Doc: make an editorial pass over the v15 release notes.

Rearrange, reword, clarify, fix markup, etc etc.

Also include commit bd8ac900d.

diff --git a/doc/src/sgml/release-15.sgml b/doc/src/sgml/release-15.sgml
index 26c695155bd888f43d9d06fc663f59b230d4d25e..0529677c2fcc59911c58357fd4acd59e010621d0 100644 (file)
--- a/doc/src/sgml/release-15.sgml
+++ b/doc/src/sgml/release-15.sgml
@@ -93,16 +93,17 @@ Author: Noah Misch 
      
       The new default is one of the secure schema usage patterns that 
       linkend="ddl-schemas-patterns"/> has recommended since the security
-      release for CVE-2018-1058.  The change applies to newly-created
-      databases in existing clusters and for new clusters.  Upgrading a
-      cluster or restoring a database dump will preserve existing permissions.
+      release for CVE-2018-1058.  The change applies to new database
+      clusters and to newly-created databases in existing clusters.
+      Upgrading a cluster or restoring a database dump will preserve
+      public's existing permissions.
      
 
      
       For existing databases, especially those having multiple users,
       consider revoking CREATE permission on
       the public schema to adopt this new default.
-      For new databases having zero need to defend against insider threats,
+      For new databases having no need to defend against insider threats,
       granting CREATE permission will yield the behavior
       of prior releases.
      
@@ -115,14 +116,22 @@ Author: Noah Misch 
 
     
      
-      Change the owner of the public schema to
-      pg_database_owner (Noah Misch)
+      Change the owner of the public schema to be the
+      new pg_database_owner role (Noah Misch)
      
 
      
-      Previously it was the literal user name of the bootstrap superuser.
-      Databases restored from previous Postgres releases will be restored
-      with their current owner specification.
+      This allows each database's owner to have ownership privileges on
+      the public schema within their database.
+      Previously it was owned by the bootstrap superuser, so that
+      non-superuser database owners could not do anything with it.
+     
+
+     
+      This change applies to new database clusters and to newly-created
+      databases in existing clusters.
+      Upgrading a cluster or restoring a database dump will preserve
+      public's existing ownership specification.
      
     
 
@@ -133,15 +142,14 @@ Author: Stephen Frost 
 
     
      
-      Remove long-deprecated exclusive 
-      linkend="backup-base-backup">backup mode (David Steele,
-      Nathan Bossart)
+      Remove long-deprecated exclusive
+      backup mode (David Steele, Nathan Bossart)
      
 
      
       If the database server stops abruptly while in this mode, the
-      server could fail to start.  The non-exclusive backup mode requires
-      a continuous database connection during the backup.  Functions
+      server could fail to start.  The non-exclusive backup mode is
+      considered superior for all purposes.  Functions
       pg_start_backup()/pg_stop_backup()
       have been renamed to
       pg_backup_start()/pg_backup_stop(),
@@ -163,9 +171,9 @@ Author: Peter Geoghegan 
      
 
      
-      This allows query hash operations to use double the amount of
+      This allows query hash operations to use more
       work_mem
-      memory as other operations.
+      memory than other operations.
      
     
 
@@ -180,25 +188,12 @@ Author: Andres Freund 
       linkend="plpython">plpython2u and generic
       Python language plpythonu (Andres Freund)
      
-    
-
-
-
-    
-     
-      Mark the 
-      linkend="datatype-datetime">interval output
-      function as stable, not immutable, since it depends on 
-      linkend="guc-intervalstyle">IntervalStyle
-      (Tom Lane)
-     
 
      
-      This will cause the creation of indexes relying on the text output
-      of interval values to fail.
+      Python 2.x is no longer supported.  While the original intent of
+      plpythonu was that it could eventually refer
+      to plpython3u, changing it now seems more likely
+      to cause problems than solve them, so it's just been removed.
      
