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Postgres FD Implementation
Commit 54dbd4dc authored by Tom Lane's avatar Tom Lane
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First-draft release notes for 9.6.3. 

As usual, the release notes for other branches will be made by cutting
these down, but put them up for community review first.  Note there
are some entries that really only apply to pre-9.6 branches.
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doc/src/sgml/release-9.6.sgml
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<!-- doc/src/sgml/release-9.6.sgml -->
<!-- See header comment in release.sgml about typical markup -->
<sect1 id="release-9-6-3">
<title>Release 9.6.3</title>
<note>
<title>Release Date</title>
<simpara>2017-05-11</simpara>
</note>
<para>
This release contains a variety of fixes from 9.6.2.
For information about new features in the 9.6 major release, see
<xref linkend="release-9-6">.
</para>
<sect2>
<title>Migration to Version 9.6.3</title>
<para>
A dump/restore is not required for those running 9.6.X.
</para>
<para>
However, if you are upgrading from a version earlier than 9.6.2,
see <xref linkend="release-9-6-2">.
</para>
</sect2>
<sect2>
<title>Changes</title>
<itemizedlist>
<listitem>
<!--
Author: Robert Haas <rhaas@postgresql.org>
Branch: master [87f998203] 2017-03-14 11:51:11 -0400
Branch: REL9_6_STABLE [36fcb36b8] 2017-03-14 11:52:27 -0400
Branch: REL9_5_STABLE [c17a3f57e] 2017-03-14 12:03:29 -0400
Branch: REL9_4_STABLE [bbd5e600f] 2017-03-14 12:06:36 -0400
Branch: REL9_3_STABLE [6bd7816e7] 2017-03-14 12:08:14 -0400
Branch: REL9_2_STABLE [b2ae1d6c4] 2017-03-14 12:10:36 -0400
-->
<para>
Fix possible corruption of <quote>init forks</> of unlogged indexes
(Robert Haas, Michael Paquier)
</para>
<para>
This could result in an unlogged index being set to an invalid state
after a crash and restart. Such a problem would persist until the
index was dropped and rebuilt.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [0874d4f3e] 2017-04-23 13:11:06 -0400
Branch: REL9_6_STABLE [f5885488d] 2017-04-23 13:11:08 -0400
Branch: REL9_5_STABLE [a66e01bbc] 2017-04-23 13:10:57 -0400
Branch: REL9_4_STABLE [2e14541c4] 2017-04-23 13:10:57 -0400
Branch: REL9_3_STABLE [856580873] 2017-04-23 13:10:57 -0400
Branch: REL9_2_STABLE [952e33b05] 2017-04-23 13:10:58 -0400
-->
<para>
Fix incorrect reconstruction of <structname>pg_subtrans</> entries
when a standby server replays a prepared but uncommitted two-phase
transaction (Tom Lane)
</para>
<para>
In most cases this turned out to have no visible ill effects, but in
corner cases it could result in circular references
in <structname>pg_subtrans</>, potentially causing infinite loops
in queries that examine rows modified by the two-phase transaction.
</para>
</listitem>
<listitem>
<!--
Author: Andres Freund <andres@anarazel.de>
Branch: master [2bef06d51] 2017-04-27 13:13:36 -0700
Branch: REL9_6_STABLE [28afff347] 2017-04-27 13:13:36 -0700
Branch: REL9_5_STABLE [47f896b5c] 2017-04-27 13:13:37 -0700
Branch: REL9_4_STABLE [5da646138] 2017-04-27 13:13:37 -0700
Branch: master [56e19d938] 2017-04-27 15:29:15 -0700
Branch: REL9_6_STABLE [29e8c881d] 2017-04-27 15:29:33 -0700
Branch: REL9_5_STABLE [54270d7eb] 2017-04-27 15:29:43 -0700
Branch: REL9_4_STABLE [b6ecf26cc] 2017-04-27 15:29:52 -0700
-->
<para>
Fix possibly-corrupt initial snapshot during logical decoding
(Petr Jelinek, Andres Freund)
</para>
<para>
If a logical decoding replication slot was created while another slot
already exists, it was initialized with a potentially-corrupted
snapshot, allowing wrong data to be returned during decoding.
The time window during which this snapshot continued to be used
depended on how busy the server was; under low load it would be hard
to see any problem.
