Release notes for 16.2, 15.6, 14.11, 13.14, 12.18.
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Tom Lane
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@ -23,7 +23,13 @@
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</para>
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<para>
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However, if you are upgrading from a version earlier than 16.1,
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However, one bug was fixed that could have resulted in corruption of
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GIN indexes during concurrent updates. If you suspect such
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corruption, reindex affected indexes after installing this update.
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</para>
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<para>
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Also, if you are upgrading from a version earlier than 16.1,
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see <xref linkend="release-16-1"/>.
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</para>
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</sect2>
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@ -58,25 +64,6 @@ Branch: REL_12_STABLE [c922b2410] 2023-12-11 12:02:01 +0100
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<listitem>
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<!--
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Author: Andres Freund <andres@anarazel.de>
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Branch: REL_15_STABLE [f374fb4aa] 2024-01-18 11:12:31 +0900
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Branch: REL_14_STABLE [5f6ec27a6] 2024-01-18 11:12:38 +0900
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Branch: REL_13_STABLE [dc9d424cf] 2024-01-18 11:12:43 +0900
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Branch: REL_12_STABLE [810382285] 2024-01-18 11:12:48 +0900
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-->
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<para>
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When dequeueing from an LWLock, avoid needing to search the list of
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waiting processes (Andres Freund)
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</para>
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<para>
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This fixes O(N^2) behavior when the list of waiters is long. In
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some use-cases this results in substantial throughput improvements.
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Tom Lane <tgl@sss.pgh.pa.us>
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Branch: REL_16_STABLE [62f120203] 2024-02-01 12:34:21 -0500
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Branch: REL_15_STABLE [12ec16d11] 2024-02-01 12:34:21 -0500
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@ -750,14 +737,17 @@ Branch: REL_16_STABLE [48a6bf5c4] 2024-02-01 13:44:22 -0800
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Branch: REL_15_STABLE [8fa4a1ac6] 2024-02-01 13:44:23 -0800
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-->
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<para>
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Add more interlocks between <command>CREATE DATABASE</command> and
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base backup (Noah Misch)
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Ensure durability of <command>CREATE DATABASE</command> (Noah Misch)
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</para>
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<para>
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This fixes some cases where a base backup taken concurrently
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with <command>CREATE DATABASE</command> could produce a corrupt
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image of the new database.
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If an operating system crash occurred during or shortly
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after <command>CREATE DATABASE</command>, recovery could fail, or
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subsequent connections to the new database could fail. If a base
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backup was taken in that window, similar problems could be observed
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when trying to use the backup. The symptom would be that the
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database directory, <filename>PG_VERSION</filename> file, or
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<filename>pg_filenode.map</filename> file was missing or empty.
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</para>
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</listitem>
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@ -909,27 +899,6 @@ Branch: REL_15_STABLE [57aae65ae] 2023-11-22 11:14:35 +0530
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<listitem>
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<!--
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Author: Amit Kapila <akapila@postgresql.org>
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Branch: REL_15_STABLE [b793a416b] 2024-01-29 10:42:41 +0530
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Branch: REL_14_STABLE [6b77048e5] 2024-01-29 10:34:03 +0530
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-->
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<para>
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Prevent examining system catalogs with the wrong snapshot during
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logical decoding (Fei Changhong)
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</para>
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<para>
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If decoding begins partway through a transaction that modifies
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system catalogs, the decoder may not recognize that, causing it to
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fail to treat that transaction as in-progress for catalog lookups.
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This fix deals with the case that a top-level transaction is already
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marked as containing catalog changes, but its subtransaction(s) are
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not.
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Jeff Davis <jdavis@postgresql.org>
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Branch: master [5c3166905] 2024-01-12 13:41:36 -0800
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Branch: REL_16_STABLE [4c03ac7e2] 2024-01-12 13:42:09 -0800
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@ -1046,6 +1015,23 @@ Branch: REL_16_STABLE [41820e640] 2024-01-12 21:39:35 -0800
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<listitem>
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<!--
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Author: Tom Lane <tgl@sss.pgh.pa.us>
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Branch: master [e4e63cd98] 2024-02-02 15:34:29 -0500
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Branch: REL_16_STABLE [a15378100] 2024-02-02 15:34:29 -0500
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Branch: REL_15_STABLE [3766b8b64] 2024-02-02 15:34:29 -0500
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Branch: REL_14_STABLE [329b96882] 2024-02-02 15:34:29 -0500
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Branch: REL_13_STABLE [29df29dad] 2024-02-02 15:34:29 -0500
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Branch: REL_12_STABLE [4493bfb70] 2024-02-02 15:34:29 -0500
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-->
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<para>
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Report <systemitem>ENOMEM</systemitem> errors from file-related system
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calls as <literal>ERRCODE_OUT_OF_MEMORY</literal>,
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not <literal>ERRCODE_INTERNAL_ERROR</literal> (Alexander Kuzmenkov)
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</para>
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</listitem>
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<listitem>
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<!--
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Author: Tom Lane <tgl@sss.pgh.pa.us>
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Branch: master [57b440ec1] 2024-01-18 16:11:16 -0500
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Branch: REL_16_STABLE [00f941356] 2024-01-18 16:10:57 -0500
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Branch: REL_15_STABLE [de2d393a8] 2024-01-18 16:10:57 -0500
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