     
 
@@ -211,7 +206,7 @@ Author: Tom Lane 
      
       Generate an error if 
       linkend="textsearch-functions-table">array_to_tsvector()
-      is passed an empty array element (Jean-Christophe Arnu)
+      is passed an empty-string array element (Jean-Christophe Arnu)
      
 
      
@@ -236,32 +231,33 @@ Author: Peter Eisentraut 
     
 
 
 
     
      
-      Prevent Unicode zero-length 
-      linkend="sql-syntax-identifiers">identifiers, e.g., U&""
-      (Peter Eisentraut)
-     
-
-     
-      Non-Unicode zero-length identifiers were already prevented.
+      Prevent CREATE OR REPLACE
+      VIEW from changing the collation of an output column
+      (Tom Lane)
      
     
 
 
 
     
      
-      Prevent CREATE OR REPLACE
-      VIEW from changing the collation of an output column
-      (Tom Lane)
+      Disallow zero-length 
+      linkend="sql-syntax-identifiers">Unicode identifiers,
+      e.g., U&""
+      (Peter Eisentraut)
+     
+
+     
+      Non-Unicode zero-length identifiers were already disallowed.
      
     
 
@@ -278,8 +274,9 @@ Author: Peter Eisentraut 
      
 
      
-      Previously literals like 123abc would be
-      interpreted as 123 and abc.
+      Previously, query text like 123abc would be
+      interpreted as 123 followed
+      by a separate token abc.
      
     
 
@@ -303,6 +300,24 @@ Author: Peter Eisentraut 
      
     
 
+
+
+    
+     
+      When interval
+      input provides a fractional value for a unit greater than months,
+      round to the nearest month (Bruce Momjian)
+     
+
+     
+      For example, convert 1.99 years to 2
+      years, not 1 year 11 months as before.
+     
+    
+
 
 
     
      
-      When specifying fractional interval values in units greater than
-      months, round to the nearest month (Bruce Momjian)
+      Mark the interval output
+      function as stable, not immutable, since it depends on 
+      linkend="guc-intervalstyle">IntervalStyle
+      (Tom Lane)
      
 
      
-      For example, report 1.99 years as 2
-      years, not 1 year 11 months.
+      This will, for example, cause creation of indexes relying on the
+      text output of interval values to fail.
      
     
 
@@ -350,9 +366,9 @@ Author: Tom Lane 
      
 
      
-      Specifically, functions justify_interval(),
+      The affected functions are justify_interval(),
       justify_hours(), and
-      justify_days() are affected.
+      justify_days().
      
     
 
@@ -386,7 +402,7 @@ Author: Robert Haas 
      
 
      
-      Previously, login roles could add/remove members of its own role,
+      Previously, a login role could add/remove members of its own role,
       even without ADMIN OPTION privilege.
      
     
@@ -423,9 +439,10 @@ Author: Jeff Davis 
      
 
      
-      UPDATE and DELETE perform
-      SELECT, so require the subscription owner to
-      have table SELECT permission.
+      UPDATE and DELETE commands
+      typically involve reading the table as well, so require the
+      subscription owner to have table SELECT
+      permission.
      
     
 
@@ -437,12 +454,13 @@ Author: Tom Lane 
     
      
       When EXPLAIN
-      references the temporary object schema, refer to it as
+      references the session's temporary object schema, refer to it as
       pg_temp (Amul Sul)
      
 
      
-      Previously the actual schema name was used.
+      Previously the actual schema name was reported, leading to
+      inconsistencies across sessions.
      
     
 
@@ -460,7 +478,7 @@ Author: Tom Lane 
      
 
      
-      Previously such cases would have one row for each index.
+      Previously such cases would show one row for each index.
      
