Change Log

Next Version (unreleased)

Issue #1750: JOIN t ON t.col IN (SELECT ...) throws AssertionError

Version 1.4.198 (2019-02-22)

Issue #1746: Infinite loop in TestConcurrent.testConcurrentChangeAndGetVersion()
Issue #1739: Table and view names not case sensitive when using DATABASE_TO_UPPER=FALSE
Issue #848: H2 PostgreSQL Compatibility Mode: lowercase metadata
Issue #485: Problem is in invalid case for schema's IGNORECASE=true;DATABASE_TO_UPPER=false
Issue #1742, PR #1743: Assorted small changes
PR #1738: Reduce memory allocation in getSQL() methods
PR #1737: more javadoc updates
Issue #1735: Creating views with DATABASE_TO_UPPER=FALSE fails
Issue #1732: source.html does not work
Issue #1730: Show error in H2 Console if specified driver is not compatible with URL
Issue #1590: Error on executing "DELETE FROM table1 WHERE ID = ?; DELETE FROM table2 WHERE ID = ?;"
Issue #1727: Support ISODOW as identifier for the extract function additional to ISO_DAY_OF_WEEK
PR #1580, #1726: Disable remote database creation by default
PR #1725: Add partial implementation of standard LISTAGG aggregate function
PR #1722: Fix window definition lookup in some queries
PR #1721: Fix derived column list in complex queries
Issue #1718: Window function and values clause don't work well together
Issue #1592: Index out of bounds exception in Page.getKey()
PR #1716: Improve documentation of some DML commands
Issue #1715: Postgres mode: Domain "regproc" already exists
PR #1714: Assorted changes
PR #1713: Remove DataType.defaultDisplaySize and fix display size in TypeInfo
PR #1711: Add QUALIFY clause to SELECT command
Issue #1708: CREATE TABLE AS doesn't support column lists without data types
PR #1707: Fix sort order and ENUM data type in external results
PR #1706: Add hypothetical set functions
PR #1705: Fix GROUP_CONCAT with variable separator
PR #1704: Fix return type of PERCENTILE_CONT and MEDIAN
PR #1701: Add PERCENTILE_CONT and PERCENTILE_DISC inverse distribution functions
Issues #1297, #1697: Failure on concurrent session closure
Issue #1297: removeOldTempIndexes on PageStore causes NullPointerException
Issue #1354: TestCrashAPI: another NPE
PR #1695: Reduce memory for TestMVTempResult to 64m
Issue #1691: Append mode causes OOME in MVPlainTempResult
PR #1692: Use MVTempResult unconditionally
Issue #1689: Use separate constants for data types in Data, ValueDataType, and Transfer
PR #1687: MVMap minor cleanup
PR #1686: Fix a regression with ENUM data type
PR #1685: Fix CHAR in PostgreSQL mode and refactor some code
Issue #1681: IN () doesn't work with row values when data types are not exactly the same
Issue #1320: OOME / GC overhead in IndexCursor.nextCursor()
PR #1680: Assorted fixes for ALTER TABLE ALTER COLUMN
PR #1679: Use TestScript for testSimple
Issue #1677: Unable to use VALUES keyword in WHERE clause
Issue #1672: Deadlock on MVStore close in TestOutOfMemory
Issue #1665: TestCrashAPI: NPE with ENUM in MINUS operator
Issue #1602: Combine type, precision, scale, display size and extTypeInfo into one object
PR #1671: Assorted changes
Issue #1668: MySQL compatibility DATE() function should return NULL on error
Issue #1604: TestCrashAPI: PreparedStatement.getGeneratedKeys() is already closed
PR #1667: Detect NULL values and overflow in window frame bounds
PR #1664: Allow any expressions in window frames
Issue #1576: H2 Console should not display precision and scale for data types that don't have them
PR #1662: Fix Alter Table Drop Column In View when table name is wrapped by Double Quotes
PR #1660: Optimize window aggregates with AND UNBOUNDED FOLLOWING and no exclusions
PR #1658: Assorted small changes
PR #1657: Failure to stop background thread
PR #1656: Optimize window aggregates with ORDER BY + UNBOUNDED PRECEDING + no exclusions
