</para>
</listitem>
+<listitem>
+<!--
+Author: Alexander Korotkov <akorotkov@postgresql.org>
+2021-01-31 [0c4f355c6] Fix parsing of complex morphs to tsquery
+-->
+
+<para>
+Fix to_tsquery() and websearch_to_tsquery() to properly parse certain discarded tokens in quotes (Alexander Korotkov)
+</para>
+
+<para>
+Certain discarded tokens, like underscore, caused the output of these functions to produce incorrect tsquery output, e.g., websearch_to_tsquery('"pg_class pg"') used to output '( pg & class )
+<-> pg',but now outputs 'pg <-> class <-> pg'.
+</para>
+</listitem>
+
<listitem>
<!--
Author: Alexander Korotkov <akorotkov@postgresql.org>
-->
<para>
-Make websearch_to_tsquery() parse text in quotes as a single token (Alexander Korotkov)
+Fix websearch_to_tsquery() to properly parse multiple adjacent discarded tokens in quotes (Alexander Korotkov)
</para>
<para>
-DETAILS? ALREADY CHANGED ABOVE.
+Previously, quoted text that contained multiple adjacent discarded tokens were treated as multiple tokens, causing incorrect tsquery output, e.g., websearch_to_tsquery('"aaa: bbb"') used to output
+'aaa <2> bbb', but now outputs 'aaa <-> bbb'.
+</para>
+</listitem>
+
+<listitem>
+<!--
+Author: Peter Eisentraut <peter@eisentraut.org>
+2020-06-10 [c7eab0e97] Change default of password_encryption to scram-sha-256
+-->
+
+<para>
+Change password_encryption's default to scram-sha-256 (Peter Eisentraut)
+</para>
+
+<para>
+Previously it was md5. All new passwords will be stored as SHA256 unless this server variable is changed or the password is already md5-hashed.
</para>
</listitem>
</para>
</listitem>
+<listitem>
+<!--
+Author: Tom Lane <tgl@sss.pgh.pa.us>
+2021-04-07 [3db826bd5] Tighten up allowed names for custom GUC parameters.
+-->
+
+<para>
+Force custom server variable names to match the pattern used for unquoted SQL identifiers (Tom Lane)
+</para>
+</listitem>
+
<listitem>
<!--
Author: Joe Conway <mail@joeconway.com>
-->
<para>
-Return false for has_column_privilege() checks on non-existent or dropped columns (Joe Conway)
+Return false for has_column_privilege() checks on non-existent or dropped columns when using attribute numbers (Joe Conway)
</para>
<para>
-Previously such columns returned an invalid column error.
+Previously such attribute numbers returned an invalid column error.
</para>
</listitem>
</para>
<para>
-pg_dump and pg_upgrade will warn if post-fix operators are being dumped.
+pg_dump and pg_upgrade will warn if postfix operators are being dumped.
</para>
</listitem>
</para>
</listitem>
-<listitem>
-<!--
-Author: Peter Geoghegan <pg@bowt.ie>
-2020-07-02 [947456a82] Initialize work_mem using current guc.c default.
--->
-
-<para>
-Initialize work_mem and maintenance_work_mem using current guc.c default (Peter Geoghegan)
-</para>
-
-<para>
-Oversight in commit 848ae330a49, which increased the previous defaults
-for work_mem and maintenance_work_mem by 4X. IS THIS A BEHAVIORAL CHANGE?
-</para>
-</listitem>
-
<listitem>
<!--
Author: Peter Eisentraut <peter@eisentraut.org>
</para>
</listitem>
+<listitem>
+<!--
+Author: Peter Geoghegan <pg@bowt.ie>
+2021-03-21 [9dd963ae2] Recycle nbtree pages deleted during same VACUUM.
+-->
+
+<para>
+Allow VACUUM to eagerly add newly deleted btree pages in the free space map (Peter Geoghegan)
+</para>
+
+<para>
+Previously VACUUM could only place preexisting deleted pages in the free space map.
+</para>
+</listitem>
+
<listitem>
<!--
Author: Noah Misch <noah@leadboat.com>
-->
<para>
-Remove expired btree index entries to prevent page splits (Peter Geoghegan)
+Allow index additions to remove expired btree index entries to prevent page splits (Peter Geoghegan)
</para>
<para>
-->
<para>
-Allow some GiST index to be built by presorting the data (Andrey Borodin)
+Allow some GiST indexes to be built by presorting the data (Andrey Borodin)
</para>
<para>
</para>
<para>
-This can be set at the column level, or set as a default via server setting default_toast_compression. The server must be compiled with --with-lz4 support to enable this feature; the default is still pglz.
