Change Log

Next Version (unreleased)

Issue #1421: Remove old-style outer join
PR #1419: Assorted minor changes
PR #1414: DEFRAG and COMPACT mixup
PR #1413: improvements to MVStore garbage collection
PR #1412: Added org.h2.store.fs package to exported osgi bundles
PR #1409: Map all remaining error codes to custom exception classes
Issue #1407: Add a MODE() aggregate function
PR #1402: Duplicate conditions in column check constraint
PR #1399: Add more subclasses of SQLException and use it for some error codes
PR #1397: Add DATEADD return type detection
Issue #1393: Add INFORMATION_SCHEMA.COLUMNS.IS_VISIBLE
PR #1392: Some refactoring and assorted minor optimizations
PR #1388: Extract UnaryOperation from Operation and other changes
PR #1386: DISK_SPACE_USED() for MVStore and other minor changes
PR #1385: split up the rather large convertTo method
PR #1384: Throw exception if unknown mode is specified in database URL
Issue #1365, PR #1382: Parse more date-time literals for compatibility with other databases
PR #1381: Minor fixes for INTERVAL data type
PR #1380: Improve documentation of intervals
Issue #1189: "Merge into using" parameters aren't found
Issue #1377: org.h2.api.Interval and TIME leftovers
PR #1376: TestMultiThreadedKernel is back
PR #1373: INTERVAL data type
Issue #1369: In MSSQL Server Mode generated UUID fields need NEWID() function
Issue #756: FunctionsMySql is not in the main jar
PR #1368: Parse BINARY VARYING, BINARY LARGE OBJECT, and CHARACTER LARGE OBJECT
PR #1367: Assorted changes with SELECT output limitation clauses
Issue #1363: Why H2 requires random own packages in OSGi bundle description?
Issue #1192: Add an Automatic-Module-Name
Issue #1361, PR #1362: Add limited support for MONEY and SMALLMONEY in compatibility modes
Issue #1327: mvn build misses some resources
PR #1359: Add system property to return OffsetDateTime from ResultSet.getObject()
PR #1357: Simplify execution flow in some places
PR #1356: Fix NPE in Query.initExpression()
PR #1355: Assorted changes in MetaTable
Issue #1352: TestCrashAPI: Prepared.getObjectId() was called before
PR #1349: Changes is conversion and comparison methods of Value
Issue #1346: Exception when using IN condition for enums
PR #1345: Replace some init methods with constructors
PR #1344: Streamline last chunk verification on startup
PR #1341: Optimize MVSecondaryIndex.convertToKey()
PR #1340: NoSuchElementException instead of returning null
PR #1339: Add support of TIMESTAMP WITH TIME ZONE to addition and subtraction operators
PR #1337: Streamline Value comparison
PR #1336: Minor refactorings
Issue #1332: Constraint name not set correctly
Rename fields to reflect actual type
Issue #1331: Regression in Database.updateMeta()
Issue #1323: Slow update after altering table in 1.4.197
PR #1326: Add support of PERCENT in FETCH and TOP clauses
PR #1325: Optimize WITH TIES in some queries and specify data types for KEY_COLUMN_USAGE
PR #1321: Do not add rows before OFFSET to result if possible
PR #1319: Treat NEXTVAL as an auto-generated key
PR #1318: Mode append fo MVPlainTempResult
PR #1314: Add ALTER VIEW RENAME command
PR #1313, issue #1315: Bugfix - using default locale encoding issue in conversion between varchar and varbinary value, and checking javac output text issue in SourceCompiler
PR #1312: Add Java 9+ support to NIO_CLEANER_HACK
PR #1311: Fix minor issues with ResultSet.getObject(..., Class) and WITH TIES
Issue #1298: TestKillRestartMulti: A map named undoLog.2 already exists
Issue #1307: Invalid value "null" for parameter "calendar" [90008-193]
PR #1306: Add initial implementation of WITH TIES clause
PR #1304: Update changelog and fix building of documentation
PR #1302: Use OpenJDK instead of OracleJDK 10 in Travis builds due to Travis problem
Issue #1032: Error when executing "SELECT DISTINCT ON"
Issue #1295: ConditionInSelect violates requirements of LocalResult
PR #1296: Assorted minor changes
PR #1293: Move HELP and SHOW tests into own files
PR #1291: Fix update count for REPLACE and move some SQL tests into separate files
PR #1290: Do not load the whole LOBs into memory for comparison operation
Issue #408: DISTINCT does not properly work with ORDER BY on function like LOWER
PR #1286: Fix MVTempResult implementations for results with invisible columns
Issue #1284: Nanoseconds of timestamps from old H2 versions are not read properly
PR #1283: Clean up interaction between LocalResult and ResultExternal
Issue #1265: OOME is not handled properly in TraceObject.logAndConvert()
Issue #1061: Regression: Braces after WITH clause not allowed anymore
PR #1277: Assorted changes in Parser
PR #1276: Improve support of ARRAY and SQLXML in JDBC layer
PR #1275: Do not quote other lower case characters
PR #1274: Use token type in Parser instead of string comparisons
PR #1272: Reduce code duplication in Parser