</para>
</listitem>
<listitem>
<!--
Author: Fujii Masao <fujii@postgresql.org>
Branch: master [1d04a59be] 2017-02-22 03:11:58 +0900
Branch: REL9_6_STABLE [9fab155c6] 2017-02-22 08:29:32 +0900
Branch: REL9_5_STABLE [feb659cce] 2017-02-22 08:29:44 +0900
Branch: REL9_4_STABLE [a3eb715a3] 2017-02-22 08:29:57 +0900
-->
<para>
Avoid possible crash in <application>walsender</> due to failure
to initialize a string buffer (Stas Kelvich, Fujii Masao)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [3f074845a] 2017-05-04 13:59:39 -0400
Branch: REL9_6_STABLE [855f0e924] 2017-05-04 13:59:13 -0400
Branch: REL9_5_STABLE [6cfb428b0] 2017-05-04 13:59:13 -0400
-->
<para>
Fix possible crash when rescanning a nearest-neighbor index-only scan
on a GiST index (Tom Lane)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [893902085] 2017-04-24 13:00:30 -0400
Branch: REL9_6_STABLE [dfa4baf91] 2017-04-24 13:00:23 -0400
Branch: master [aa1351f1e] 2017-04-26 16:17:34 -0400
Branch: REL9_6_STABLE [e880df25e] 2017-04-26 16:17:29 -0400
-->
<para>
Prevent delays in postmaster's launching of parallel worker processes
(Tom Lane)
</para>
<para>
There could be a significant delay (up to tens of seconds) before
satisfying a query's request for more than one worker process. On most
platforms this required unlucky timing, but on some it was the typical
case.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [4fe04244b] 2017-04-24 12:16:58 -0400
Branch: REL9_6_STABLE [63f64d282] 2017-04-24 12:16:58 -0400
Branch: REL9_5_STABLE [dba1f310a] 2017-04-24 12:16:58 -0400
Branch: REL9_4_STABLE [436b560b8] 2017-04-24 12:16:58 -0400
-->
<para>
Fix postmaster's handling of <function>fork()</> failure for a
background worker process (Tom Lane)
</para>
<para>
Previously, the postmaster partially updated its state as though
the process had been successfully launched, resulting in subsequent
confusion.
</para>
</listitem>
<listitem>
<!--
Author: Andrew Gierth <rhodiumtoad@postgresql.org>
Branch: REL9_5_STABLE [7be3678a8] 2017-04-24 07:53:05 +0100
-->
<para>
Fix crash or wrong answers when a <literal>GROUPING SETS</> column's
data type is hashable but not sortable (Pavan Deolasee)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [89deca582] 2017-04-07 12:18:38 -0400
Branch: REL9_6_STABLE [c0a493e17] 2017-04-07 12:18:38 -0400
-->
<para>
Fix possible <quote>no relation entry for relid 0</> error when
planning nested set operations (Tom Lane)
</para>
</listitem>
<listitem>
<!--
Author: Robert Haas <rhaas@postgresql.org>
Branch: master [1ea60ad60] 2017-03-15 12:28:54 -0400
Branch: REL9_6_STABLE [5feb78ae8] 2017-03-15 12:41:00 -0400
Branch: master [f120b614e] 2017-03-24 12:30:39 -0400
Branch: REL9_6_STABLE [5674a258f] 2017-03-24 12:39:07 -0400
Branch: master [7d8f6986b] 2017-03-31 21:01:20 -0400
Branch: REL9_6_STABLE [fb1879c37] 2017-03-31 21:10:30 -0400
-->
<para>
Fix assorted minor issues in planning of parallel queries (Robert Haas)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [76799fc89] 2017-04-17 15:29:15 -0400
Branch: REL9_6_STABLE [6c73b390b] 2017-04-17 15:29:00 -0400
Branch: REL9_5_STABLE [6f0f98bb0] 2017-04-17 15:29:00 -0400
-->
<para>
Avoid applying <quote>physical targetlist</> optimization to custom
scans (Dmitry Ivanov, Tom Lane)
</para>
<para>
This optimization supposed that retrieving all columns of a tuple
is inexpensive, which is true for ordinary Postgres tuples; but it
might not be the case at all for a custom scan provider.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [9209e0760] 2017-05-02 18:06:09 -0400
Branch: REL9_6_STABLE [d56b8b41b] 2017-05-02 18:05:54 -0400
Branch: REL9_5_STABLE [d0d3a57bf] 2017-05-02 18:05:54 -0400
Branch: REL9_4_STABLE [c6b3d0706] 2017-05-02 18:05:54 -0400
Branch: REL9_3_STABLE [062824edd] 2017-05-02 18:05:54 -0400
Branch: REL9_2_STABLE [c9d6c564f] 2017-05-02 18:05:54 -0400
-->
<para>
Ensure parsing of queries in extension scripts sees the results of
immediately-preceding DDL (Julien Rouhaud, Tom Lane)
</para>
<para>
Due to lack of a cache flush step between commands in an extension
script file, non-utility queries might not see the effects of an
immediately preceding catalog change, such as <command>ALTER TABLE
... RENAME</>.
