CHANGELOG.md · kimmking/openGauss-connector-jdbc

# Changelog
Notable changes since version 42.0.0, read the complete [History of Changes](https://jdbc.postgresql.org/documentation/changelog.html).

The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).

## [Unreleased]
### Changed

### Added

### Fixed

## [42.2.5] (2018-08-27)
### Changed
- `ssl=true` implies `sslmode=verify-full`, that is it requires valid server certificate [cdeeaca4](https://github.com/pgjdbc/pgjdbc/commit/cdeeaca47dc3bc6f727c79a582c9e4123099526e)

### Added
- Support for `sslmode=allow/prefer/require` [cdeeaca4](https://github.com/pgjdbc/pgjdbc/commit/cdeeaca47dc3bc6f727c79a582c9e4123099526e)

### Fixed
- Security: added server hostname verification for non-default SSL factories in `sslmode=verify-full` (CVE-2018-10936) [cdeeaca4](https://github.com/pgjdbc/pgjdbc/commit/cdeeaca47dc3bc6f727c79a582c9e4123099526e)
- Updated documentation on SSL configuration [fa032732](https://github.com/pgjdbc/pgjdbc/commit/fa032732acfe51c6e663ee646dd5c1beaa1af857)
- Updated Japanese translations [PR 1275](https://github.com/pgjdbc/pgjdbc/pull/1275)
- IndexOutOfBounds on prepared multistatement with insert values [c2885dd0](https://github.com/pgjdbc/pgjdbc/commit/c2885dd0cfc793f81e5dd3ed2300bb32476eb14a)

## [42.2.4] (2018-07-14)
### Changed
- PreparedStatement.setNull(int parameterIndex, int t, String typeName) no longer ignores the typeName
argument if it is not null [PR 1160](https://github.com/pgjdbc/pgjdbc/pull/1160)

### Fixed
- Fix treatment of SQL_TSI_YEAR, SQL_TSI_WEEK, SQL_TSI_MINUTE [PR 1250](https://github.com/pgjdbc/pgjdbc/pull/1250)
- Map integrity constraint violation to XA_RBINTEGRITY instead of XAER_RMFAIL [PR 1175](https://github.com/pgjdbc/pgjdbc/pull/1175) [f2d1352c](https://github.com/pgjdbc/pgjdbc/commit/f2d1352c2b3ea98492beb6127cd6d95039a0b92f)

## [42.2.3] (2018-07-12)
### Known issues
- SQL_TSI_YEAR is treated as hour, SQL_TSI_WEEK is treated as hour, SQL_TSI_MINUTE is treated as second

### Changed
- Reduce the severity of the error log messages when an exception is re-thrown. The error will be 
thrown to caller to be dealt with so no need to log at this verbosity by pgjdbc  [PR 1187](https://github.com/pgjdbc/pgjdbc/pull/1187)
- Deprecate Fastpath API [PR 903](https://github.com/pgjdbc/pgjdbc/pull/903)
- Support parenthesis in {oj ...} JDBC escape syntax [PR 1204](https://github.com/pgjdbc/pgjdbc/pull/1204)
- ubenchmark module moved pgjdbc/benchmarks repository due to licensing issues [PR 1215](https://github.com/pgjdbc/pgjdbc/pull/1215)
- Include section on how to submit a bug report in CONTRIBUTING.md [PR 951](https://github.com/pgjdbc/pgjdbc/pull/951)

### Fixed
- getString for PGObject-based types returned "null" string instead of null [PR 1154](https://github.com/pgjdbc/pgjdbc/pull/1154)
- Field metadata cache can be disabled via databaseMetadataCacheFields=0 [PR 1052](https://github.com/pgjdbc/pgjdbc/pull/1152)
- Properly encode special symbols in passwords in BaseDataSource [PR 1201](https://github.com/pgjdbc/pgjdbc/pull/1201)
- Adjust date, hour, minute, second when rounding nanosecond part of a timestamp [PR 1212](https://github.com/pgjdbc/pgjdbc/pull/1212)
- perf: reduce memory allocations in query cache [PR 1227](https://github.com/pgjdbc/pgjdbc/pull/1227)
- perf: reduce memory allocations in SQL parser [PR 1230](https://github.com/pgjdbc/pgjdbc/pull/1230), [PR 1233](https://github.com/pgjdbc/pgjdbc/pull/1233)
- Encode URL parameters in BaseDataSource [PR 1201](https://github.com/pgjdbc/pgjdbc/pull/1201)
- Improve JavaDoc formatting [PR 1236](https://github.com/pgjdbc/pgjdbc/pull/1236)