PR #1271: Minor memory leak
PR #1270: drop TableView isPersistent field
PR #1269: Eliminate commit of empty batch in some tests
Issue #1266: Add INFORMATION_SCHEMA.COLUMNS.DATETIME_PRECISION
Issue #1261: How to discover stored enum types through INFORMATION_SCHEMA
Issue #1258: Failing to remove index when using schema.table
PR #1256: misc tiny refactorings
PR #1255: Minor changes in MERGE USING, DATE_TRUNC, and EXTRACT
Issue #1214: Internal compiler believes that "3 warnings" is an error
PR #1252: Assorted minor changes
PR #1251: Fix SQL representation of CAST for types with fractional seconds precision
PR #1250: Batch append mode for MVMap
PR #1248: StringIndexOutOfBoundsException due to undoLog map
PR #1246: Detect disabled tests
PR #1242: Add implementation of SQLXML interface
PR #1241: Various tweaks in attempting to fix TestDiskFull test
PR #1240: Optimise ValueLobDB comparison methods
PR #1239: Don't try to find tools.jar on Java 9+
PR #1238: remove unfinished android API
PR #1237: remove JaQu
PR #1236: remove STORE_LOCAL_TIME code
PR #1235: Do not use deprecated Class.newInstance()
PR #1234: Fix NPE in Parser.parseMergeUsing()
PR #1233: Simplify old lob ValueLob class
Issue 1227: lob growth in pagestore mode
PR #1230: clean up some javadoc and some throws clauses
PR #1229: Create UndoLog only when necessary and remove outdated code
PR #1228: Remove some PageStore+MVCC leftovers
PR #1226: Fix inconsistencies in checks for transaction isolation level
PR #1224: Enable Java 10 testing on Travis
PR #1223: Fix issues with testing on latest Java versions
PR #1222: Leftovers handling
Issue #1220: JDK-9 build fails due to usage of java.xml.bind in external authentication
PR #1218: Test utilities only once during TestAll
PR #1217: Postpone session.endStatement() until after commit
PR #1213: KillRestart fix
PR #1211: Assorted minor changes
Issue #1204: Always use MVCC with MVStore and never use it with PageStore
PR #1206: Forbid reconnects in non-regular modes in TestScript
PR #1205: Misc test fixes
Issue 1198: Enable MULTI_THREADED by default for MVStore mode
Issue #1195: Calling setBytes to set VARCHAR field fails
PR #1197: Fix or suppress errors in tests
PR #1194: TestKillRestartMulti: A map named undoLog-1 already exists
PR #1193: enable TestRandomSQL on non-memory databases
PR #1191: External authentication with datasource issue
PR #1188: Undo log split to reduce contention
PR #1186: TransactionMap::sizeAsLong() optimized - temp map eliminated
PR #1185: Improve naming of the object id field in Prepared
Issue #1196: Feature request for MS SQL Server Compatibility Mode
Issue #1177: Resource leak in Recover tool
PR #1183: Improve concurrency of connection pool with wait-free implement
Issue #1073: H2 v1.4.197 fails to open an existing database with the error [Unique index or primary key violation: "PRIMARY KEY ON """".PAGE_INDEX"]
PR #1179: Drop TransactionMap.readLogId
PR #1181: Improve CURRENT_TIMESTAMP and add LOCALTIME and LOCALTIMESTAMP
PR #1176: Magic value replacement with constant
PR #1171: Introduce last committed value into a VersionedValue
PR #1175: tighten test conditions - do not ignore any exceptions
PR #1174: Remove mapid
PR #1173: protect first background exception encountered and relate it to clients
PR #1172: Yet another attempt to tighten that testing loop
PR #1170: Add support of CONTINUE | RESTART IDENTITY to TRUNCATE TABLE
Issue #1168: ARRAY_CONTAINS() returning incorrect results when inside subquery with Long elements.
PR #1167: MVStore: Undo log synchronization removal
PR #1166: Add SRID support to EWKT format
PR #1165: Optimize isTargetRowFound() and buildColumnListFromOnCondition() in MergeUsing
PR #1164: More fixes for parsing of MERGE USING and other changes in Parser
PR #1154: Support for external authentication
PR #1162: Reduce allocation of temporary strings
PR #1158: make fields final
Issue #1129: TestCrashAPI / TestFuzzOptimizations throw OOME on Travis in PageStore mode
PR #1156: Add support for SQL:2003 WITH [NO] DATA to CREATE TABLE AS
PR #1149: fix deadlock between OnExitDatabaseCloser.DATABASES and Engine.DATABASES
PR #1152: skip intermediate DbException object when creating SQLException
PR #1144: Add missing schema name with recursive view
Issue #1091: get rid of the "New" class
PR #1147: Assorted minor optimizations
PR #1145: Reduce code duplication
PR #1142: Misc small fixes
PR #1141: Assorted optimizations and fixes
PR #1138, #1139: Fix a memory leak caused by DatabaseCloser objects
PR #1137: Step toward making transaction commit atomic
PR #1136: Assorted minor optimizations
PR #1134: Detect possible overflow in integer division and optimize some code
PR #1133: Implement Comparable<Value> in CompareMode and optimize ValueHashMap.keys()
PR #1132: Reduce allocation of ExpressionVisitor instances