     
 
@@ -475,14 +493,17 @@ Author: Tom Lane 
 
     
      
-      Disallow setting of server
-      variables matching the prefixes of installed extension
+      Disallow setting custom
+      options that match the name of an installed extension, but
+      are not one of the extension's declared variables
       (Florin Irion, Tom Lane)
      
 
      
-      This also deletes any matching server variables during extension
-      load.
+      This change causes any such pre-existing variables to be deleted
+      during extension load, and then prevents new ones from being created
+      later in the session.  The intent is to prevent confusion about
+      whether a variable is associated with an extension or not.
      
     
 
@@ -493,7 +514,7 @@ Author: Andres Freund 
 
     
      
-      Remove unnecessary server variable
+      Remove obsolete server variable
       stats_temp_directory (Andres Freund, Kyotaro
       Horiguchi)
      
@@ -514,8 +535,47 @@ Author: Tom Lane 
      
 
      
-      This will cause random() to differ from what
-      was emitted by prior versions for the same seed values.
+      This will cause random()'s results to differ
+      from what was emitted by prior versions, even for the same seed
+      value.
+     
+    
+
+
+
+    
+     
+      libpq's 
+      linkend="libpq-PQsendQuery">PQsendQuery()
+      function is no longer supported in pipeline mode (Álvaro Herrera)
+     
+
+     
+      Applications that are using that combination will need to be
+      modified to use PQsendQueryParams() instead.
+     
+    
+
+
+
+    
+     
+      On non-Windows platforms, consult the HOME environment
+      variable to find the user's home directory (Anders Kaseorg)
+     
+
+     
+      If HOME is empty or unset, fall back to the previous
+      method of checking the <pwd.h> database.
+      This change affects libpq (for example,
+      while looking up ~/.pgpass) as well as various
+      client application programs.
      
     
 
@@ -560,13 +620,13 @@ Author: Tom Lane 
 
     
      
-      Reduce casting of constants in 
-      linkend="postgres-fdw">postgres_fdw queries (Dian Fay)
+      Avoid unnecessary casting of constants in queries sent by 
+      linkend="postgres-fdw">postgres_fdw (Dian Fay)
      
 
      
-      If column types were mismatched between local and remote databases,
-      such casting could cause errors.
+      When column types are intentionally different between local and
+      remote databases, such casts could cause errors.
      
     
 
@@ -577,8 +637,8 @@ Author: Tom Lane 
 
     
      
-      Remove xml2's function
-      xml_is_well_formed() (Tom Lane)
+      Remove xml2's
+      xml_is_well_formed() function (Tom Lane)
      
 
      
@@ -635,12 +695,13 @@ Author: Peter Eisentraut 
       
 
       
-       This is designed to detect collation version
-       mismatches to avoid data corruption.  Function
+       This feature is designed to detect collation version
+       changes to avoid index corruption.  Function
        pg_database_collation_actual_version()
        reports the underlying operating system collation version, and
-       ALTER DATABASE ...  REFRESH sets the database
-       to match the operating system collation version.
+       ALTER DATABASE ...  REFRESH sets the recorded
+       database collation version to match the operating system collation
+       version.
       
      
 
@@ -658,11 +719,9 @@ Author: Peter Eisentraut 
 
       
        Previously, only libc-based
-       collations could be set at the cluster and database levels.
-       ICU collations were previously limited
-       to CREATE
-       COLLATION and referenced by the
-       COLLATE clause.
+       collations could be selected at the cluster and database levels.
+       ICU collations could only be used via explicit
+       COLLATE clauses.
       
      
 
@@ -699,8 +758,7 @@ Author: David Rowley 
        
 
        
-        Specifically this helps if only a small number of the many
-        partitions are relevant.
+        This change helps when only a few of many partitions are relevant.
        
       
 
@@ -719,7 +777,7 @@ Author: David Rowley 
         Previously, a partitioned table with a DEFAULT
         partition or a LIST partition containing
         multiple values could not be used for ordered partition scans.
-        Now they can be used if these partitions are pruned.
+        Now they can be used if such partitions are pruned during planning.
        
