341_li
Natural join: the joined columns are not repeated any more when using SELECT *.
@changelog_1342_li
User defined aggregate functions: the method getType expected internal data types instead of SQL types.
@changelog_1343_li
User defined aggregate functions did not work if there was no group by expression.
@changelog_1344_li
MySQL compatibility: support for := assignment as in @sum:=@sum+x
@changelog_1345_li
INSERT INTO TEST(SELECT * FROM TEST) is now supported.
@changelog_1346_li
Each session threw an invisible exception when garbage collected.
@changelog_1347_li
Foreign key constraints that refer to a quoted column did not work.
@changelog_1348_li
New meta data column INFORMATION_SCHEMA.TABLES.LAST_MODIFICATION to get the table modification counter.
@changelog_1349_li
Shell: line comments didn't work correctly.
@changelog_1350_li
H2 Console: columns are now listed for up to 500 tables instead of 100.
@changelog_1351_li
H2 Console: Cmd+Enter executes the current statement, Alt+Space for autocomplete.
@changelog_1352_li
JaQu: the maximum length of a column can now be defined using maxLength. For an example, see Product.java (maxLength(category, 255)).
@changelog_1353_li
Rıdvan Ağar has completed the Turkish translation of the H2 Console. Thanks a lot!
To start the <a href="quickstart.html#h2_console">H2 Console tool</a>, double click the jar file, or run <code>java -jar h2*.jar</code>, <code>h2.bat</code>, or <code>h2.sh</code>.
To start the <a href="quickstart.html#h2_console">H2 Console tool</a>, double click the jar file, or run <code>java -jar h2*.jar</code>, <code>h2.bat</code>, or <code>h2.sh</code>.
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@@ -2597,7 +2546,7 @@ database.H2Platform
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@@ -2597,7 +2546,7 @@ database.H2Platform
Downloads
Downloads
@download_1001_h3
@download_1001_h3
Version 1.2.126 (2009-12-18, Beta)
Version 1.2.127 (2010-01-15, Beta)
@download_1002_a
@download_1002_a
Windows Installer
Windows Installer
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@@ -6479,7 +6428,7 @@ Small footprint: around 1 MB jar file size
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@@ -6479,7 +6428,7 @@ Small footprint: around 1 MB jar file size