## [42.2.2] (2018-03-15)
### Added
- Documentation on server-side prepared statements [PR 1135](https://github.com/pgjdbc/pgjdbc/pull/1135)

### Fixed
- Avoid failure for `insert ... on conflict...update` for `reWriteBatchedInserts=true` case [PR 1130](https://github.com/pgjdbc/pgjdbc/pull/1130)
- fix: allowEncodingChanges should allow set client_encoding=... [PR 1125](https://github.com/pgjdbc/pgjdbc/pull/1125)
- Wrong data from Blob/Clob when mark/reset is used [PR 971](https://github.com/pgjdbc/pgjdbc/pull/971)
- Adjust XAException return codes for better compatibility with XA specification [PR 782](https://github.com/pgjdbc/pgjdbc/pull/782)
- Wrong results when single statement is used with different bind types[PR 1137](https://github.com/pgjdbc/pgjdbc/pull/1137)
- Support generated keys for WITH queries that miss RETURNING [PR 1138](https://github.com/pgjdbc/pgjdbc/pull/1138)
- Support generated keys when INSERT/UPDATE/DELETE keyword is followed by a comment [PR 1138](https://github.com/pgjdbc/pgjdbc/pull/1138)

## [42.2.1] (2018-01-25)
### Known issues
- client_encoding has to be UTF8 even with allowEncodingChanges=true

### Changed
- socksProxyHost is ignored in case it contains empty string [PR 1079](https://github.com/pgjdbc/pgjdbc/pull/1079)

### Fixed
- Avoid connection failure when `DateStyle` is set to `ISO` (~PgBouncer) [Issue 1080](https://github.com/pgjdbc/pgjdbc/issues/1080)
- Package scram:client classes, so SCRAM works when using a shaded jar [PR 1091](https://github.com/pgjdbc/pgjdbc/pull/1091) [1a89290e](https://github.com/pgjdbc/pgjdbc/commit/1a89290e110d5863b35e0a2ccf79e4292c1056f8)
- reWriteBatchedInserts=true causes syntax error with ON CONFLICT [Issue 1045](https://github.com/pgjdbc/pgjdbc/issues/1045) [PR 1082](https://github.com/pgjdbc/pgjdbc/pull/1082)
- Avoid failure in getPGArrayType when stringType=unspecified [PR 1036](https://github.com/pgjdbc/pgjdbc/pull/1036)
- For PostgreSQL 9.0+ return a complete list of keywords in DatabaseMetadata.getSQLKeywords() from pg_catalog.pg_get_keywords(). [PR 940](https://github.com/pgjdbc/pgjdbc/pull/940)

## [42.2.0] (2018-01-17)
### Known issues
- SCRAM does not work as scram:client library is not packaged
- client_encoding has to be UTF8 even with allowEncodingChanges=true

### Added
- Support SCRAM-SHA-256 for PostgreSQL 10 in the JDBC 4.2 version (Java 8+) using the Ongres SCRAM library. [PR 842](https://github.com/pgjdbc/pgjdbc/pull/842)
- Make SELECT INTO and CREATE TABLE AS return row counts to the client in their command tags. [Issue 958](https://github.com/pgjdbc/pgjdbc/issues/958) [PR 962](https://github.com/pgjdbc/pgjdbc/pull/962)
- Support Subject Alternative Names for SSL connections. [PR 952](https://github.com/pgjdbc/pgjdbc/pull/952)
- Support isAutoIncrement metadata for PostgreSQL 10 IDENTITY column. [PR 1004](https://github.com/pgjdbc/pgjdbc/pull/1004)
- Support for primitive arrays [PR#887](https://github.com/pgjdbc/pgjdbc/pull/887) [3e0491a](https://github.com/pgjdbc/pgjdbc/commit/3e0491ac3833800721b98e7437635cf6ab338162)
- Implement support for get/setNetworkTimeout() in connections. [PR 849](https://github.com/pgjdbc/pgjdbc/pull/849)
- Make GSS JAAS login optional, add an option "jaasLogin" [PR 922](https://github.com/pgjdbc/pgjdbc/pull/922) see [Connecting to the Database](https://jdbc.postgresql.org/documentation/head/connect.html)