PR #1130: Improve TestScript and TestCrashAPI
PR #1128: Fix ON DUPLICATE KEY UPDATE with ENUM
PR #1127: Update JdbcDatabaseMetaData.getSQLKeywords() and perform some minor optimizations
PR #1126: Fix an issue with code coverage and building of documentation
PR #1123: Fix TCP version check
PR #1122: Assorted changes
PR #1121: Add some protection to ValueHashMap against hashes with the same less significant bits
Issue #1097: H2 10x slower than HSQLDB and 6x than Apache Derby for specific query with GROUP BY and DISTINCT subquery
Issue #1093: Use temporary files for ResultSet buffer tables in MVStore
PR #1117: Fix sorting with distinct in ResultTempTable
Issue #1095: Add support for INSERT IGNORE INTO <table> (<columns>) SELECT in MySQL Mode
PR #1114: Minor cleanup and formatting fixes
PR #1112: Improve test scripts
PR #1111: Use a better fix for issue with SRID
Issue #1107: Restore support of DATETIME2 with specified fractional seconds precision
Issue #1106: Get rid of SwitchSource
PR #1105: Assorted minor changes
Issue #1102: CREATE SYNONYM rejects valid definition
PR #1103: Remove redundant synchronization
Issue #1048: 1.4.197 regression. org.h2.jdbc.JdbcSQLException: Timeout trying to lock table "SYS"
PR #1101: Move some tests in better place and add an additional test for 2PC
PR #1100: Fix Insert.prepareUpdateCondition() for PageStore
PR #1098: Fix some issues with NULLS FIRST / LAST
Issue #1089: Parser does not quote words INTERSECTS, DUAL, TOP
Issue #230: Renaming a column does not update foreign key constraint
Issue #1091 Get rid if the New class
PR #1087: improve performance of planning large queries
PR #1085: Add tests for simple one-column index sorting
PR #1084: re-enable some pagestore testing
PR #1083: Assorted changes
Issue #394: Recover tool places COLLATION and BINARY_COLLATION after temporary tables
PR #1081: Session.getTransactionId should return a more distinguishing value
Improve the script-based unit testing to check the error code of the exception thrown.
Issue #1041: Support OR syntax while creating trigger
Issue #1023: MVCC and existing page store file
Issue #1003: Decrypting database with incorrect password renders the database corrupt
Issue #873: No error when `=` in equal condition when column is not of array type
Issue #1069: Failed to add DATETIME(3) column since 1.4.197
Issue #456: H2 table privileges referring to old schema after schema rename
Issue #1062: Concurrent update in table "SYS" caused by Analyze.analyzeTable()
Yet another fix to Page memory accounting
Replace MVStore.ASSERT variable with assertions
Issue #1063: Leftover comments about enhanced for loops
PR #1059: Assorted minor changes
PR #1058: Txcommit atomic
Issue #1038: ora_hash function implementation off by one
PR #1054: Introduce overflow bit in tx state
Issue #1047: Support DISTINCT in custom aggregate functions
PR #1051: Atomic change of transaction state
PR #1046: Split off Transaction TransactionMap VersionedValue
PR #1045: TransactionStore move into separate org.h2.mvstore.tx package
PR #1044: Encapsulate TransactionStore.store field in preparation to a move
PR #1040: generate less garbage for String substring+trim
PR #1035: Minor free space accounting changes
Issue #1034: MERGE USING should not require the same column count in tables
PR #1033: Fix issues with BUILTIN_ALIAS_OVERRIDE=1
PR #1031: Drop schema rights together with schema
PR #1029: No need to remove orphaned LOBs when the db is read-only
Issue #1027: Add support for fully qualified names in MySQL compatibility mode
Issue #178: INSERT ON DUPLICATE KEY UPDATE returns wrong generated key
PR #1025: Remove BitField and replace its usages with BitSet
Issue #1019: Console incorrectly sorts BigDecimal columns alphanumerically
PR #1021: Update JdbcDatabaseMetaData to JDBC 4.1 (Java 7)
Issue #992: 1.4.197 client cannot use DatabaseMetaData with 1.4.196 and older server
Issue #1016: ResultSet.getObject() should return enum value, not ordinal
Issue #1012: NPE when querying INFORMATION_SCHEMA.COLUMNS on a view that references an ENUM column
Issue #1010: MERGE USING table not found with qualified table
PR #1009: Fix ARRAY_AGG with ORDER BY and refactor aggregates
Issue #1006: "Empty enums are not allowed" in 1.4.197 (mode=MYSQL)
PR #1007: Copy also SRID in ValueGeometry.getGeometry()
PR #1004: Preserve type names in more places especially for UUID
Issue #1000: Regression in INFORMATION_SCHEMA.CONSTRAINTS.CONSTRAINT_TYPE content
Issue #997: Can not delete from tables with enums
Issue #994: Too much column in result set for GENERATED_KEYS on table with DEFAULT
PR #993: Fix some compiler warnings and improve assert*() methods
PR #991: Generate shorter queries in JdbcDatabaseMetaData.getTables() and remove some dead code
PR #989: Fix more issues with range table and improve its documentation