       
 
@@ -735,10 +793,10 @@ Author: Alvaro Herrera 
        
 
        
-        Previously, such updates ran delete actions on the source
-        partition and insert actions on the target partition.
-        PostgreSQL will now run update actions
-        on the referenced partition root.
+        Previously, such updates ran a delete action on the source
+        partition and an insert action on the target partition.
+        PostgreSQL will now run an update action
+        on the partition root, providing cleaner semantics.
        
       
 
@@ -765,7 +823,7 @@ Author: Alvaro Herrera 
        
         Fix ALTER TRIGGER
         RENAME on partitioned tables to properly rename
-        triggers an all partitions (Arne Roland, Álvaro Herrera)
+        triggers on all partitions (Arne Roland, Álvaro Herrera)
        
 
        
@@ -806,9 +864,10 @@ Author: Alexander Korotkov 
 
       
        
-        Improve lookup performance of 
-        linkend="gist">GiST indexes built using
-        sorting (Aliaksandr Kalenik, Sergei Shoulbakov, Andrey Borodin)
+        Improve lookup performance
+        of GiST indexes
+        that were built using sorting (Aliaksandr Kalenik, Sergei
+        Shoulbakov, Andrey Borodin)
        
       
 
@@ -824,7 +883,7 @@ Author: Peter Eisentraut 
        
 
        
-        Previously NULL values were always indexed
+        Previously NULL entries were always treated
         as distinct values, but this can now be changed by creating
         constraints and indexes using UNIQUE NULLS NOT
         DISTINCT.
@@ -838,10 +897,10 @@ Author: Tom Lane 
 
       
        
-        Allow 
+        Allow the 
         linkend="functions-string-other">^@
-        and starts_with() to use btree indexes if
-        using a C collation (Tom Lane)
+        starts-with operator and the starts_with()
+        function to use btree indexes if using the C collation (Tom Lane)
        
 
        
@@ -872,8 +931,8 @@ Author: Tomas Vondra 
        
 
        
-        Regular statistics already tracked parent and parent/all-children
-        statistics separately.
+        Regular statistics already tracked parent and
+        parent-plus-all-children statistics separately.
        
       
 
@@ -904,12 +963,9 @@ Author: Tom Lane 
        
         Add server variable 
         linkend="guc-recursive-worktable-factor">recursive_worktable_factor
-        to allow the user to specify the expected recursive query worktable
-        size (Simon Riggs)
-       
-
-       
-        WHAT IS A WORKTABLE?  NOT DEFINED.
+        to allow the user to specify the expected size of the working
+        table of a recursive
+        query (Simon Riggs)
        
       
 
@@ -939,6 +995,18 @@ Author: David Rowley 
        
       
 
+
+
+     
+      
+       Allow SELECT DISTINCT to be parallelized
+       (David Rowley)
+      
+     
+
 
-
-      
-       
-        Add two-phase information to the logical replication stream
-        (Ajin Cherian)
-       
 
        
         The new 
@@ -1672,7 +1744,7 @@ Author: Amit Kapila 
        
 
        
-        Previously, write transactions would send empty transactions to
+        Previously, publishers would send empty transactions to
         subscribers if subscribed tables were not modified.
        
       
@@ -1689,7 +1761,7 @@ Author: Michael Paquier 
        
 
        
-        Specifically, the functions are 
+        The new functions are 
         linkend="functions-admin-genfile-table">pg_ls_logicalsnapdir(),
         pg_ls_logicalmapdir(), and
         pg_ls_replslotdir().  They can be run by
@@ -1748,7 +1820,7 @@ Author: Amit Kapila 
        
         The new function 
         linkend="monitoring-stats-functions">pg_stat_reset_subscription_stats()
-        allows the resetting of subscriber statistics.
+        allows resetting these statistics counters.
        