### Changed
- Improve behaviour of ResultSet.getObject(int, Class). [PR 932](https://github.com/pgjdbc/pgjdbc/pull/932)
- Parse CommandComplete message using a regular expresion, allows complete catch of server returned commands for INSERT, UPDATE, DELETE, SELECT, FETCH, MOVE, COPY and future commands. [PR 962](https://github.com/pgjdbc/pgjdbc/pull/962)
- Use 'time with timezone' and 'timestamp with timezone' as is and ignore the user provided Calendars, 'time' and 'timestamp' work as earlier except "00:00:00" now maps to 1970-01-01 and "24:00:00" uses the system provided Calendar ignoring the user-provided one [PR 1053](https://github.com/pgjdbc/pgjdbc/pull/1053)
- Change behaviour of multihost connection. The new behaviour is to try all secondaries first before trying the master [PR 844](https://github.com/pgjdbc/pgjdbc/pull/844).
- Avoid reflective access to TimeZone.defaultTimeZone in Java 9+ [PR 1002](https://github.com/pgjdbc/pgjdbc/pull/1002) fixes [Issue 986](https://github.com/pgjdbc/pgjdbc/issues/986)

### Fixed
- Make warnings available as soon as they are received from the server. This is useful for long running queries, where it can be beneficial to know about a warning before the query completes. [PR 857](https://github.com/pgjdbc/pgjdbc/pull/857)
- Use 00:00:00 and 24:00:00 for LocalTime.MIN/MAX. [PR 992](https://github.com/pgjdbc/pgjdbc/pull/992)
- Now the DatabaseMetaData.getFunctions() implementation complies with the JDBC docs. [PR 918](https://github.com/pgjdbc/pgjdbc/pull/918)
- Execute autosave/rollback savepoint via simple queries always to prevent "statement S_xx not exists" when autosaving fixes [Issue #955](https://github.com/pgjdbc/pgjdbc/issues/955)
- Received resultset tuples, but no field structure for them" when bind failure happens on 5th execution of a statement [Issue 811](https://github.com/pgjdbc/pgjdbc/issues/811)

### Removed
- Drop support for the (insecure) crypt authentication method. [PR 1026](https://github.com/pgjdbc/pgjdbc/pull/1026)

### Deprecated
- Reintroduce Driver.getVersion for backward compatibility reasons, mark it as deprecated as application should not rely on it (regression since 42.0.0) [50d5dd3e](https://github.com/pgjdbc/pgjdbc/commit/50d5dd3e708a92602e04d6b4aa0822ad3f110a78)

## [42.1.4] (2017-08-01)
### Changed
- Statements with non-zero fetchSize no longer require server-side named handle. This might cause issues when using old PostgreSQL versions (pre-8.4)+fetchSize+interleaved ResultSet processing combo. [Issue 869](https://github.com/pgjdbc/pgjdbc/issues/869)

## [42.1.3] (2017-07-14)
### Fixed
- Fix NPE in PreparedStatement.executeBatch in case of empty batch (regression since 42.1.2). [PR 867](https://github.com/pgjdbc/pgjdbc/pull/867)

## [42.1.2] (2017-07-12)
### Changed
- Better logic for *returning* keyword detection. Previously, pgjdbc could be defeated by column names that contain *returning*, so pgjdbc failed to "return generated keys" as it considered statement as already having *returning* keyword [PR 824](https://github.com/pgjdbc/pgjdbc/pull/824) [201daf1d](https://github.com/pgjdbc/pgjdbc/commit/201daf1dc916bbc35e2bbec961aebfd1b1e30bfc) 
- Use server-prepared statements for batch inserts when prepareThreshold>0. Note: this enables batch to use server-prepared from the first *executeBatch()* execution (previously it waited for *prepareThreshold* *executeBatch()* calls) [abc3d9d7](https://github.com/pgjdbc/pgjdbc/commit/abc3d9d7f34a001322fbbe53f25d5e77a33a667f)

### Fixed
- Replication API: fix issue in #834 setting statusIntervalUpdate causes high CPU load. [PR 835](https://github.com/pgjdbc/pgjdbc/pull/835) [59236b74](https://github.com/pgjdbc/pgjdbc/commit/59236b74acdd400d9d91d3eb2bb07d70b15392e5)

### Regresions
- NPE in PreparedStatement.executeBatch in case of empty batch. Fixed in 42.1.3

## [42.1.1] (2017-05-05)
### Fixed
- Fix infinite dates that might be corrupted when transferred in binary for certain JREs. For instance, 5881610-07-11 instead of infinity. [1e5bf563](https://github.com/pgjdbc/pgjdbc/commit/1e5bf563f41203417281117ed20b183cd295b4e0)