Version 1.4.197 (2018-03-18)

PR #988: Fix RangeTable.getRowCount() for non-default step
PR #987: ValueBoolean constants are not cleared and may be used directly
PR #986: Check parameters in JdbcPreparedStatement.addBatch()
PR #984: Minor refactorings in Parser
PR #983: Code cleanups via IntelliJ IDEA inspections
Issue #960: Implement remaining time unit in "date_trunc" function
Issue #933: MVStore background writer endless loop
PR #981: Reorganize date-time functions
PR #980: Add Parser.toString() method for improved debugging experience
PR #979: Remove support of TCP protocol versions 6 and 7
PR #977: Add database versions to javadoc of TCP protocol versions and update dictionary.txt
PR #976: Add and use incrementDateValue() and decrementDateValue()
Issue #974: Inline PRIMARY KEY definition loses its name
PR #972: Add META-INF/versions to all non-Android jars that use Bits
PR #971: Update ASM from 6.1-beta to 6.1
PR #970: Added support for ENUM in prepared statement where clause
PR #968: Assorted changes
PR #967: Adds ARRAY_AGG function
PR #966: Do not include help and images in client jar
PR #965: Do not include mvstore.DataUtils in client jar and other changes
PR #964: Fix TestFunctions.testToCharFromDateTime()
PR #963 / Issue #962: Improve documentation of compatibility modes and fix ssl URL description
Issue #219: H2 mode MySQL- ON UPDATE CURRENT_TIMESTAMP not supported
PR #958: More fixes for PgServer
PR #957: Update database size information and links in README.md
PR #956: Move tests added in 821117f1db120a265647a063dca13ab5bee98efc to a proper place
PR #955: Support getObject(?, Class) in generated keys
PR #954: Avoid incorrect reads in iterators of TransactionMap
PR #952: Optimize arguments for MVMap.init()
PR #949: Fix table borders in PDF and other changes
PR #948: Fix some grammar descriptions and ALTER TABLE DROP COLUMN parsing
PR #947: Fix building of documentation and use modern names of Java versions
PR #943: Assorted changes in documentation and a fix for current-time.sql
PR #942: Fix page numbers in TOC in PDF and move System Tables into own HTML / section in PDF
PR #941: Use >> syntax in median.sql and move out more tests from testScript.sql
PR #940: add Support for MySQL: DROP INDEX index_name ON tbl_name
PR #939: Short syntax for SQL tests
Issue #935: The "date_trunc" function is not recognized for 'day'
PR #936: Fix font size, line length, TOC, and many broken links in PDF
PR #931: Assorted changes in documentation
PR #930: Use Math.log10() and remove Mode.getOracle()
PR #929: Remove Mode.supportOffsetFetch
PR #928: Show information about office configuration instead of fallback PDF generation mode
PR #926: Describe datetime fields in documentation
PR #925: Fix time overflow in DATEADD
Issue #416: Add support for DROP SCHEMA x { RESTRICT | CASCADE }
PR #922: Parse and treat fractional seconds precision as described in SQL standard
Issue #919: Add support for mixing adding constraints and columns in multi-add ALTER TABLE statement
PR #916: Implement TABLE_CONSTRAINTS and REFERENTIAL_CONSTRAINTS from the SQL standard
PR #915: Implement INFORMATION_SCHEMA.KEY_COLUMN_USAGE from SQL standard
PR #914: don't allow null values in ConcurrentArrayList
PR #913: Assorted changes in tests and documentation
Issue #755: Missing FLOAT(precision)?
PR #911: Add support for MySQL-style ALTER TABLE ADD ... FIRST
Issue #409: Support derived column list syntax on table alias
PR #908: remove dead code
PR #907: Nest joins only if required and fix some issues with complex joins
PR #906: Fix obscure error on non-standard SELECT * FROM A LEFT JOIN B NATURAL JOIN C
PR #805: Move some JOIN tests from testScript.sql to own file
PR #804: Remove unused parameters from readJoin() and readTableFilter()
Issue #322: CSVREAD WHERE clause containing ORs duplicates number of rows
PR #902: Remove DbSettings.nestedJoins
PR #900: Convert duplicate anonymous classes in TableFilter to nested for reuse
PR #899: Fix ON DUPLICATE KEY UPDATE for inserts with multiple rows
PR #898: Parse TIME WITHOUT TIME ZONE and fix TIMESTAMP as column name
PR #897: Update JTS to version 1.15.0 from LocationTech
PR #896: Assorted changes in help.csv
PR #895: Parse more variants of timestamps with time zones
PR #893: TIMESTAMP WITHOUT TIME ZONE, TIMEZONE_HOUR, and TIMEZONE_MINUTE
PR #892: Assorted minor changes in Parser
PR #891: Update documentation of date-time types and clean up related code a bit
PR #890: Implement conversions for TIMESTAMP WITH TIME ZONE
PR #888: Fix two-phase commit in MVStore
Issue #884: Wrong test Resources path in pom.xml
PR #886: Fix building of documentation
PR #883: Add support for TIMESTAMP WITH TIME ZONE to FORMATDATETIME
PR #881: Reimplement dateValueFromDate() and nanosFromDate() without a Calendar
PR #880: Assorted date-time related changes
PR #879: Reimplement TO_DATE without a Calendar and fix a lot of bugs an incompatibilities
PR #878: Fix IYYY in TO_CHAR and reimplement TRUNCATE without a Calendar
PR #877: Reimplement TO_CHAR without a Calendar and fix 12 AM / 12 PM in it
PR #876: Test out of memory
PR #875: Improve date-time related parts of documentation
PR #872: Assorted date-time related changes