       
 
@@ -1759,9 +1831,13 @@ Author: Amit Kapila 
 
       
        
-        Remove incorrect duplicate partitions in system view 
+        Suppress duplicate entries in the 
         linkend="view-pg-publication-tables">pg_publication_tables
-        (Hou Zhijie)
+        system view (Hou Zhijie)
+       
+
+       
+        In some cases a partition child table could appear more than once.
        
       
 
@@ -1771,27 +1847,6 @@ Author: Amit Kapila 
 
    
 
-   
-    <link linkend="sql-select"><command>SELECT</command></link>, <link linkend="sql-insert"><command>INSERT</command></link>
-
-    
-
-
-
-     
-      
-       Allow SELECT DISTINCT to be parallelized
-       (David Rowley)
-      
-     
-
-    
-
-   
-
    
     Utility Commands
 
@@ -1804,9 +1859,10 @@ Author: Alvaro Herrera 
 
      
       
-       Add SQL MERGE command to
-       adjust one table to match another (Simon Riggs, Pavan Deolasee,
-       Álvaro Herrera, Amit Langote)
+       Add SQL 
+       linkend="sql-merge">MERGE
+       command to adjust one table to match another (Simon Riggs, Pavan
+       Deolasee, Álvaro Herrera, Amit Langote)
       
 
       
@@ -1847,9 +1903,10 @@ Author: Robert Haas 
       
 
       
-       This is the new default for database creation and avoids the need
-       for checkpoints during database creation; the old method is still
-       available.
+       This is the new default method for copying the template database,
+       as it avoids the need for checkpoints during database creation.
+       However, it might be slow if the template database is large, so
+       the old method is still available.
       
      
 
@@ -1927,6 +1984,18 @@ Author: Michael Paquier 
       
      
 
+
+
+     
+      
+       Allow creation of unlogged 
+       linkend="sql-createsequence">sequences (Peter Eisentraut)
+      
+     
+
 
-
-     
-      
-       Allow the creation of unlogged 
-       linkend="sql-createsequence">sequences (Peter Eisentraut)
-      
-     
-
 
 
      
       
-       On Unix platforms, have client applications like 
-       linkend="app-psql">psql
-       check HOME environment variable for the user's
-       home directory before checking the operating system definition
-       (Anders Kaseorg)
+       Allow 
+       linkend="pgbench">pgbench to
+       retry after serialization and deadlock failures (Yugo Nagata,
+       Marina Polyakova)
       
      
 
@@ -2315,57 +2379,59 @@ Author: Heikki Linnakangas 
 2021-07-14 [eec57115e] In psql \copy from, send data to server in larger chunks
 -->
 
-       
-        
-        Improve performance of psql's \copy
-        command (Heikki Linnakangas)
+      
+       
+        Improve performance
+        of psql's \copy
+        command, by sending data in larger chunks (Heikki Linnakangas)
        
       
 
 
 
       
        
-        Add psql command \getenv
-        to assign the value of an environment variable to a
-        psql variable (Tom Lane)
+        Add \dconfig command to report server variables
+        (Mark Dilger, Tom Lane)
+       
+
+       
+        This is similar to the server-side SHOW
+        command, but it can process patterns to show multiple variables
+        conveniently.
        
       
 
 
 
       
        
-        Add '+' option to psql's
-        \lo_list/\dl to show object
-        privileges (Pavel Luzanov)
+        Add \getenv command
+        to assign the value of an environment variable to a
+        psql variable (Tom Lane)
        
       
 
 
 
       
        
-        Add psql \dconfig to report server
-        variables (Mark Dilger, Tom Lane)
-       
-
-       
-        This is similar to the server-side SHOW
-        command but can process patterns.
+        Add + option to the
+        \lo_list and \dl commands to
+        show large-object privileges (Pavel Luzanov)
        
       
 
@@ -2376,13 +2442,13 @@ Author: Thomas Munro 
 
       
        
-        Add pager option for psql's \watch
+        Add a pager option for the \watch
         command (Pavel Stehule, Thomas Munro)
        
 
        
-        This is only supported on Unix, and is controlled by
-        PSQL_WATCH_PAGER.
+        This is only supported on Unix, and is controlled by the
+        PSQL_WATCH_PAGER environment variable.
        