</para>
</listitem>
<listitem>
<!--
Author: Noah Misch <noah@leadboat.com>
Branch: master [f30f34e58] 2017-02-12 16:03:41 -0500
Branch: REL9_6_STABLE [4d43d5d35] 2017-02-12 16:03:46 -0500
Branch: REL9_5_STABLE [660e457f5] 2017-02-12 16:03:54 -0500
Branch: REL9_4_STABLE [804aad8ff] 2017-02-12 16:04:09 -0500
Branch: REL9_3_STABLE [b167d57d5] 2017-02-12 16:05:12 -0500
Branch: REL9_2_STABLE [27a8c8033] 2017-02-12 16:05:23 -0500
-->
<para>
Skip tablespace privilege checks when <command>ALTER TABLE ... ALTER
COLUMN TYPE</> rebuilds an existing index (Noah Misch)
</para>
<para>
The command failed if the calling user did not currently have
privileges to use the tablespace an index had been created in.
That behavior seems unhelpful, so skip the check, allowing the
index to be rebuilt where it is.
</para>
</listitem>
<listitem>
<!--
Author: Robert Haas <rhaas@postgresql.org>
Branch: master [6a4dda44e] 2017-04-28 14:48:38 -0400
Branch: REL9_6_STABLE [8a9c83bfa] 2017-04-28 14:48:44 -0400
Branch: REL9_5_STABLE [a0291c330] 2017-04-28 14:50:36 -0400
Branch: REL9_4_STABLE [93a07a68e] 2017-04-28 14:52:20 -0400
Branch: REL9_3_STABLE [954744f7a] 2017-04-28 14:53:56 -0400
Branch: REL9_2_STABLE [f60f0c8fe] 2017-04-28 14:55:42 -0400
-->
<para>
Fix <command>ALTER TABLE ... VALIDATE CONSTRAINT</> to not recurse
to child tables if the constraint is marked <literal>NO INHERIT</>
(Amit Langote)
</para>
<para>
This fix prevents unwanted <quote>constraint does not exist</> failures
when no matching constraint is present in the child tables.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [a8df75b0a] 2017-03-06 16:50:47 -0500
Branch: REL9_6_STABLE [943140d57] 2017-03-06 16:50:47 -0500
Branch: REL9_5_STABLE [420d9ec0a] 2017-03-06 16:50:47 -0500
-->
<para>
Avoid dangling pointer in <command>COPY ... TO</> when row-level
security is active for the source table (Tom Lane)
</para>
<para>
Usually this had no ill effects, but sometimes it would cause
unexpected errors or crashes.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [dbca84f04] 2017-03-04 16:09:33 -0500
Branch: REL9_6_STABLE [68f7b91e5] 2017-03-04 16:09:33 -0500
Branch: REL9_5_STABLE [807df31d1] 2017-03-04 16:09:33 -0500
-->
<para>
Avoid accessing an already-closed relcache entry in <command>CLUSTER</>
and <command>VACUUM FULL</> (Tom Lane)
</para>
<para>
With some bad luck, this could lead to indexes on the target
relation getting rebuilt with the wrong persistence setting.