PR #871: Fix OOME in Transfer.readValue() with large CLOB V2
PR #867: TestOutOfMemory stability
Issue #834: Add support for the SQL standard FILTER clause on aggregate functions
PR #864: Minor changes in DateUtils and Function
PR #863: Polish: use isEmpty() to check whether the collection is empty or not.
PR #862: Convert constraint type into enum
PR #861: Avoid resource leak
PR #860: IndexCursor inList
PR #858 / Issue #690 and others: Return all generated rows and columns from getGeneratedKeys()
Make the JDBC client independent of the database engine
PR #857: Do not write each SQL error multiple times in TestScript
PR #856: Fix TestDateTimeUtils.testDayOfWeek() and example with ANY(?
PR #855: Reimplement DATEADD without a Calendar and fix some incompatibilities
PR #854: Improve test stability
PR #851: Reimplement DATEDIFF without a Calendar
Issue #502: SQL "= ANY (?)" supported?
PR #849: Encode date and time in fast and proper way in PgServerThread
PR #847: Reimplement remaining parts of EXTRACT, ISO_YEAR, etc without a Calendar
PR #846: Read known fields directly in DateTimeUtils.getDatePart()
Issue #832: Extract EPOCH from a timestamp
PR #844: Add simple implementations of isWrapperFor() and unwrap() to JdbcDataSource
PR #843: Add MEDIAN to help.csv and fix building of documentation
PR #841: Support indexes with nulls last for MEDIAN aggregate
PR #840: Add MEDIAN aggregate
PR #839: TestTools should not leave testing thread in interrupted state
PR #838: (tests) Excessive calls to Runtime.getRuntime().gc() cause OOM for no reason
Don't use substring when doing StringBuffer#append
PR #837: Use StringUtils.replaceAll() in Function.replace()
PR #836: Allow to read invalid February 29 dates with LocalDate as March 1
PR #835: Inline getTimeTry() into DateTimeUtils.getMillis()
PR #827: Use dateValueFromDate() and nanosFromDate() in parseTimestamp()
Issue #115: to_char fails with pattern FM0D099
PR #825: Merge code for parsing and formatting timestamp values
Enums for ConstraintActionType, UnionType, and OpType
PR 824: Add partial support for INSERT IGNORE in MySQL mode
PR #823: Use ValueByte.getInt() and ValueShort.getInt() in convertTo()
PR #820: Fix some compiler warnings
PR #818: Fixes for remaining issues with boolean parameters
Use enum for file lock method
PR #817: Parse also 1 as true and 0 as false in Utils.parseBoolean()
PR #815: Fix count of completed statements
PR #814: Method.isVarArgs() is available on all supported platforms
Issue #812: TIME values should be in range 0:00:00.000000000 23:59:59.999999999?
PR #811: Issues with Boolean.parseBoolean()
PR #809: Use type constants from LocalDateTimeUtils directly
PR #808: Use HmacSHA256 provided by JRE
PR #807: Use SHA-256 provided by JRE / Android and use rotateLeft / Right in Fog
PR #806: Implement setBytes() and setString() with offset and len
PR #805: Improve support of TIMESTAMP WITH TIME ZONE
PR #803: Use new ArrayList(Collection) and assertThrows()
PR #802: Use Arrays.copyOf() and Arrays.copyOfRange()
PR #801: Fix NULL support in PgServer for primitive types too
PR #800: More fixes in date-time types for ODBC drivers
PR #798: Add partial support of DATE, TIME, and TIMESTAMP data types to PgServer
PR #799: Use result of ArrayList.remove()
PR #797: Add ceilingKey() and floorKey() to TransactionMap (version 2)
PR #796: Add MDY to DateStyle in PgServerThread
PR #794: Sort files in generated jars
PR #793: Change return type of Value.getBoolean() to boolean (unwrapped)
PR #792: Inherit classpath from parent process
PR #791: Switch to JaCoCo code coverage
PR #788: Update lists of keywords
PR #789: Map DATE in Oracle mode to ValueTimestamp
PR #787: Assorted changes
PR #785: Optimize NULL handling in MVSecondaryIndex.add()
PR #783: Add Bits implementation for Java 9 and later versions
PR #784: Hardcoded port numbers should not be used in unit tests
PR #780: Close JavaFileManager after use.
PR #782: Leftover shared lock after release
PR #781: Locks left behind after commit
PR #778: Reduce code duplication
PR #775: Fix building of documentation and zip
PR #774: Assorted changes
PR #773: Better checks for arguments of partial LOB reading methods
PR #772: getBinaryStream() and getCharacterStream() with pos and length
Issue #754: Make NUMERIC type read as NUMERIC
PR #768: Add DataUtils.parseChecksummedMap()
PR #769: Do not copy result of DataUtils.parseMap() to a new maps
PR #766: Minor clean up of DateTimeUtils
PR #764: Make use of try-with-resources statement
Issue #406: Return from ResultSet.getObject not in line with JDBC specification
Issue #710: Misleading exception message when INSERT has no value for self referential 'AS' column
PR #763: Add DataUtils.getMapName()
PR #762: Add row deletion confirmation to web console
PR #760: Assorted minor optimizations
PR #759: Improve the look of error messages in web console
PR #758: Allocate less amount of garbage
PR #757: Fix handling of UUID in Datatype.readValue()
PR #753: Optimize StringUtils.trim() and remove StringUtils.equals()
PR #752: Use predefined charsets instead of names where possible
PR #750: Use AtomicIntegerArray and StandardCharsets
PR #749: Fix some build checks in sources
Issue #740: TestWeb hangups if webSSL=true specified in configuration