       
 
@@ -2395,13 +2461,13 @@ Author: Tom Lane 
 
       
        
-        Have psql send intra-query double-hyphen
-        comments to the server (Tom Lane, Greg Nancarrow)
+        Make psql include intra-query double-hyphen
+        comments in queries sent to the server (Tom Lane, Greg Nancarrow)
        
 
        
         Previously such comments were removed from the query
-        before being sent.  Double-hyphen comments that are before
+        before being sent.  Double-hyphen comments that are before any
         query text are not sent, and are not recorded as separate
         psql history entries.
        
@@ -2414,12 +2480,14 @@ Author: Tom Lane 
 
       
        
-        Adjust psql's readline meta-# to insert
-        a double-hyphen comment marker (Tom Lane)
+        Adjust psql so that Readline's
+        meta-# command will insert a double-hyphen
+        comment marker (Tom Lane)
        
 
        
-        Previously an unhelpful pound marker was inserted.
+        Previously a pound marker was inserted, but that's pretty
+        unhelpful in SQL.
        
       
 
@@ -2430,12 +2498,15 @@ Author: Peter Eisentraut 
 
       
        
-        Have psql output all results if multiple
+        Make psql output all results when multiple
         queries are passed to the server at once (Fabien Coelho)
        
 
        
-        This can be disabled by setting SHOW_ALL_RESULTS.
+        Previously, only the last query result was displayed.  The old
+        behavior can be restored by setting
+        the SHOW_ALL_RESULTS psql
+        variable to off.
        
       
 
@@ -2520,8 +2591,15 @@ Author: Tom Lane 
 
       
        
-        Limit support of psql to servers running
-        PostgreSQL 9.2 and later (Tom Lane)
+        Limit support of psql's backslash
+        commands to servers running PostgreSQL
+        9.2 or later (Tom Lane)
+       
+
+       
+        Remove code that was only used when running with an older server.
+        Commands that do not require any version-specific adjustments
+        compared to 9.2 will still work.
        
       
 
@@ -2529,49 +2607,133 @@ Author: Tom Lane 
 
     
 
-   
-
-   
-    Server Applications
+    
+     <link linkend="app-pgdump"><application>pg_dump</application></link>
 
-    
+     
 
 
 
-     
-      
-       Add new 
-       linkend="app-pgbasebackup">pg_basebackup
-       option --target to control the base backup location
-       (Robert Haas)
-      
-
-      
-       New output options are server to write the
-       backup locally and blackhole to discard the
-       backup (for testing).
-      
-     
+      
+       
+        Make pg_dump dump
+        public schema ownership changes and security
+        labels (Noah Misch)
+       
+      
 
 
 
-     
-      
-       Allow pg_basebackup to do server-side
-       gzip, LZ4, and Zstandard compression and client-side LZ4 and
-       Zstandard compression of base backup files (Dipesh Pandit,
-       Jeevan Ladhe)
-      
+      
+       
+        Improve performance of dumping databases with many objects
+        (Tom Lane)
+       
+
+       
+        This will also improve the performance of 
+        linkend="pgupgrade">pg_upgrade.
+       
+      
+
+
+
+      
+       
+        Improve parallel pg_dump's performance
+        for tables with large TOAST tables (Tom Lane)
+       
+      
+
+
+
+      
+       
+        Add dump/restore option --no-table-access-method
+        to force restore to only use the default table access method
+        (Justin Pryzby)
+       
+      
+
+
+
+      
+       
+        Limit support of pg_dump and 
+        linkend="app-pg-dumpall">pg_dumpall
+        to servers running PostgreSQL 9.2 or
+        later (Tom Lane)
+       
+      
+
+     
+
+    
+
+   
+
+   
+    Server Applications
+
+    
+
+
+
+     
+      
+       Add new 
+       linkend="app-pgbasebackup">pg_basebackup
+       option --target to control the base backup location
+       (Robert Haas)
+      
+
+      
+       New options are server to write the
+       backup locally and blackhole to discard the
+       backup (for testing).
+      
+     
+
+
+
+     
+      
+       Allow pg_basebackup to do server-side
+       gzip, LZ4, and Zstandard compression and client-side LZ4 and
+       Zstandard compression of base backup files (Dipesh Pandit,
+       Jeevan Ladhe)
+      
 