</para>
</listitem>
<listitem>
<!--
Author: Andrew Gierth <rhodiumtoad@postgresql.org>
Branch: master [1914c5ea7] 2017-03-16 22:28:03 +0000
Branch: REL9_6_STABLE [9b626f6c3] 2017-03-16 22:31:49 +0000
Branch: REL9_5_STABLE [ee78ad5bc] 2017-03-16 22:33:59 +0000
Branch: REL9_4_STABLE [269efd052] 2017-03-16 22:32:56 +0000
Branch: REL9_3_STABLE [8f8a5aefc] 2017-03-16 22:33:18 +0000
Branch: REL9_2_STABLE [a494ff4b0] 2017-03-16 22:33:38 +0000
Branch: master [64ae420b2] 2017-03-17 14:35:54 +0000
Branch: REL9_6_STABLE [733488dc6] 2017-03-17 14:46:15 +0000
-->
<para>
Fix <command>VACUUM</> to account properly for pages that could not
be scanned due to conflicting page pins (Andrew Gierth)
</para>
<para>
This tended to lead to underestimation of the number of tuples in
the table. In the worst case of a small heavily-contended
table, <command>VACUUM</> could incorrectly report that the table
contained no tuples, leading to very bad planning choices.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [f2ec57dee] 2017-02-15 16:40:05 -0500
Branch: REL9_6_STABLE [354dfa235] 2017-02-15 16:40:05 -0500
Branch: REL9_5_STABLE [96ba17640] 2017-02-15 16:40:06 -0500
Branch: REL9_4_STABLE [d0e9c0e31] 2017-02-15 16:40:06 -0500
Branch: REL9_3_STABLE [6a4941f8c] 2017-02-15 16:40:06 -0500
Branch: REL9_2_STABLE [030705e4f] 2017-02-15 16:40:06 -0500
-->
<para>
Ensure that bulk-tuple-transfer loops within a hash join are
interruptible by query cancel requests (Tom Lane, Thomas Munro)
</para>
</listitem>
<listitem>
<!--
Author: Teodor Sigaev <teodor@sigaev.ru>
Branch: master [d5286aa90] 2017-03-21 16:23:10 +0300
Branch: REL9_6_STABLE [a4d07d2e9] 2017-03-21 16:24:10 +0300
-->
<para>
Fix incorrect support for certain <type>box</> operators in SP-GiST
(Nikita Glukhov)
</para>
<para>
SP-GiST index scans using the operators <literal>&amp;&lt;</>
<literal>&amp;&gt;</> <literal>&amp;&lt;|</> and <literal>|&amp;&gt;</>
would yield incorrect answers.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [df1a699e5] 2017-04-05 23:51:27 -0400
Branch: REL9_6_STABLE [fd52b8834] 2017-04-05 23:51:28 -0400
Branch: REL9_5_STABLE [d68a2b20a] 2017-04-05 23:51:28 -0400
Branch: REL9_4_STABLE [8851bcf88] 2017-04-05 23:51:28 -0400
-->
<para>
Fix integer-overflow problems in <type>interval</> comparison (Kyotaro
Horiguchi and Tom Lane)
</para>
<para>
The comparison operators for type <type>interval</> could yield wrong
answers for intervals larger than about 296000 years. Indexes on
columns containing such large values should be reindexed, since they
may be corrupt.
</para>
</listitem>
<listitem>
<!--
Author: Peter Eisentraut <peter_e@gmx.net>
Branch: master [0de791ed7] 2017-05-03 21:41:10 -0400
Branch: REL9_6_STABLE [071d13395] 2017-05-04 21:17:46 -0400
Branch: REL9_5_STABLE [9750a9583] 2017-05-04 21:20:26 -0400
Branch: REL9_4_STABLE [12dd58d64] 2017-05-04 21:22:48 -0400
Branch: REL9_3_STABLE [6e86b448f] 2017-05-04 21:31:12 -0400
Branch: REL9_2_STABLE [a48d47908] 2017-05-04 22:39:23 -0400
-->
<para>
Fix <function>cursor_to_xml()</> to produce valid output
with <replaceable>tableforest</> = false
(Thomas Munro, Peter Eisentraut)
</para>
<para>
Previously it failed to produce a wrapping <literal>&lt;table&gt;</>
element.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [8f93bd851] 2017-02-08 18:04:59 -0500
Branch: REL9_6_STABLE [404756fe8] 2017-02-08 18:04:59 -0500
Branch: REL9_5_STABLE [7786b9848] 2017-02-08 18:04:59 -0500
Branch: REL9_4_STABLE [1888fad44] 2017-02-08 18:04:59 -0500
Branch: master [5d2adf0f8] 2017-02-09 15:50:16 -0500
Branch: REL9_6_STABLE [fc96a5fbc] 2017-02-09 15:49:57 -0500
Branch: REL9_5_STABLE [cf73c6bfc] 2017-02-09 15:49:57 -0500
Branch: REL9_4_STABLE [86ef376bb] 2017-02-09 15:49:58 -0500
-->
<para>
Fix roundoff problems in <function>float8_timestamptz()</>
and <function>make_interval()</> (Tom Lane)
</para>
<para>
These functions truncated, rather than rounded, when converting a
floating-point value to integer microseconds; that could cause
unexpectedly off-by-one results.