Issue #1654: OOM in TestMemoryUsage, in big mode
Issue #1651: TIMESTAMP values near DST may be changed in MVStore database due to UTC-based PageStore format in some temporary storages
PR #1650: Fix race in MVStore.close()
Issue #1212: TestDiskFull: The file is locked
PR #1648: Add functions ARRAY_CAT(), ARRAY_APPEND() and ARRAY_SLICE()
PR #1646: In preparation to a release
PR #1643: more javadoc update
PR #1642: update javadoc
PR #1641: Update copyright years
PR #1640: Suggest ANY(?) instead of variable IN() again
PR #1638: Add support for Java 11 to test suite
PR #1637: Remove explicit unboxing
PR #1635: Optimize UUID to VARCHAR conversion and use correct time check in Engine.openSession()
Issue #1632: TestMVTableEngine failure
PR #1631: Prepare to release: javadoc cleanup
PR #1630: fix duplicate words typos in comments and javadoc
PR #1627: Use lock to protect append buffer
Issue #1618: GROUP BY does not work with two identical columns in selected expressions
Issue #1619: Two-phase commit regression in MASTER
PR #1626: fix doc
PR #1625: Prepare to release: javadoc cleanup, fix maven build, fix javadoc build
Issue #1620: UUIDs are unexpectedly sorted as signed
PR #1614: Use bulk .addAll() operation
PR #1613: Add explicit table query
Issue #1608: ARRAY and row value expression should not be the same
Issue #1606: Quantified comparison predicate doesn't work correctly on primary key column
Issue #1057: Very slow execution with subquery and connection parameter LAZY_QUERY_EXECUTION=1
Issue #1072: Very slow execution with join and connection parameter LAZY_QUERY_EXECUTION=1
PR #1601: Return BIGINT from ROWNUM(), ROW_NUMBER() and rank functions
PR #1599: cleanup StringUtils.cache
PR #1598: Minor changes in parser and documentation
PR #1597: Remove SysProperties.CHECK preconditions around simple assertions
PR #1596: Improve SQL Standard compliance in LOB precision parsing
Issue #1594: DBSettings.optimizeIsNull and dead code in IndexCursor.getMax()
PR #1591: Use multi-catch java 7 language construction to simplify code
Issue #1582: h2 not using best index for >=
PR #1588: Add support for java.time.Period
Issue #446: FILE_READ from classpath not working because of 0 byte file length
PR #1579: fix unintentional append mode disruption
Issue #1573: DELETE FROM w/ ROWNUM and subquery
Issue #187: SHUTDOWN DEFRAG corrupts splitted file database
PR #1571: Optimizing ConditionAndOr queries
Issue #1565: SOME / ANY conflict
PR #1564: Refactor Expression implementations
Issue #1561: Incorrect documentation and strange fallback value of SysProperties.FILE_ENCODING
Issue #1566: MVStore implements Closeable/AutoCloseable
Issue #1550: OutOfMemoryError during "shutdown defrag"
Issue #1440: OOM when executing "shutdown compact" in server mode
Issue #1561: Incorrect documentation and strange fallback value of SysProperties.FILE_ENCODING
PR #1557: increase lock timeout to TestConcurrentUpdate due to Travis failures
Issue #1554: REGEXP_REPLACE - accept 'g' flag in PostgreSQL compatibility mode
Issue #950: Comparison between databases in README.md and in features.html
Issue #1549: [RFE] Implement locking modes (select for update)
PR #1548: Add AsynchronousFileChannel-based experimental FilePathAsync
PR #1547: Speedup unused chunks collection
PR #1546: Tiny optimization: use `System.arraycopy` when possible
PR #1545: Export datetime value functions to SQL using standard syntax
Issue #1371: NPE in CacheLRU
Issue #1534: Typo in message
Issue #1527: Parser performance: Excessive use of regular expressions to validate column names
PR #1543: MVStore assorted re-factorings
PR #1538: Add support for newer Lucene versions without recompilation
Issue #1536: CURRENT_TIMESTAMP result doesn't change under Transactions
Issue #239: Consider supporting Lucene 5 indexes