       
        Client-side gzip compression was already
@@ -2678,122 +2840,45 @@ Author: Michael Paquier 
 
      
       
-       Add pg_rewind option
-       --config-file to simplify use when server
+       Add 
+       linkend="app-pgrewind">pg_rewind
+       option --config-file to simplify use when server
        configuration files are stored outside the data directory (Gunnar
        Bluth)
       
      
 
-
-
-     
-      
-       Allow 
-       linkend="pgbench">pgbench to
-       retry after serialization and deadlock failures (Yugo Nagata,
-       Marina Polyakova)
-      
-     
-
     
 
     
-     <link linkend="<span class="marked">app-pgdump"><application>pg_dump</span></application></link>
+     <link linkend="<span class="marked">pgupgrade"><application>pg_upgrade</span></application></link>
 
      
 
-
-
-      
-       
-        Have pg_dump dump
-        public schema ownership changes and security
-        labels (Noah Misch)
-       
-
-       
-        It also dumps public schema comments.
-       
-      
-
-
-
-      
-       
-        Improve performance of dumping databases with many objects
-        (Tom Lane)
-       
-
-       
-        This will also improve the performance of 
-        linkend="pgupgrade">pg_upgrade.
-       
-      
-
-
-
-      
-       
-        Improve the parallel pg_dump performance
-        of TOAST tables (Tom Lane)
-       
-      
-
 
 
       
        
-        Add dump/restore option --no-table-access-method
-        to force restore to only use the default table access method
-        (Justin Pryzby)
+        Store pg_upgrade's log and
+        temporary files in a subdirectory of the new cluster called
+        pg_upgrade_output.d (Justin Pryzby)
        
-      
 
-
-
-      
        
-        Limit support of pg_dump and 
-        linkend="app-pg-dumpall">pg_dumpall
-        to servers running PostgreSQL 9.2 and
-        later (Tom Lane)
+        Previously such files were left in the current directory,
+        requiring manual cleanup.  It's still necessary to remove them
+        manually afterwards, but now one can just remove that whole
+        subdirectory.
        
       
 
-     
-
-    
-
-    
-     <link linkend="pgupgrade"><application>pg_upgrade</application></link>
-
-     
-
 
-
-      
-       
-        Store pg_upgrade's log and
-        temporary files in a subdirectory of the new cluster called
-        pg_upgrade_output.d (Justin Pryzby)
-       
-
-       
-        Previously such files were left in the current directory,
-        requiring manual cleanup.
-       
-      
-
 
 
      
       
-       Require OpenSSL to build 
-       linkend="pgcrypto">pgcrypto
-       binaries (Peter Eisentraut)
+       Require GNU make version 3.81 or later
+       to build PostgreSQL (Tom Lane)
       
      
 
 
 
      
       
-       Require GNU make version 3.81 or later
-       to build PostgreSQL (Tom Lane)
+       Require OpenSSL to build the 
+       linkend="pgcrypto">pgcrypto
+       extension (Peter Eisentraut)
       
      
 
@@ -3238,33 +3305,27 @@ Author: Andres Freund 
     
 
 
 
      
