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doc: more PG 16 relnote wording improvements
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‎doc/src/sgml/release-16.sgml

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@@ -253,7 +253,7 @@ Author: David Rowley <drowley@postgresql.org>
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<listitem>
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<para>
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Allow incremental sorts in more cases, including DISTINCT (David Rowley)window
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Allow incremental sorts in more cases, including DISTINCT (David Rowley)
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</para>
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</listitem>
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@@ -981,7 +981,7 @@ Store server variables in a hash table (Tom Lane)
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</para>
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<para>
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This allows faster addition of server variables.
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This allows the faster addition of server variables.
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</para>
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</listitem>
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@@ -992,7 +992,7 @@ Author: Tom Lane <tgl@sss.pgh.pa.us>
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<listitem>
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<para>
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Tighten restrictions on what server variables can be reset (Masahiko Sawada)
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Tighten restrictions on which server variables can be reset (Masahiko Sawada)
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</para>
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<para>
@@ -1086,7 +1086,7 @@ Allow the postmaster to terminate children with an abort signal (Tom Lane)
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</para>
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<para>
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Abort normally creates a core dump. This is controlled by send_abort_for_crash and send_abort_for_kill. postmaster -T now the same as setting send_abort_for_crash.
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Abort normally creates a core dump. This is controlled by send_abort_for_crash and send_abort_for_kill. postmaster -T is now the same as setting send_abort_for_crash.
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</para>
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</listitem>
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@@ -1117,154 +1117,163 @@ The number of reserved slots is set by server variable reserved_connections.
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</listitem>
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<!--
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Author: Jeff Davis <jdavis@postgresql.org>
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2023-03-10 [c45dc7ffb] initdb: derive encoding from locale for ICU; similar to
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Author: Thomas Munro <tmunro@postgresql.org>
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2023-04-08 [d4e71df6d] Add io_direct setting (developer-only).
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Author: Thomas Munro <tmunro@postgresql.org>
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2023-05-15 [319bae9a8] Rename io_direct to debug_io_direct.
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-->
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<listitem>
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<para>
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Determine the ICU default locale from the environment (Jeff Davis)
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Add debug_io_direct setting for developer usage (Thomas Munro, Andres Freund, Bharath Rupireddy)
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</para>
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<para>
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However, ICU doesn't support the C local so UTF-8 is used in such cases. Previously the default was always UTF-8.
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While primarily for developers, wal_sync_method=open_sync/open_datasync has been modified to not use direct I/O with wal_level=minimal; this is now enabled with debug_io_direct=wal.
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</para>
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</listitem>
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<!--
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Author: Peter Eisentraut <peter@eisentraut.org>
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2023-03-10 [0d21d4b9b] Add standard collation UNICODE
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Author: Michael Paquier <michael@paquier.xyz>
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2022-12-20 [cca186348] Add pg_dissect_walfile_name()
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Author: Michael Paquier <michael@paquier.xyz>
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2022-12-23 [13e0d7a60] Rename pg_dissect_walfile_name() to pg_split_walfile_nam
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-->
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<listitem>
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<para>
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Add predefined collations "unicode" and "ucs_basic" (Peter Eisentraut)
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</para>
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<para>
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This only works if ICU support is enabled.
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Add function pg_dissect_walfile_name() to report the segment and timeline values of WAL file names (Bharath Rupireddy)
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</para>
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</listitem>
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</itemizedlist>
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</sect4>
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<sect4 id="release-16-pg-hba">
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<title><link linkend="auth-pg-hba-conf">pg_hba.conf</link></title>
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<itemizedlist>
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<!--
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Author: Peter Eisentraut <peter@eisentraut.org>
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2023-03-08 [30a53b792] Allow tailoring of ICU locales with custom rules
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Author: Michael Paquier <michael@paquier.xyz>
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2022-10-24 [8fea86830] Add support for regexps on database and user entries in
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-->
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<listitem>
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<para>
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Allow custom ICU collation rules to be created (Peter Eisentraut)
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Add support for regular expression matching on database and role entries in pg_hba.conf (Bertrand Drouvot)
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</para>
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<para>
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This is done using CREATE COLLATION's new new RULES clause, as well as new options for CREATE DATABASE, createdb, and initdb.
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Regular expression patterns are prefixed with a slash. Database and role names that begin with slashes need to be double-quoted if referenced in pg_hba.conf.
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</para>
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<!--
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Author: Peter Eisentraut <peter@eisentraut.org>
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2023-01-03 [bf03cfd16] Windows support in pg_import_system_collations
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Author: Michael Paquier <michael@paquier.xyz>
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2023-01-20 [efb6f4a4f] Support the same patterns for pg-user in pg_ident.conf a
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-->
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<listitem>
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<para>
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Add Windows process the system collations (Jose Santamaria Flecha)
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ADD THIS?
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Improve user-column handling of pg_ident.conf to match pg_hba.conf (Jelte Fennema)
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</para>
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<para>
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Specifically, add support for "all", role membership with "+", and regular expressions with a leading slash. Any user name that matches these patterns must be double-quoted.
