diff --git a/doc/src/sgml/release-14.sgml b/doc/src/sgml/release-14.sgml
index a27f50accf..2b2cb84c39 100644
--- a/doc/src/sgml/release-14.sgml
+++ b/doc/src/sgml/release-14.sgml
@@ -62,19 +62,24 @@ Prevent the containment operators (<@ and @>) for contrib/intarray from us
-Previously a full GiST index scan was required, so just avoid that and scan the heap, which is faster.
-EXISTING INDEXES? REMOVE?
+Previously a full GiST index scan was required, so just avoid that and scan the heap, which is faster. Indexes created for this purpose should be removed.
-Disallow single-quoting of the language name in the CREATE/DROP LANGUAGE command (Peter Eisentraut)
+Remove deprecated containment operators @ and ~ for built-in geometric data types and contrib modules cube, hstore, intarray, and seg (Justin Pryzby)
+
+
+
+The more consistent <@ and @> have been recommended for many years.
@@ -114,6 +119,8 @@ Previously, quoted text that contained multiple adjacent discarded tokens were t
@@ -122,84 +129,23 @@ Change the default of the password_encryption server parameter to scram-sha-256
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.
-Also, the legacy (and undocumented) boolean-like values which were previously synonyms of md5 are no longer accepted.
+Also, the legacy (and undocumented) boolean-like values which were previously synonyms for md5 are no longer accepted.
-Change EXTRACT to return the NUMERIC data type (Peter Eisentraut)
+Overhaul the specification of clientcert in pg_hba.conf (Kyotaro Horiguchi)
-EXTRACT(date) now throws an error for units that are not part of the date data type.
-
-
-
-
-
-
-
-Pass doubled quote marks in ecpg SQL command strings literally (Tom Lane)
-
-
-
-Previously 'abc''def' was passed to the server as 'abc'def'; "abc""def" was passed as "abc"def".
-
-
-
-
-
-
-
-Prevent tablefunc's function normal_rand() from accepting negative values (Ashutosh Bapat)
-
-
-
-Negative values produced undesirable results.
-
-
-
-
-
-
-
-Fix handling of infinite window function ranges (Tom Lane)
-
-
-
-Previously window frame clauses like 'inf' PRECEDING AND 'inf' FOLLOWING returned incorrect results.
-
-
-
-
-
-
-
-Change var_samp() and stddev_samp() with numeric parameters to return NULL for a single NaN value (Tom Lane)
-
-
-
-Previously NaN was returned.
+Values 1/0/no-verify are no longer supported; only the strings verify-ca and verify-full can be used. Also, disallow verify-ca if cert authentication is enabled since cert requires verify-full
+checking.
@@ -220,23 +166,6 @@ This was already disabled by default in previous Postgres releases, and most mod
-
-
-
-
-Remove deprecated containment operators @ and ~ for built-in geometric data types and contrib modules cube, hstore, intarray, and seg (Justin Pryzby)
-
-
-
-The more consistent <@ and @> have been recommended for many years.
-
-
-
-Improve handling of regular expression back-references (Tom Lane)
+Change EXTRACT to return the NUMERIC data type (Peter Eisentraut)
-For example, disregard ^ in its expansion in \1 in "(^\d+).*\1".
+EXTRACT(date) now throws an error for units that are not part of the date data type.
-Allow \D and \W shorthands to match newlines in newline-sensitive mode (Tom Lane)
+Fix handling of infinite window function ranges (Tom Lane)
-Previously they did not match; [^[:digit:]] or [^[:word:]] can be used to get the old behavior.
+Previously window frame clauses like 'inf' PRECEDING AND 'inf' FOLLOWING returned incorrect results.
+
+
+
+
+
+
+
+Prevent tablefunc's function normal_rand() from accepting negative values (Ashutosh Bapat)
+
+
+
+Negative values produced undesirable results.
-Disallow \w as range start/end in character classes (Tom Lane)
+Change var_samp() and stddev_samp() with numeric parameters to return NULL for a single NaN value (Tom Lane)
-This previously was allowed but produced incorrect results.
-
-
-
-
-
-
-
-Force custom server variable names to match the pattern used for unquoted SQL identifiers (Tom Lane)
-
-
-
-
-
-
-
-Return false for has_column_privilege() checks on non-existent or dropped columns when using attribute numbers (Joe Conway)
-
-
-
-Previously such attribute numbers returned an invalid column error.