+This can be set at the column level, or set as a default via server setting default_toast_compression. The server must be compiled with --with-lz4 to support this feature; the default is still pglz.
</para>
</listitem>
-->
<para>
-Speed truncation of small tables on large shared buffer servers (Kirk Jamison)
+Speed truncation of small tables during recovery on clusters with a large number of shared buffers (Kirk Jamison)
</para>
</listitem>
-->
<para>
-Allow windowing functions to perform incremental sorts (David Rowley)
+Allow window functions to perform incremental sorts (David Rowley)
</para>
</listitem>
-->
<para>
-Improve pg_stat_activity reporting for walsenders processes (Tom Lane)
+Improve pg_stat_activity reporting for walsender processes (Tom Lane)
</para>
<para>
-->
<para>
-Add system view pg_stat_replication_slots to report replication slot activity (Sawada Masahiko, Amit Kapila)
+Add system view pg_stat_replication_slots to report replication slot activity (Sawada Masahiko, Amit Kapila, Vignesh C)
</para>
<para>
<itemizedlist>
-<listitem>
-<!--
-Author: Peter Eisentraut <peter@eisentraut.org>
-2020-06-10 [c7eab0e97] Change default of password_encryption to scram-sha-256
--->
-
-<para>
-Change password_encryption's default to scram-sha-256 (Peter Eisentraut)
-</para>
-
-<para>
-Previously it was md5.
-</para>
-</listitem>
-
<listitem>
<!--
Author: Andrew Dunstan <andrew@dunslane.net>
</para>
</listitem>
-<listitem>
-<!--
-Author: Tom Lane <tgl@sss.pgh.pa.us>
-2021-04-07 [3db826bd5] Tighten up allowed names for custom GUC parameters.
--->
-
-<para>
-Force custom server variable names to match the pattern used for unquoted SQL identifiers (Tom Lane)
-</para>
-</listitem>
-
<listitem>
<!--
Author: Stephen Frost <sfrost@snowman.net>
</para>
<para>
-This can be disabled by turning client options "sslsni" off.
+This can be disabled by turning client option "sslsni" off.
</para>
</listitem>
</para>
<para>
-This should reduce the number of failures without warning.
+This should reduce the possibility of failures that occur without having issued warnings about wraparound.
</para>
</listitem>
-->
<para>
-Allow multiple xacts during table sync in logical replication (Peter Smith, Amit Kapila, and Takamichi Osumi)
-</para>
-
-<para>
-IMPORTANT?
+Allow multiple transactions during table sync in logical replication (Peter Smith, Amit Kapila, and Takamichi Osumi)
</para>
</listitem>
2020-12-30 [0aa8a01d0] Extend the output plugin API to allow decoding of prepar
Author: Amit Kapila <akapila@postgresql.org>
2021-01-04 [a271a1b50] Allow decoding at prepare time in ReorderBuffer.
--->
-
-<para>
-Add support for streaming to built-in logical replication (Vondra, Dilip Kumar, Amit Kapila, Ajin Cherian, Nikhil Sontakke, Stas Kelvich)
-</para>
-</listitem>
-
-<listitem>
-<!--
Author: Amit Kapila <akapila@postgresql.org>
2020-08-08 [7259736a6] Implement streaming mode in ReorderBuffer.
-->
<para>
-Allow logical replication to stream long transactions to standbys (Dilip Kumar, Tomas Vondra, Amit Kapila, Nikhil Sontakke)
+Allow logical replication to stream long in-progress transactions to standbys (Tomas Vondra, Dilip Kumar, Amit Kapila, Ajin Cherian, Nikhil Sontakke, Stas Kelvich)
</para>
<para>
</para>
<para>
-Previously these functions could only be executed by super-users, and still defaults do that.
+Previously these functions could only be executed by super-users, and this is still the default.