</para>
</listitem>
<listitem>
<!--
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Branch: master [a3eac988c] 2017-03-16 12:51:08 -0300
Branch: REL9_6_STABLE [41306a511] 2017-03-16 12:51:08 -0300
Branch: REL9_5_STABLE [087e696f0] 2017-03-16 12:51:08 -0300
Branch: REL9_6_STABLE [1ec36a9eb] 2017-04-16 20:49:40 -0400
Branch: REL9_5_STABLE [b6e6ae1dc] 2017-04-16 20:50:31 -0400
-->
<para>
Fix <function>pg_get_object_address()</> to handle members of operator
families correctly (&Aacute;lvaro Herrera)
</para>
</listitem>
<listitem>
<!--
Author: Teodor Sigaev <teodor@sigaev.ru>
Branch: master [78874531b] 2017-03-24 13:53:40 +0300
Branch: REL9_6_STABLE [8de6278d3] 2017-03-24 13:55:02 +0300
-->
<para>
Fix cancelling of <function>pg_stop_backup()</> when attempting to stop
a non-exclusive backup (Michael Paquier, David Steele)
</para>
<para>
If <function>pg_stop_backup()</> was cancelled while waiting for a
non-exclusive backup to end, related state was left inconsistent;
a new exclusive backup could not be started, and there were other minor
problems.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [af2c5aa88] 2017-05-02 21:50:35 -0400
Branch: REL9_6_STABLE [c521d5a8d] 2017-05-02 21:50:42 -0400
Branch: REL9_5_STABLE [724cd4f06] 2017-05-02 21:50:47 -0400
Branch: REL9_4_STABLE [5557b6af5] 2017-05-02 21:50:52 -0400
Branch: REL9_3_STABLE [35ac926bf] 2017-05-02 21:50:56 -0400
Branch: REL9_2_STABLE [1b6db75ef] 2017-05-02 21:51:01 -0400
-->
<para>
Improve performance of <structname>pg_timezone_names</> view (Tom Lane)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [ff97741bc] 2017-03-08 12:21:23 -0500
Branch: REL9_6_STABLE [e0a6ed8a2] 2017-03-08 12:21:12 -0500
Branch: REL9_5_STABLE [50a9d714a] 2017-03-08 12:21:12 -0500
Branch: REL9_4_STABLE [8dd5c4171] 2017-03-08 12:21:12 -0500
-->
<para>
Reduce memory management overhead for contexts containing many large
blocks (Tom Lane)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [f97de05a1] 2017-02-21 17:51:37 -0500
Branch: REL9_6_STABLE [62ed08422] 2017-02-21 17:51:27 -0500
Branch: REL9_5_STABLE [ff1b032a9] 2017-02-21 17:51:28 -0500
Branch: REL9_4_STABLE [d9959e6eb] 2017-02-21 17:51:28 -0500
Branch: REL9_3_STABLE [3f613c6a4] 2017-02-21 17:51:28 -0500
Branch: REL9_2_STABLE [775227590] 2017-02-21 17:51:28 -0500
-->
<para>
Fix sloppy handling of corner-case errors from <function>lseek()</>
and <function>close()</> (Tom Lane)
</para>
<para>
Neither of these system calls are likely to fail in typical situations,
but if they did, <filename>fd.c</> could get quite confused.
</para>
</listitem>
<listitem>
<!--
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Branch: master [ff30aec75] 2017-03-17 11:14:01 +0200
Branch: REL9_6_STABLE [38bdba54a] 2017-03-17 11:14:36 +0200
Branch: REL9_5_STABLE [96fd76dd2] 2017-03-17 11:14:45 +0200
Branch: REL9_4_STABLE [6b584c36a] 2017-03-17 11:14:49 +0200
Branch: REL9_3_STABLE [3ebcc2498] 2017-03-17 11:14:53 +0200
Branch: REL9_2_STABLE [9c52ddfce] 2017-03-17 11:14:58 +0200
Branch: REL9_6_STABLE [4ae0805bb] 2017-03-24 12:39:23 +0200
Branch: REL9_5_STABLE [42a60aa7f] 2017-03-24 12:39:20 +0200
Branch: REL9_4_STABLE [6423ed7d4] 2017-03-24 12:39:17 +0200
Branch: REL9_3_STABLE [e0e1ef46d] 2017-03-24 12:39:14 +0200
Branch: REL9_2_STABLE [8ae3ff64b] 2017-03-24 12:39:01 +0200
-->
<para>
Fix incorrect check for whether postmaster is running as a Windows
service (Michael Paquier)
</para>
<para>
This could result in attempting to write to the event log when that
isn't accessible, so that no logging happens at all.