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<!--
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Author: Thomas Munro <tmunro@postgresql.org>
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2023-04-08 [d4e71df6d] Add io_direct setting (developer-only).
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Author: Thomas Munro <tmunro@postgresql.org>
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2023-05-15 [319bae9a8] Rename io_direct to debug_io_direct.
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Author: Michael Paquier <michael@paquier.xyz>
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2022-11-24 [a54b658ce] Add support for file inclusions in HBA and ident configu
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-->
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<listitem>
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<para>
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Add debug_io_direct setting for developer usage (Thomas Munro, Andres Freund, Bharath Rupireddy)
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Allow include files in pg_hba.conf and pg_ident.conf (Julien Rouhaud)
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</para>
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<para>
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While primarily for developers, wal_sync_method=open_sync/open_datasync has been modified to not use direct I/O with wal_level=minimal; this is now enabled with debug_io_direct=wal.
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These are controlled by "include", "include_if_exists", and "include_dir". System views pg_hba_file_rules and pg_ident_file_mappings now display the file name.
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</para>
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<!--
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Author: Michael Paquier <michael@paquier.xyz>
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2022-12-20 [cca186348] Add pg_dissect_walfile_name()
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Author: Michael Paquier <michael@paquier.xyz>
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2022-12-23 [13e0d7a60] Rename pg_dissect_walfile_name() to pg_split_walfile_nam
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2022-10-26 [c591300a8] Add rule_number to pg_hba_file_rules and map_number to p
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-->
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<listitem>
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<para>
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Add function pg_dissect_walfile_name() to report the segment and timeline values of WAL file names (Bharath Rupireddy)
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Add rule and map numbers to the system view pg_hba_file_rules (Julien Rouhaud)
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</para>
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</itemizedlist>
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</sect4>
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<sect4 id="release-16-pg-hba">
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<title><link linkend="auth-pg-hba-conf">pg_hba.conf</link></title>
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<sect4 id="release-16-localization">
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<title><link linkend="charset">Localization</link></title>
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<itemizedlist>
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<!--
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Author: Michael Paquier <michael@paquier.xyz>
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2022-10-24 [8fea86830] Add support for regexps on database and user entries in
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Author: Jeff Davis <jdavis@postgresql.org>
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2023-03-10 [c45dc7ffb] initdb: derive encoding from locale for ICU; similar to
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-->
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Add support for regular expression matching on database and role entries in pg_hba.conf (Bertrand Drouvot)
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Determine the ICU default locale from the environment (Jeff Davis)
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</para>
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<para>
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Regular expression patterns are prefixed with a slash. Database and role names that begin with slashes need to be double-quoted if referenced in pg_hba.conf.
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However, ICU doesn't support the C local so UTF-8 is used in such cases. Previously the default was always UTF-8.
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<!--
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Author: Michael Paquier <michael@paquier.xyz>
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2023-01-20 [efb6f4a4f] Support the same patterns for pg-user in pg_ident.conf a
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Author: Peter Eisentraut <peter@eisentraut.org>
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2023-03-10 [0d21d4b9b] Add standard collation UNICODE
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-->
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<listitem>
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<para>
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Improve user-column handling of pg_ident.conf to match pg_hba.conf (Jelte Fennema)
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Add predefined collations "unicode" and "ucs_basic" (Peter Eisentraut)
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</para>
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<para>
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Specifically, add support for "all", role membership with "+", and regular expressions with a leading slash. Any user name that matches these patterns must be double-quoted.
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This only works if ICU support is enabled.
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<!--
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Author: Michael Paquier <michael@paquier.xyz>
1247-
2022-11-24 [a54b658ce] Add support for file inclusions in HBA and ident configu
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Author: Peter Eisentraut <peter@eisentraut.org>
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2023-03-08 [30a53b792] Allow tailoring of ICU locales with custom rules
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-->
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<listitem>
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<para>
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Allow include files in pg_hba.conf and pg_ident.conf (Julien Rouhaud)
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Allow custom ICU collation rules to be created (Peter Eisentraut)
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</para>
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<para>
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These are controlled by "include", "include_if_exists", and "include_dir". System views pg_hba_file_rules and pg_ident_file_mappings now display the file name.
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This is done using CREATE COLLATION's new new RULES clause, as well as new options for CREATE DATABASE, createdb, and initdb.
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</para>
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<!--
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Author: Michael Paquier <michael@paquier.xyz>
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2022-10-26 [c591300a8] Add rule_number to pg_hba_file_rules and map_number to p
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Author: Peter Eisentraut <peter@eisentraut.org>
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2023-01-03 [bf03cfd16] Windows support in pg_import_system_collations
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-->
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Add rule and map numbers to the system view pg_hba_file_rules (Julien Rouhaud)
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Add Windows process the system collations (Jose Santamaria Flecha)
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ADD THIS?
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</para>
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</listitem>
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