Bump postgresql from 42.2.5 to 42.2.6 in /modules/postgresql

[dependabot-preview]

Bumps postgresql from 42.2.5 to 42.2.6.

Changelog

Sourced from postgresql's changelog.

[42.2.6] (2019-06-19)

Known issues

• Microseconds in timestamps might be truncated when transferred in binary mode
• 24:00 time handling is not consistent issue 1385
• Unexpected packet type during stream replication issue 1466
• Driver goes missing after OSGi bundle restart issue 1476

Changed

• Change IS_GENERATED to IS_GENERATEDCOLUMN as per spec PR 1485
• Fix missing metadata columns, and misspelled columns in PgDatabaseMetaData#getTables PR 1323

Added

• CI tests with Java 11, and Java EA
• Support temporary replication slots in ReplicationCreateSlotBuilder PR 1306
• Support PostgreSQL 11, 12
• Return function (PostgreSQL 11) columns in PgDatabaseMetaData#getFunctionColumns
• Return information on create replication slot, now the snapshot_name is exported
  to allow a consistent snapshot in some uses cases. PR 1335

Fixed

• Fixed async copy performance (1ms per op) in SSL mode PR 1314
• Return Double.NaN for 'NaN'::numeric PR 1304
• Performance issue in PgDatabaseMetaData#getTypeInfo with lots of types in DB PR 1302
• PGCopyInputStream#read should cap values to [0, 255], -1 PR 1349
• Fixes LocalDateTime handling of BC dates PR 1388
• Release savepoints in autosave mode to prevent out of shared memory errors at the server side PR 1409
• Fix execution with big decimal in simple query mode. PR 1463
• Fix rounding for timestamps truncated to dates before 1970 PR 1502

Commits

• cf42ba2 [maven-release-plugin] prepare release REL42.2.6
• 407b264 update to parent pom 1.1.6
• e295361 Release notes for 42.2.6 (#1511)
• d99c9cb Revert "Fix maven coordinates (#1479)" (#1507)
• 95d8da6 fix: temporary make LibPQFactory.ConsoleCallbackHandler public
• 9fcaa98 docs: update translation files
• b565389 fix: date rounding errors for dates before 1970
• 45ce14f Fix maven coordinates (#1479)
• c9a7078 fix #1499 rounding for timestamps truncated to dates before 1970 (#1502)
• 1970c4a Make LogSequenceNumber implement Comparable<LogSequenceNumber> (#1494)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

If all status checks pass Dependabot will automatically merge this pull request.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot ignore this [patch|minor|major] version will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in the .dependabot/config.yml file in this repo:

• Update frequency (including time of day and day of week)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Pull request limits (per update run and/or open at any time)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

Finally, you can contact us by mentioning @dependabot.