</para>
</listitem>
<listitem>
<!--
Author: Michael Meskes <meskes@postgresql.org>
Branch: master [43c79c7d6] 2017-03-13 21:03:55 +0100
Branch: REL9_6_STABLE [f08a90ecd] 2017-03-13 20:50:48 +0100
Branch: REL9_5_STABLE [a8b3262ab] 2017-03-13 20:51:46 +0100
Branch: REL9_4_STABLE [e060baaad] 2017-03-13 20:51:56 +0100
Branch: REL9_3_STABLE [04207ef76] 2017-03-13 20:52:05 +0100
Branch: REL9_2_STABLE [d8c207437] 2017-03-13 20:52:16 +0100
-->
<para>
Fix <application>ecpg</> to support <command>COMMIT PREPARED</>
and <command>ROLLBACK PREPARED</> (Masahiko Sawada)
</para>
</listitem>
<listitem>
<!--
Author: Michael Meskes <meskes@postgresql.org>
Branch: master [d1ca82d0a] 2017-03-10 10:32:41 +0100
Branch: REL9_6_STABLE [d0fef0654] 2017-03-10 10:50:46 +0100
Branch: REL9_5_STABLE [466ee7a53] 2017-03-10 10:51:24 +0100
Branch: REL9_4_STABLE [f6b906599] 2017-03-10 10:51:40 +0100
Branch: REL9_3_STABLE [af471919b] 2017-03-10 10:51:51 +0100
Branch: REL9_2_STABLE [731afc91f] 2017-03-10 10:52:01 +0100
-->
<para>
Fix a double-free error when processing dollar-quoted string literals
in <application>ecpg</> (Michael Meskes)
</para>
</listitem>
<listitem>
<!--
Author: Teodor Sigaev <teodor@sigaev.ru>
Branch: REL9_6_STABLE [2ed391f95] 2017-03-24 19:23:13 +0300
-->
<para>
Fix <application>pgbench</> to handle the combination
of <option>--connect</> and <option>--rate</> options correctly
(Fabien Coelho)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [ef2662394] 2017-03-07 11:36:42 -0500
Branch: REL9_6_STABLE [0e2c85d13] 2017-03-07 11:36:35 -0500
-->
<para>
Fix <application>pgbench</> to honor the long-form option
spelling <option>--builtin</>, as per its documentation (Tom Lane)
</para>
</listitem>
<listitem>
<!--
Author: Stephen Frost <sfrost@snowman.net>
Branch: master [330b84d8c] 2017-03-06 23:29:02 -0500
Branch: REL9_6_STABLE [e961341cc] 2017-03-06 23:29:08 -0500
-->
<para>
Fix <application>pg_dump</>/<application>pg_restore</> to correctly
handle privileges for the <literal>public</> schema when
using <option>--clean</> option (Stephen Frost)
</para>
<para>
Other schemas start out with no privileges granted,
but <literal>public</> does not; this requires special-case treatment
when it is dropped and restored due to the <option>--clean</> option.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [299990ba1] 2017-03-06 19:33:59 -0500
Branch: REL9_6_STABLE [8ea8178cd] 2017-03-06 19:33:59 -0500
Branch: REL9_5_STABLE [b6882e9ec] 2017-03-06 19:33:59 -0500
Branch: REL9_4_STABLE [db9b4b716] 2017-03-06 19:33:59 -0500
Branch: REL9_3_STABLE [783acfd4d] 2017-03-06 19:33:59 -0500
Branch: REL9_2_STABLE [0ab75448e] 2017-03-06 19:33:59 -0500
-->
<para>
In <application>pg_dump</>, fix incorrect schema and owner marking for
comments and security labels of some types of database objects
(Giuseppe Broccolo, Tom Lane)
</para>
<para>
In simple cases this caused no ill effects; but for example, a
schema-selective restore might omit comments it should include, because
they were not marked as belonging to the schema of their associated
object.
</para>
</listitem>
<listitem>
<!--
Author: Peter Eisentraut <peter_e@gmx.net>
Branch: master [39370e6a0] 2017-02-17 15:06:28 -0500
Branch: REL9_6_STABLE [4e8b2fd33] 2017-02-17 15:06:34 -0500
-->
<para>
Fix typo in <application>pg_dump</>'s query for initial privileges
of a procedural language (Peter Eisentraut)
</para>
<para>
This resulted in <application>pg_dump</> always thinking that the
language had no initial privileges; since that's true for most
procedural languages, bad effects from this bug are probably rare.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [f39ddd843] 2017-03-10 14:15:09 -0500
Branch: REL9_6_STABLE [4cdd81d90] 2017-03-10 14:15:09 -0500
Branch: REL9_5_STABLE [88f3743cb] 2017-03-10 14:15:09 -0500
Branch: REL9_4_STABLE [64d132c29] 2017-03-10 14:15:09 -0500
Branch: REL9_3_STABLE [0c0a95c2f] 2017-03-10 14:15:09 -0500
Branch: REL9_2_STABLE [e6d2ba419] 2017-03-10 14:15:09 -0500
-->
<para>
Avoid emitting an invalid list file in <literal>pg_restore -l</>
when SQL object names contain newlines (Tom Lane)
</para>
<para>
Replace newlines by spaces, which is sufficient to make the output
valid for <literal>pg_restore -L</>'s purposes.
