Bump postgresql from 42.2.8 to 42.2.9 in /examples

[dependabot-preview]

Bumps postgresql from 42.2.8 to 42.2.9.

Changelog

Sourced from postgresql's changelog.

[42.2.9] (2019-12-06)

Changed

Added

• read only transactions PR 1252
• pkcs12 key functionality PR 1599
• new "escapeSyntaxCallMode" connection property PR 1560
• connection property to limit server error detail in exception exceptions PR 1579
• cancelQuery() to PGConnection public interface PR 1157
• support for large update counts (JDBC 4.2) PR 935
• Add Binary Support for Oid.NUMERIC and Oid.NUMERIC_ARRAY PR 1636

Fixed

• issue 716 getTypeInfo() may not return data in the order specified in Oracle documentation PR 1506
• PgSQLXML setCharacterStream() results in null value PR 1608
• get correct column length for simple domains PR 1605
• NPE as a result of calling executeQuery twice on a statement fixes issue #684 [PR 1610] (https://github-redirect.dependabot.com/pgjdbc/pgjdbc/pull/1610)
• handle numeric domain types PR 1611
• pginterval to take iso8601 strings PR 1612
• remove currentTimeMillis from code, tests are OK PR 1617
• NPE when calling setNull on a PreparedStatement with no parameters PR 1620
• allow OUT parameter registration when using CallableStatement native CALL PR 1561
• add release save point into execute with batch PR 1583
• Prevent use of extended query protocol for BEGIN before COPY PR 1639

Commits

• 29c6531 [maven-release-plugin] prepare release REL42.2.9
• 4a8a854 use TestUtil to find path of certdir (#1643)
• 03fdf75 Update
• fa69e7e new pr for release notes (#1640)
• b371153 Prevent use of extended query protocol for BEGIN before COPY (#1639)
• ad83cb3 Only allow binary transfer for those Oids that the pgjdbc currently supports ...
• c85b149 Add Binary Support for Oid.NUMERIC and Oid.NUMERIC_ARRAY (#1636)
• 08bd46b fix: null pointer exception from PgResultSetMetaData when there's no column m...
• ec76bac feat: WIP Filter DatabaseMetaData using privileges for the user (#1630)
• 8106d3d fix: DatabaseMetaData.getFunctions should not limit the search to the search_...
• 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 close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor 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
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

[dependabot-preview]

Dependabot tried to automerge this PR, but received the following error from GitHub:

Waiting on code owner review from bsideup, kiview, and/or rnorth.