## [42.1.0] (2017-05-04)
### Added
- Support fetching a REF_CURSOR using getObject [PR 809](https://github.com/pgjdbc/pgjdbc/pull/809)

### Fixed
- Fix data being truncated in setCharacterStream (bug introduced in 42.0.0) [PR 802](https://github.com/pgjdbc/pgjdbc/pull/802)
- Fix calculation of lastReceiveLSN for logical replication [PR 801](https://github.com/pgjdbc/pgjdbc/pull/801)
- Make sure org.postgresql.Driver is loaded when accessing though DataSource interface [Issue 768](https://github.com/pgjdbc/pgjdbc/issues/768)

### Regressions
- There's no 42.1.0.jre6 version due to infinity handling bug. Fixed in 42.1.1.jre6

## [42.0.0] (2017-02-20)
### Added
- Replication protocol API was added: [replication API documentation](https://jdbc.postgresql.org//documentation/head/replication.html). [PR 550](https://github.com/pgjdbc/pgjdbc/pull/550)
- java.util.logging is now used for logging: [logging documentation](https://jdbc.postgresql.org//documentation/head/logging.html). [PR 722](https://github.com/pgjdbc/pgjdbc/pull/722)
- Add support for PreparedStatement.setCharacterStream(int, Reader). [ee4c4265](https://github.com/pgjdbc/pgjdbc/commit/ee4c4265aebc1c73a1d1fabac5ba259d1fbfd1e4)

### Changed
- Version bumped to 42.0.0 to avoid version clash with PostgreSQL version and follow a better sematic versioning. [46634923](https://github.com/pgjdbc/pgjdbc/commit/466349236622c6b03bb9cd8d7f517c3ce0586751)
- Ensure executeBatch() can be used with pgbouncer. Previously pgjdbc could use server-prepared statements for batch execution even with prepareThreshold=0. [Issue 742](https://github.com/pgjdbc/pgjdbc/issues/742)
- Error position is displayed when SQL has unterminated literals, comments, etc. [Issue 688](https://github.com/pgjdbc/pgjdbc/issues/688)
- Strict handling of accepted values in getBoolean and setObject(BOOLEAN), now it follows PostgreSQL accepted values, only 1 and 0 for numeric types are accepted (previously !=0 was true). [PR 732](https://github.com/pgjdbc/pgjdbc/pull/732)
- Return correct versions and name of the driver. [PR 668](https://github.com/pgjdbc/pgjdbc/pull/668)

### Removed
- Support for PostgreSQL versions below 8.2 was dropped. [PR 661](https://github.com/pgjdbc/pgjdbc/pull/661)

### Deprecated
- Deprecated PGPoolingDataSource, instead of this class you should use a fully featured connection pool like HikariCP, vibur-dbcp, commons-dbcp, c3p0, etc. [PR 739](https://github.com/pgjdbc/pgjdbc/pull/739)

### Regressions
- Data truncated in setCharacterStream. Fixed in 42.1.0
- No suitable driver found for jdbc:postgresql when using a DataSource implementation. Fixed in 42.1.0

[42.0.0]: https://github.com/pgjdbc/pgjdbc/compare/REL9.4.1212...REL42.0.0
[42.1.0]: https://github.com/pgjdbc/pgjdbc/compare/REL42.0.0...REL42.1.0
[42.1.1]: https://github.com/pgjdbc/pgjdbc/compare/REL42.1.0...REL42.1.1
[42.1.2]: https://github.com/pgjdbc/pgjdbc/compare/REL42.1.1...REL42.1.2
[42.1.3]: https://github.com/pgjdbc/pgjdbc/compare/REL42.1.2...REL42.1.3
[42.1.4]: https://github.com/pgjdbc/pgjdbc/compare/REL42.1.3...REL42.1.4
[42.2.0]: https://github.com/pgjdbc/pgjdbc/compare/REL42.1.4...REL42.2.0
[42.2.1]: https://github.com/pgjdbc/pgjdbc/compare/REL42.2.0...REL42.2.1
[42.2.2]: https://github.com/pgjdbc/pgjdbc/compare/REL42.2.1...REL42.2.2
[42.2.3]: https://github.com/pgjdbc/pgjdbc/compare/REL42.2.2...REL42.2.3
[42.2.4]: https://github.com/pgjdbc/pgjdbc/compare/REL42.2.3...REL42.2.4
[42.2.5]: https://github.com/pgjdbc/pgjdbc/compare/REL42.2.4...REL42.2.5
[Unreleased]: https://github.com/pgjdbc/pgjdbc/compare/REL42.2.5...HEAD

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