</para>
</listitem>
<listitem>
<!--
Author: Stephen Frost <sfrost@snowman.net>
Branch: master [ff992c074] 2017-03-06 17:03:57 -0500
Branch: REL9_6_STABLE [65a3f233b] 2017-03-06 17:04:06 -0500
Branch: REL9_5_STABLE [6be8647f7] 2017-03-06 17:04:13 -0500
Branch: REL9_4_STABLE [93598898c] 2017-03-06 17:04:22 -0500
Branch: REL9_3_STABLE [7f831f09b] 2017-03-06 17:04:29 -0500
Branch: REL9_2_STABLE [e864cd25b] 2017-03-06 17:04:55 -0500
-->
<para>
Fix <application>pg_upgrade</> to transfer comments and security labels
attached to <quote>large objects</> (blobs) (Stephen Frost)
</para>
<para>
Previously, blobs were correctly transferred to the new database, but
any comments or security labels attached to them were lost.
</para>
</listitem>
<listitem>
<!--
Author: Noah Misch <noah@leadboat.com>
Branch: master [944a026b4] 2017-03-12 19:35:31 -0400
Branch: REL9_6_STABLE [08c6d42c8] 2017-03-12 19:35:49 -0400
Branch: REL9_5_STABLE [d0e5ac736] 2017-03-12 19:35:57 -0400
Branch: REL9_4_STABLE [4b2669ada] 2017-03-12 19:36:06 -0400
Branch: REL9_3_STABLE [e03c6d93b] 2017-03-12 19:36:15 -0400
Branch: REL9_2_STABLE [0276da5eb] 2017-03-12 19:36:28 -0400
-->
<para>
Improve error handling
in <filename>contrib/adminpack</>'s <function>pg_file_write()</>
function (Noah Misch)
</para>
<para>
Notably, it failed to detect errors reported
by <function>fclose()</>.
</para>
</listitem>
<listitem>
<!--
Author: Joe Conway <mail@joeconway.com>
Branch: master [cd1e23e93] 2017-03-11 13:32:18 -0800
Branch: REL9_6_STABLE [8469923f3] 2017-03-11 13:32:26 -0800
Branch: REL9_5_STABLE [82f3792a4] 2017-03-11 13:32:40 -0800
Branch: REL9_4_STABLE [166dfb3a9] 2017-03-11 13:33:14 -0800
Branch: REL9_3_STABLE [f6cfc14e5] 2017-03-11 13:33:22 -0800
Branch: REL9_2_STABLE [c4613c3f4] 2017-03-11 13:33:30 -0800
-->
<para>
In <filename>contrib/dblink</>, avoid connection leak when establishing
a new unnamed connection (Joe Conway)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [9e43e8714] 2017-02-22 15:04:26 -0500
Branch: REL9_6_STABLE [16500d227] 2017-02-22 15:04:07 -0500
Branch: REL9_5_STABLE [513c9f9de] 2017-02-22 15:04:07 -0500
Branch: REL9_4_STABLE [98755681a] 2017-02-22 15:04:07 -0500
Branch: REL9_3_STABLE [53b5a8c13] 2017-02-22 15:04:07 -0500
Branch: master [1dffabed4] 2017-04-14 14:52:21 -0400
Branch: REL9_6_STABLE [d51279433] 2017-04-14 14:52:03 -0400
Branch: REL9_5_STABLE [9b48ce377] 2017-04-14 14:52:03 -0400
Branch: REL9_4_STABLE [e0eda580d] 2017-04-14 14:52:03 -0400
Branch: REL9_3_STABLE [fad06b287] 2017-04-14 14:52:03 -0400
Branch: master [6cfaffc0d] 2017-04-13 17:18:35 -0400
Branch: REL9_6_STABLE [a70b18b89] 2017-04-13 17:18:35 -0400
Branch: REL9_5_STABLE [67665a71c] 2017-04-13 17:18:35 -0400
Branch: REL9_4_STABLE [b179684c7] 2017-04-13 17:18:35 -0400
Branch: REL9_3_STABLE [5be58cc89] 2017-04-13 17:18:35 -0400
-->
<para>
Fix <filename>contrib/pg_trgm</>'s extraction of trigrams from regular
expressions (Tom Lane)
</para>
<para>
In some cases it would produce a broken data structure that could never
match anything, leading to GIN or GiST indexscans that use a trigram
index not finding any matches to the regular expression.