Issue #736: Copyright years in sources
Issue #744: TestFile failure on Java 9 and Java 10
PR #741: More cleanups in LocalDateTimeUtils and other minor changes
PR #743: Change REGEXP_REPLACE mode for MariaDB and PostgreSQL
Issue#646 NPE in CREATE VIEW WITH RECURSIVE & NON_RECURSIVE CTE
PR #738: Copy javadoc to *BackwardsCompat to fix building of documentation
PR #735: Add support of java.time.Instant V2
PR #733: Remove JPA/ORM configuration txt files as they're already integrated
PR #732: Fix ==
PR #730: Implement enquoteIdentifier() and isSimpleIdentifier() from JDBC 4.3
PR #729: Grammar documentation change
PR #727: Integer/Long.compare(x, y) can be used to compare primitive values
PR #726: Fixes in tests
Issue #725: FilePathMem.tryLock() fails since Java 9
PR #723: Clean up LocalDateTimeUtils
PR #724: Use StringBuilder instead of StringBuffer
PR #720: DROP TABLE RESTRICT shouldn't drop foreign keys in other tables
PR #722: Assorted minor changes
Issue #638: Oracle mode: incompatible regexp back-reference syntax
Make ALL a reserved keyword
Issue #311: Avoid calling list.toArray(new X[list.size()]) for performance
PR #715: Better getObject error message
PR #714: SecureRandom is already synchronized
PR #712: Return properly encoded UUID from SimpleResultSet.getBytes()
PR #711: TestFunctions less english dependent
Issue #644: Year changing from negative -509 to a positive 510.
PR #706: SIGNAL function
PR #704: added Javascript support for Triggers' source
Issue #694: Oracle syntax for adding NOT NULL constraint not supported.
Issue #699: When using an index for sorting, the index is ignored when also using NULLS LAST/FIRST
Issue #697: FilePathDisk.newInputStream fails for contextual class loading
Issue #695: jdbc:postgresql protocol connection issue in H2 Console Application in case of redshift driver in classpath
Fix 'file not closed' when using FILE_READ
Fix bug in LinkSchema tool when object exists with same name in different schemas
Issue #675: Fix date operations on Locales with non-Gregorian calendars
Fix removal of LOB when rolling back transaction on a table containing more than one LOB column.
Issue #654: List ENUM type values in INFORMATION_SCHEMA.COLUMNS
Issue #650: Simple nested SELECT causes error for table with TIMESTAMP WITH TIMEZONE column
Issue #654: List ENUM type values in INFORMATION_SCHEMA.COLUMNS
Issue #668: Fail of an update command on large table with ENUM column
Issue #662: column called CONSTRAINT is not properly escaped when storing to metadata
Issue #660: Outdated java version mentioned on http://h2database.com/html/build.html#providing_patches
Issue #643: H2 doesn't use index when I use IN and EQUAL in one query
Reset transaction start timestamp on ROLLBACK
Issue #632: CREATE OR REPLACE VIEW creates incorrect columns names
Issue #630: Integer overflow in CacheLRU can cause unrestricted cache growth
Issue #497: Fix TO_DATE in cases of 'inline' text. E.g. the "T" and "Z" in to_date('2017-04-21T00:00:00Z', 'YYYY-MM-DD"T"HH24:MI:SS"Z"')
Fix bug in MySQL/ORACLE-syntax silently corrupting the modified column in cases of setting the 'NULL'- or 'NOT NULL'-constraint. E.g. alter table T modify C NULL;
Issue #570: MySQL compatibility for ALTER TABLE .. DROP INDEX
Issue #537: Include the COLUMN name in message "Numeric value out of range"
Issue #600: ROW_NUMBER() behaviour change in H2 1.4.195
Fix a bunch of race conditions found by vmlens.com, thank you to vmlens for giving us a license.
PR #597: Support more types in getObject
Issue #591: Generated SQL from WITH-CTEs does not include a table identifier
PR #593: Make it possible to create a cluster without using temporary files.
PR #592: "Connection is broken: "unexpected status 16777216" [90067-192]" message when using older h2 releases as client
Issue #585: MySQL mode DELETE statements compatibility
PR #586: remove extra tx preparation
PR #568: Implement MetaData.getColumns() for synonyms.
Issue #581: org.h2.tools.RunScript assumes -script parameter is part of protocol
Fix a deadlock in the TransactionStore
PR #579: Disallow BLOB type in PostgreSQL mode
Issue #576: Common Table Expression (CTE): WITH supports INSERT, UPDATE, MERGE, DELETE, CREATE TABLE ...
Issue #493: Query with distinct/limit/offset subquery returns unexpected rows
Issue #575: Support for full text search in multithreaded mode
Issue #569: ClassCastException when filtering on ENUM value in WHERE clause
Issue #539: Allow override of builtin functions/aliases
Issue #535: Allow explicit paths on Windows without drive letter
Issue #549: Removed UNION ALL requirements for CTE
Issue #548: Table synonym support
Issue #531: Rollback and delayed meta save.
Issue #515: "Unique index or primary key violation" in TestMvccMultiThreaded
Issue #458: TIMESTAMPDIFF() test failing. Handling of timestamp literals.
PR #546: Fixes the missing file tree.js in the web console
Issue #543: Prepare statement with regexp will not refresh parameter after metadata change
PR #536: Support TIMESTAMP_WITH_TIMEZONE 2014 JDBC type
Fix bug in parsing ANALYZE TABLE xxx SAMPLE_SIZE yyy
Add padding for CHAR(N) values in PostgreSQL mode
Issue #89: Add DB2 timestamp format compatibility