-
-
-
-
-
-
-
-Remove contrib program pg_standby (Justin Pryzby)
-
-
-
-
-
-
-
-Overhaul the specification of clientcert in pg_hba.conf (Kyotaro Horiguchi)
-
-
-
-Values 1/0/no-verify are no longer supported; only the strings verify-ca and verify-full can be used. Also, disallow verify-ca if cert authentication is enabled since cert requires verify-full
-checking.
+Previously NaN was returned.
@@ -395,6 +286,116 @@ pg_dump and pg_upgrade will warn if postfix operators are being dumped.
+
+
+
+
+Allow \D and \W shorthands to match newlines in newline-sensitive mode (Tom Lane)
+
+
+
+Previously they did not match; [^[:digit:]] or [^[:word:]] can be used to get the old behavior.
+
+
+
+
+
+
+
+Improve handling of regular expression back-references (Tom Lane)
+
+
+
+For example, disregard ^ in its expansion in \1 in "(^\d+).*\1".
+
+
+
+
+
+
+
+Disallow \w as range start/end in character classes (Tom Lane)
+
+
+
+This previously was allowed but produced incorrect results.
+
+
+
+
+
+
+
+Force custom server variable names to match the pattern used for unquoted SQL identifiers (Tom Lane)
+
+
+
+
+
+
+
+Return false for has_column_privilege() checks on non-existent or dropped columns when using attribute numbers (Joe Conway)
+
+
+
+Previously such attribute numbers returned an invalid column error.
+
+
+
+
+
+
+
+Pass doubled quote marks in ecpg SQL command strings literally (Tom Lane)
+
+
+
+Previously 'abc''def' was passed to the server as 'abc'def', and "abc""def" was passed as "abc"def".
+
+
+
+
+
+
+
+Disallow single-quoting of the language name in the CREATE/DROP LANGUAGE command (Peter Eisentraut)
+
+
+
+
+
+
+
+Remove contrib program pg_standby (Justin Pryzby)
+
+
+
-
-
-Limit the ways password_encryption can enable md5 hashing (Peter Eisentraut)
-
-
-
-Previously on/true/yes/1 values enabled md5. Now, only the string md5 does this.
-
@@ -456,72 +442,16 @@ Previously on/true/yes/1 values enabled md5. Now, only the string md5 does this
-Add function pg_wait_for_backend_termination() that waits for session exit (Bharath Rupireddy)
+Add predefined roles pg_read_all_data and pg_write_all_data (Stephen Frost)
-Also add a similar optional wait parameter to pg_terminate_backend().
-
-
-
-
-
-
-
-Autovacuum now analyzes partitioned tables (Yuzuko Hosoya)
-
-
-
-DETAILS?
-
-
-
-
-
-
-
-Allow vacuum to skip index vacuuming when the number of removable index entries is insignificant (Masahiko Sawada, Peter Geoghegan)
-
-
-
-
-
-
-
-Cause vacuum operations to be aggressive if the table is near xid or multixact wraparound (Masahiko Sawada, Peter Geoghegan)
-
-
-
-This is controlled by vacuum_failsafe_age and vacuum_multixact_failsafe_age.
-
-
-
-
-
-
-
-Allow VACUUM to eagerly add newly deleted btree pages to the free space map (Peter Geoghegan)
-
-
-
-Previously VACUUM could only place preexisting deleted pages in the free space map.
+These non-login roles give read-only/write-only access to all objects.
@@ -542,16 +472,16 @@ It is called pg_database_owner; this is useful in template databases.
-Add predefined roles pg_read_all_data and pg_write_all_data (Stephen Frost)
+Remove temporary files after backend crashes (Euler Taveira)
-These non-login roles give read-only/write-only access to all objects.
+These files were previously retained for debugging purposes; deletion can be disabled with remove_temp_files_after_crash.
@@ -572,27 +502,16 @@ The server variable client_connection_check_interval allows supporting operating
-Remove temporary files after backend crashes (Euler Taveira)
+Add function pg_wait_for_backend_termination() that waits for session exit (Bharath Rupireddy)
-These files were previously retained for debugging purposes; deletion can be disabled with remove_temp_files_after_crash.