</para>
</listitem>
-->
<para>
-Improve the logical replication API to allow streaming large in-progress transactions (Tomas Vondra, Dilip Kumar, Amit Kapila)
+Enhance the logical replication API to allow streaming large in-progress transactions (Tomas Vondra, Dilip Kumar, Amit Kapila)
</para>
<para>
<listitem>
<!--
Author: Amit Kapila <akapila@postgresql.org>
+2020-12-30 [0aa8a01d0] Extend the output plugin API to allow decoding of prepar
+Author: Amit Kapila <akapila@postgresql.org>
+2021-01-04 [a271a1b50] Allow decoding at prepare time in ReorderBuffer.
+Author: Amit Kapila <akapila@postgresql.org>
2021-03-03 [19890a064] Add option to enable two_phase commits via pg_create_log
-->
<para>
-Enable logical replication to handle two phase commits (Ajin Cherian)
+Enhance logical decoding APIs to handle two-phase commits (Ajin Cherian, Amit Kapila, Nikhil Sontakke, Stas Kelvich)
</para>
<para>
</para>
</listitem>
+<listitem>
+<!--
+Author: Amit Kapila <akapila@postgresql.org>
+2020-10-15 [d7eb52d71] Execute invalidation messages for each XLOG_XACT_INVALID
+-->
+
+<para>
+Allow logical decoding to more efficiently process cache invalidation messages
+</para>
+
+<para>
+This allows Logical decoding to work efficiently in presence of a large amount of DDL.
+</para>
+</listitem>
+
<listitem>
<!--
Author: Robert Haas <rhaas@postgresql.org>
</para>
<para>
-For example, GROUP BY CUBE (a,b), CUBE (b,c) will generated duplicate grouping combinations without DISTINCT.
+For example, GROUP BY CUBE (a,b), CUBE (b,c) will generate duplicate grouping combinations without DISTINCT.
</para>
</listitem>
</para>
</listitem>
-<listitem>
-<!--
-Author: Peter Geoghegan <pg@bowt.ie>
-2021-02-25 [237636183] VACUUM VERBOSE: Count "newly deleted" index pages.
--->
-
-<para>
-Allow VACUUM VERBOSE to report page deletion counts for each scan of an index (Peter Geoghegan)
-</para>
-
-<para>
-Previously only total page count deletion was reported.
-</para>
-</listitem>
-
<listitem>
<!--
Author: Michael Paquier <michael@paquier.xyz>
-->
<para>
-Allow REINDEX to process all child tables and indexes of a partitioned table (Justin Pryzby, Michael Paquier)
+Allow REINDEX to process all child tables or indexes of a partitioned relation (Justin Pryzby, Michael Paquier)
</para>
</listitem>
</para>
</listitem>
-<listitem>
-<!--
-Author: Alexander Korotkov <akorotkov@postgresql.org>
-2021-01-31 [0c4f355c6] Fix parsing of complex morphs to tsquery
--->
-
-<para>
-Improve to_tsquery() and websearch_to_tsquery() handling (Alexander Korotkov)
-</para>
-
-<para>
-NEED TEXT HERE
-</para>
-</listitem>
-
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
</para>
<para>
-Negative values count from the last field going forward.
+Negative values start from the last field and count backward.
</para>
</listitem>
</para>
<para>
-This allows multiple queries to be send and only wait for completion when a specific synchronization message is sent.
+This allows multiple queries to be sent and only wait for completion when a specific synchronization message is sent.
</para>
</listitem>
-->
<para>
-Enhance libpq libpq's target_session_attrs parameter options (Haribabu Kommi, Greg Nancarrow, Vignesh C, Tom Lane)
+Enhance libpq's target_session_attrs parameter options (Haribabu Kommi, Greg Nancarrow, Vignesh C, Tom Lane)
</para>
<para>
</para>
<para>
-With the removal of the ! operator in this release, factorial() is the only built-in way to computer a factorial.
+With the removal of the ! operator in this release, factorial() is the only built-in way to compute a factorial.
</para>
</listitem>
-->
<para>
-Add configure option --with-openssl to behave like --with-ssl={openssl} (Daniel Gustafsson, Michael Paquier)
+Add configure option --with-ssl={openssl} to behave like --with-openssl (Daniel Gustafsson, Michael Paquier)
</para>
<para>
</para>
<para>
-By default, only the root of partitioned tables are imported.
+By default, only the root of partitioned tables is imported.
</para>
</listitem>
projects / users / c2main / postgres.git / commitdiff