Version 1.4.196 (2017-06-10)

Issue#479 Allow non-recursive CTEs (WITH statements), patch from stumc
Fix startup issue when using "CHECK" as a column name.
Issue #423: ANALYZE performed multiple times on one table during execution of the same statement.
Issue #426: Support ANALYZE TABLE statement
Issue #438: Fix slow logging via SLF4J (TRACE_LEVEL_FILE=4).
Issue #472: Support CREATE SEQUENCE ... ORDER as a NOOP for Oracle compatibility
Issue #479: Allow non-recursive Common Table Expressions (CTE)
On Mac OS X, with IPv6 and no network connection, the Console tool was not working as expected.

Version 1.4.195 (2017-04-23)

Lazy query execution support.
Added API for handling custom data types (System property "h2.customDataTypesHandler", API org.h2.api.CustomDataTypesHandler).
Added support for invisible columns.
Added an ENUM data type, with syntax similar to that of MySQL.
MVStore: for object data types, the cache size memory estimation was sometimes far off in a read-only scenario. This could result in inefficient cache usage.

Version 1.4.194 (2017-03-10)

Issue #453: MVStore setCacheSize() should also limit the cacheChunkRef.
Issue #448: Newly added TO_DATE and TO_TIMESTAMP functions have wrong datatype.
The "nioMemLZF" filesystem now supports an extra option "nioMemLZF:12:" to tweak the size of the compress later cache.
Various multi-threading fixes and optimisations to the "nioMemLZF" filesystem.
[API CHANGE] #439: the JDBC type of TIMESTAMP WITH TIME ZONE changed from Types.OTHER (1111) to Types.TIMESTAMP_WITH_TIMEZONE (2014)
#430: Subquery not cached if number of rows exceeds MAX_MEMORY_ROWS.
#411: "TIMEZONE" should be "TIME ZONE" in type "TIMESTAMP WITH TIMEZONE".
PR #418, Implement Connection#createArrayOf and PreparedStatement#setArray.
PR #427, Add MySQL compatibility functions UNIX_TIMESTAMP, FROM_UNIXTIME and DATE.
#429: Tables not found : Fix some Turkish locale bugs around uppercasing.
Fixed bug in metadata locking, obscure combination of DDL and SELECT SEQUENCE.NEXTVAL required.
Added index hints: SELECT * FROM TEST USE INDEX (idx1, idx2).
Add a test case to ensure that spatial index is used with and order by command by Fortin N.
Fix multi-threaded mode update exception "NullPointerException", test case by Anatolii K.
Fix multi-threaded mode insert exception "Unique index or primary key violation", test case by Anatolii K.
Implement ILIKE operator for case-insensitive matching.
Optimise LIKE queries for the common cases of '%Foo' and '%Foo%'.
Issue #387: H2 MSSQL Compatibility Mode - Support uniqueidentifier.
Issue #401: NPE in "SELECT DISTINCT * ORDER BY".
Added BITGET function.
Fixed bug in FilePathRetryOnInterrupt that caused infinite loop.
PR #389, Handle LocalTime with nanosecond resolution, patch by katzyn.
PR #382, Recover for "page store" H2 breaks LOBs consistency, patch by vitalus.
PR #393, Run tests on Travis, patch by marschall.
Fix bug in REGEX_REPLACE, not parsing the mode parameter.
ResultSet.getObject(..., Class) threw a ClassNotFoundException if the JTS suite was not in the classpath.
File systems: the "cache:" file system, and the compressed in-memory file systems memLZF and nioMemLZF did not correctly support concurrent reading and writing.
TIMESTAMP WITH TIMEZONE: serialization for the PageStore was broken.

Version 1.4.193 (2016-10-31)