PR #1520: Fixes bug in PutIfAbsentDecisionMaker
Issue #1518: ENUM and VIEW with filtering on enum column
Issue #1516: Array element reference array[index] should be 1-based
Issue #1512: TestMVTableEngine.testLowRetentionTime(): NPE in VersionedValue.Type
PR #1513: Assorted minor changes
PR #1510: Add optional EXCEPT clause to wildcards
PR #1509: Use domain term everywhere
Issue #1507: Add INFORMATION_SCHEMA.COLUMNS.COLUMN_TYPE qualification for domains
Issue #1499: TestScript::envelope.sql failure in “big” mode
Issue #1498: NPE in SimpleResultSet.getColumnCount()
Issue #1495: MERGE statement doesn't affect any rows when Oracle UPDATE .. WHERE .. DELETE .. WHERE is used
Issue #1493: MERGE statement fails when it updates more than one row
Issue #1492: Unnecessary restriction on MERGE USING statement when ON clause doesn't reference any target table columns
Issue #1491: Unnecessary restriction on MERGE USING statement when ON predicate doesn't match inserted row
Issue #1490: NullPointerException when running invalid MERGE statement
Issue #1489: MERGE USING documentation has misleading railroad diagram
Issue #1488: Improve documentation of window and some other functions
Issue #1485: Default window frame in presence of ORDER BY is RANGE .., not ROWS
PR #1484: New tests, reimplemented EXCLUDE clause, and assorted changes
Issue #1338: MSSQLServer compatibility enhancements
PR #1480: Update Maven build instruction and fix some problems
PR #1478: Upgrade maven-surefire-plugin
PR #1476: Add TransactionStore to MVStore jar
Issue #1475: Dropping column used by a view produces misleading error message
Issue #1473: TestScript needs better detection of sorted result
PR #1471: issue 1350: TestCrashAPI: PageStore.freeListPagesPerList
PR #1470: Fix window functions in queries with HAVING
PR #1469: Forbid incorrect nesting of aggregates and window functions
Issue #1437: Generated as Identity has a different behaviour.
PR #1467: Fix subtraction of timestamps
PR #1464: Assorted minor changes in window processing code
PR #1463: Fix some window aggregates and reduce amount of collecting implementations
PR #1462: Separate aggregate and window code in some places
PR #1461: Add WINDOW clause support
Issue #1427: Scalability problem in MVSpatialIndex
PR #1459: Improve window clause correctness checks
PR #1457: Add NTILE(), LEAD() and LAG() window functions
PR #1456: Add experimental implementation of remaining types of window frames
PR #1454: Add FIRST_VALUE(), LAST_VALUE(), and NTH_VALUE()
PR #1453, Issue #1161: Add ROW_NUMBER(), RANK(), DENSE_RANK(), PERCENT_RANK(), and CUME_DIST() window functions
PR #1452: Reset aggregates before reuse
PR #1451: Add experimental support for aggregates with OVER (ORDER BY *)
PR #1450: Evaluate window aggregates only once for each partition
PR #1449: Move more code from Aggregate and JavaAggregate to AbstractAggregate
PR #1448: Add experimental implementation of grouped window queries
PR #1447: Refactor OVER() processing code and fix some issues
PR #1446: fix : The French messages are bad generated (not contain DB message)
PR #1445: Use PostGIS-compatible format for SRID-only constraint in GEOMETRY
PR #1444: Add experimental unoptimized support for OVER ([PARTITION BY ...]) in aggregates
PR #1442: Bugfix - Release MVStore lock and file resources rightly even if errors when compacting database
PR #1441: Add GEOMETRY type subtypes with type and SRID constraints
PR #1434: Add support for ENUM in CAST and other changes
PR #1431: Fix some inconsistencies in documentation and improve mvn build
PR #1428: Add support for M and ZM dimensions to GEOMETRY data type
Issue #1405: Introduce LocalResult factory
PR #1422: Add ENVELOPE aggregate function
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.