</para>
</listitem>
<listitem>
<!--
Author: Peter Eisentraut <peter_e@gmx.net>
Branch: master [332bec1e6] 2017-04-24 22:50:07 -0400
Branch: REL9_6_STABLE [86e640a69] 2017-04-26 09:14:21 -0400
-->
<para>
In <filename>contrib/postgres_fdw</>, allow join conditions that
contain shippable extension-provided functions to be pushed to the
remote server (David Rowley, Ashutosh Bapat)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: REL9_4_STABLE [bb132cddf] 2017-04-15 20:16:03 -0400
Branch: REL9_3_STABLE [fbfeceb25] 2017-04-17 12:51:40 -0400
Branch: REL9_2_STABLE [58384149b] 2017-04-17 12:51:40 -0400
Branch: REL9_3_STABLE [4e91330da] 2017-04-17 13:52:42 -0400
Branch: REL9_2_STABLE [fb50c38e9] 2017-04-17 13:52:42 -0400
-->
<para>
Support OpenSSL 1.1.0 (Heikki Linnakangas, Andreas Karlsson, Tom Lane)
</para>
<para>
This is a back-patch of work previously done in newer branches;
it's needed since many platforms are adopting newer OpenSSL versions.
</para>
</listitem>
<listitem>
<!--
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Branch: master [14722c69f] 2017-05-05 12:38:29 -0300
Branch: REL9_6_STABLE [19a403378] 2017-05-05 12:05:34 -0300
Branch: REL9_5_STABLE [adfad4222] 2017-05-05 12:05:34 -0300
Branch: REL9_4_STABLE [41ba2ca08] 2017-05-05 12:05:34 -0300
Branch: REL9_3_STABLE [f692583dd] 2017-05-05 12:05:34 -0300
Branch: REL9_2_STABLE [992e581bf] 2017-05-05 12:05:34 -0300
-->
<para>
Support Tcl 8.6 in MSVC builds (&Aacute;lvaro Herrera)
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [e18b2c480] 2017-04-30 15:13:51 -0400
Branch: REL9_6_STABLE [6872d96a3] 2017-04-30 15:14:06 -0400
Branch: REL9_5_STABLE [4d4d8fa77] 2017-04-30 15:14:11 -0400
Branch: REL9_4_STABLE [96cad6f24] 2017-04-30 15:14:15 -0400
Branch: REL9_3_STABLE [f8cf9719d] 2017-04-30 15:14:20 -0400
Branch: REL9_2_STABLE [54aeb8d3e] 2017-04-30 15:14:24 -0400
-->
<para>
Sync our copy of the timezone library with IANA release tzcode2017b
(Tom Lane)
</para>
<para>
This fixes a bug affecting some DST transitions in January 2038.
</para>
</listitem>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
Branch: master [74a20d0ab] 2017-05-01 11:53:11 -0400
Branch: REL9_6_STABLE [1fdc3f6e8] 2017-05-01 11:53:42 -0400
Branch: REL9_5_STABLE [9a8cc157c] 2017-05-01 11:53:49 -0400
Branch: REL9_4_STABLE [1c8862346] 2017-05-01 11:53:56 -0400
Branch: REL9_3_STABLE [dc93cafca] 2017-05-01 11:54:02 -0400
Branch: REL9_2_STABLE [c96ccc40e] 2017-05-01 11:54:08 -0400
-->
<para>
Update time zone data files to <application>tzdata</> release 2017b
for DST law changes in Chile, Haiti, and Mongolia, plus historical
corrections for Ecuador, Kazakhstan, Liberia, and Spain.
Switch to numeric abbreviations for numerous time zones in South
America, the Pacific and Indian oceans, and some Asian and Middle
Eastern countries.
</para>
<para>
The IANA time zone database previously provided textual abbreviations
for all time zones, sometimes making up abbreviations that have little
or no currency among the local population. They are in process of
reversing that policy in favor of using numeric UTC offsets in zones
where there is no evidence of real-world use of an English
abbreviation. At least for the time being, <productname>PostgreSQL</>
will continue to accept such removed abbreviations for timestamp input.
But they will not be shown in the <structname>pg_timezone_names</>
view nor used for output.
</para>
</listitem>
</itemizedlist>
</sect2>
</sect1>
<sect1 id="release-9-6-2">
<title>Release 9.6.2</title>
......
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