PR #386: Add JSR-310 Support (introduces JTS dependency fixed in 1.4.194)
WARNING: THE MERGE BELOW WILL AFFECT ANY 'TIMESTAMP WITH TIMEZONE' INDEXES. You will need to drop and recreate any such indexes.
PR #364: fix compare TIMESTAMP WITH TIMEZONE
Fix bug in picking the right index for INSERT..ON DUPLICATE KEY UPDATE when there are both UNIQUE and PRIMARY KEY constraints.
Issue #380: Error Analyzer doesn't show source code
Remove the "TIMESTAMP UTC" datatype, an experiment that was never finished.
PR #363: Added support to define last IDENTIFIER on a Trigger.
PR #366: Tests for timestamps
PR #361: Improve TimestampWithTimeZone javadoc
PR #360: Change getters in TimestampWithTimeZone to int
PR #359: Added missing source encoding. Assuming UTF-8.
PR #353: Add support for converting JAVA_OBJECT to UUID
PR #358: Add support for getObject(int|String, Class)
PR #357: Server: use xdg-open to open the WebConsole in the user's preferred browser on Linux
PR #356: Support for BEFORE and AFTER clauses when using multiple columns in ALTER TABLE ADD
PR #351: Respect format codes from Bind message when sending results
ignore summary line when compiling stored procedure
PR #348: pg: send RowDescription in response to Describe (statement variant), patch by kostya-sh
PR #337: Update russian translation, patch by avp1983
PR #329: Update to servlet API version 3.1.0 from 3.0.1, patch by Mat Booth
PR #331: ChangeFileEncryption progress logging ignores -quiet flag, patch by Stefan Bodewig
PR #325: Make Row an interface
PR #323: Regular expression functions (REGEXP_REPLACE, REGEXP_LIKE) enhancement, patch by Akkuzin
Use System.nanoTime for measuring query statistics
Issue #324: Deadlock when sending BLOBs over TCP
Fix for creating and accessing views in MULTITHREADED mode, test-case courtesy of Daniel Rosenbaum
Issue #266: Spatial index not updating, fixed by merging PR #267
PR #302: add support for "with"-subqueries into "join" & "sub-query" statements
Issue #299: Nested derived tables did not always work as expected.
Use interfaces to replace the java version templating, idea from Lukas Eder.
Issue #295: JdbcResultSet.getObject(int, Class) returns null instead of throwing.
Mac OS X: Console tool process did not stop on exit.
MVStoreTool: add "repair" feature.
Garbage collection of unused chunks should be faster still.
MVStore / transaction store: opening a store in read-only mode does no longer loop.
MVStore: disabled the file system cache by default, because it limits concurrency when using larger databases and many threads. To re-enable, use the file name prefix "cache:".
MVStore: add feature to set the cache concurrency.
File system nioMemFS: support concurrent reads.
File systems: the compressed in-memory file systems now compress better.
LIRS cache: improved hit rate because now added entries get hot if they were in the non-resident part of the cache before.

Version 1.4.192 Beta (2016-05-26)

Java 6 is no longer supported (the jar files are compiled for Java 7).
Garbage collection of unused chunks should now be faster.
Prevent people using unsupported combination of auto-increment columns and clustering mode.
Support for DB2 time format, patch by Niklas Mehner
Added support for Connection.setClientInfo() in compatibility modes for DB2, Postgresql, Oracle and MySQL.
Issue #249: Clarify license declaration in Maven POM xml
Fix NullPointerException in querying spatial data through a sub-select.
Fix bug where a lock on the SYS table was not released when closing a session that contained a temp table with an LOB column.
Issue #255: ConcurrentModificationException with multiple threads in embedded mode and temporary LOBs
Issue #235: Anonymous SSL connections fail in many situations
Fix race condition in FILE_LOCK=SOCKET, which could result in the watchdog thread not running
Experimental support for datatype TIMESTAMP WITH TIMEZONE
Add support for ALTER TABLE ... RENAME CONSTRAINT .. TO ...
Add support for PostgreSQL ALTER TABLE ... RENAME COLUMN .. TO ...
Add support for ALTER SCHEMA [ IF EXISTS ]
Add support for ALTER TABLE [ IF EXISTS ]
Add support for ALTER VIEW [ IF EXISTS ]
Add support for ALTER INDEX [ IF EXISTS ]
Add support for ALTER SEQUENCE [ IF EXISTS ]
Improve performance of cleaning up temp tables - patch from Eric Faulhaber.
Fix bug where table locks were not dropped when the connection closed
Fix extra CPU usage caused by query planner enhancement in 1.4.191
improve performance of queries that use LIKE 'foo%' - 10x in the case of one of my queries
The function IFNULL did not always return the result in the right data type.
Issue #231: Possible infinite loop when initializing the ObjectDataType class when concurrently writing into MVStore.

Version 1.4.191 Beta (2016-01-21)

TO_DATE and TO_TIMESTAMP functions. Thanks a lot to Sam Blume for the patch!
Issue #229: DATEDIFF does not work for 'WEEK'.
Issue #156: Add support for getGeneratedKeys() when executing commands via PreparedStatement#executeBatch.
Issue #195: The new Maven uses a .cmd file instead of a .bat file.
Issue #212: EXPLAIN PLAN for UPDATE statement did not display LIMIT expression.
Support OFFSET without LIMIT in SELECT.
Improve error message for METHOD_NOT_FOUND_1/90087.
CLOB and BLOB objects of removed rows were sometimes kept in the database file.
Server mode: executing "shutdown" left a thread on the server.
The condition "in(select...)" did not work correctly in some cases if the subquery had an "order by".
Issue #184: The Platform-independent zip had Windows line endings in Linux scripts.
Issue #186: The "script" command did not include sequences of temporary tables.
Issue #115: to_char fails with pattern FM0D099.

Version 1.4.190 Beta (2015-10-11)

Pull request #183: optimizer hints (so far without special SQL syntax).
Issue #180: In MVCC mode, executing UPDATE and SELECT ... FOR UPDATE simultaneously silently can drop rows.
PageStore storage: the cooperative file locking mechanism did not always work as expected (with very slow computers).
Temporary CLOB and BLOB objects are now removed while the database is open (and not just when closing the database).
MVStore CLOB and BLOB larger than about 25 MB: An exception could be thrown when using the MVStore storage.
Add FILE_WRITE function. Patch provided by Nicolas Fortin (Lab-STICC - CNRS UMR 6285 and Ecole Centrale de Nantes)