       
-       Add new module 
-       linkend="pgwalinspect">pg_walinspect
-       (Bharath Rupireddy)
-      
-
-      
-       This gives SQL-level output similar to 
-       linkend="pgwaldump">pg_waldump.
+       Allow 
+       linkend="amcheck">amcheck to
+       check sequences (Mark Dilger)
       
      
 
 
 
      
       
-       Add module 
-       linkend="basic-archive">basic_archive
-       to perform archiving via a library (Nathan Bossart)
+       Improve amcheck sanity checks for
+       TOAST tables (Mark Dilger)
       
      
 
@@ -3277,112 +3338,118 @@ Author: Robert Haas 
 
      
       
-       Add module 
+       Add new module 
        linkend="basebackup-to-shell">basebackup_to_shell
-       as a custom backup target (Robert Haas) contrib module.
+       as an example of a custom backup target (Robert Haas)
       
      
 
 
 
      
       
-       Add 
-       linkend="pgstatstatements">pg_stat_statements
-       output for temporary file block I/O (Masahiko Sawada)
+       Add new module 
+       linkend="basic-archive">basic_archive
+       as an example of performing archiving via a library (Nathan Bossart)
       
      
 
 
 
      
       
-       Add JIT counters to pg_stat_statements (Magnus
-       Hagander)
+       Allow 
+       linkend="btree-gist">btree_gist
+       indexes on boolean columns (Emre Hasegeli)
+      
+
+      
+       These can be used for exclusion constraints.
       
      
 
 
 
      
       
-       Allow 
-       linkend="amcheck">amcheck to
-       check sequences (Mark Dilger)
+       Fix 
+       linkend="pageinspect">pageinspect's
+       page_header() to handle 32-kilobyte page sizes
+       (Quan Zongliang)
+      
+
+      
+       Previously, improper negative values could be returned in certain
+       cases.
       
      
 
 
 
      
       
-       Improve amcheck sanity checks for
-       TOAST tables (Mark Dilger)
+       Add counters for temporary file block I/O to 
+       linkend="pgstatstatements">pg_stat_statements
+       (Masahiko Sawada)
       
      
 
 
 
      
       
-       Allow 
-       linkend="btree-gist">btree_gist
-       indexes on boolean columns (Emre Hasegeli)
-      
-
-      
-       These can be used for exclusion constraints.
+       Add JIT counters to pg_stat_statements (Magnus
+       Hagander)
       
      
 
 
 
      
       
-       Indicate the permissive/enforcing state in 
-       linkend="sepgsql">sepgsql log
-       messages (Dave Page)
+       Add new module 
+       linkend="pgwalinspect">pg_walinspect
+       (Bharath Rupireddy)
+      
+
+      
+       This gives SQL-level output similar to 
+       linkend="pgwaldump">pg_waldump.
       
      
 
 
 
      
       
-       Fix 
-       linkend="pageinspect">pageinspect's
-       page_header() to handle 32 kilobyte page sizes
-       (Quan Zongliang)
-      
-
-      
-       Previously improper negative values could be returned in certain
-       cases.
+       Indicate the permissive/enforcing state in 
+       linkend="sepgsql">sepgsql log
+       messages (Dave Page)
       
      
 
@@ -3422,12 +3489,13 @@ Author: Fujii Masao 
        
 
        
-        Previously the remote 
+        Previously the remote session's 
         linkend="guc-application-name">application_name
-        could only be set on the remote server or via
+        could only be set on the remote server or via a
         postgres_fdw connection specification.
-        postgres_fdw.application_name also supports
-        escape sequences for customization.
+        postgres_fdw.application_name supports some
+        escape sequences for customization, making it easier to tell such
+        connections apart on the remote server.
        
       
 
@@ -3444,7 +3512,7 @@ Author: Etsuro Fujita 
 
        
         This is enabled with the CREATE SERVER option
-        parallel_commit when using postgres_fdw.
+        parallel_commit.
        
       
 




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