-
-
-
-
-
-
-
-Deallocate space reserved by trailing unused heap line pointers (Matthias van de Meent, Peter Geoghegan)
+Also add a similar optional wait parameter to pg_terminate_backend().
@@ -609,15 +528,191 @@ Allow wide tuples to be always added to almost-empty heap pages (John Naylor, Fl
Previously tuples whose insertion would have exceeded the page's fill factor were instead added to new pages.
+
+
+
+
+
+
+Add Set Server Name Indication (SNI) for SSL connection packets (Peter Eisentraut)
+
+
+
+This can be disabled by turning client option "sslsni" off.
+
+
+ Vacuuming
+
+
+
+
+
+
+
+Allow vacuum to skip index vacuuming when the number of removable index entries is insignificant (Masahiko Sawada, Peter Geoghegan)
+
+
+
+
+
+
+
+Allow VACUUM to eagerly add newly deleted btree pages to the free space map (Peter Geoghegan)
+
+
+
+Previously VACUUM could only place preexisting deleted pages in the free space map.
+
+
+
+
+
+
+
+Allow vacuum to deallocate space reserved by trailing unused heap line pointers (Matthias van de Meent, Peter Geoghegan)
+
+
+
+
+
+
+
+Speed up vacuuming of databases with many relations (Tatsuhito Kasahara)
+
+
+
+
+
+
+
+Reduce the default value of vacuum_cost_page_miss (Peter Geoghegan)
+
+
+
+This new default better reflects current hardware capabilities.
+
+
+
+
+
+
+
+Add ability to skip vacuuming of TOAST tables (Nathan Bossart)
+
+
+
+VACUUM now has a PROCESS_TOAST which can be set to false to disable TOAST processing, and vacuumdb has a --no-process-toast option.
+
+
+
+
+
+
+
+Cause vacuum operations to be aggressive if the table is near xid or multixact wraparound (Masahiko Sawada, Peter Geoghegan)
+
+
+
+This is controlled by vacuum_failsafe_age and vacuum_multixact_failsafe_age.
+
+
+
+
+
+
+
+Increase warning time and hard limit before transaction id and multi-transaction wraparound (Noah Misch)
+
+
+
+This should reduce the possibility of failures that occur without having issued warnings about wraparound.
+
+
+
+
+
+
+
+Autovacuum now analyzes partitioned tables (Yuzuko Hosoya)
+
+
+
+DETAILS?
+
+
+
+
+
+
+
+Add per-index information to autovacuum logging output (Masahiko Sawada)
+
+
+
+
+
+
Partitioning
+
+
+
+
+Improve the performance of updates/deletes on partitioned tables when only a few partitions are affected (Amit Langote, Tom Lane)
+
+
+
+This also allows updates/deletes on partitioned tables to use execution-time partition pruning.
+
+
+
-
-
-Improve the performance of updates/deletes on partitioned tables when only a few partitions are affected (Amit Langote, Tom Lane)
-
-
-
-This also allows updates/deletes on partitioned tables to use execution-time partition pruning.
-
@@ -685,7 +761,7 @@ Author: Peter Geoghegan
-->
-Allow index additions to remove expired btree index entries to prevent page splits (Peter Geoghegan)
+Allow btree index additions to remove expired index entries to prevent page splits (Peter Geoghegan)
@@ -723,17 +799,6 @@ This allows bloom indexes to be used effectively with data that is not physicall
-
-
-
-
-Allow SP-GiST to use INCLUDE'd columns (Pavel Borisov)
-
-
-
+
+
+Allow SP-GiST to use INCLUDE'd columns (Pavel Borisov)
+
@@ -758,6 +834,36 @@ Presorting happens automatically and allows for faster index creation and smalle
+
+
+
+
+Allow hash lookup of IN clause with many constants (James Coleman, David Rowley)
+
+
+
+Previously the only option was to sequentially scan the list of constants.
+
+
+
+
+
+
+
+Increase the number of places extended statistics can be used for OR clause estimation (Tomas Vondra, Dean Rasheed)
+
+
+
-Increase the number of places extended statistics can be used for OR clause estimation (Tomas Vondra, Dean Rasheed)
+Allow efficient heap scanning of a range of tids (Edmund Horner, David Rowley)
+
+
+
+Previously a sequential scan was required for non-equality tid specifications.
+
+
+
+
+
+
+
+Fix EXPLAIN CREATE TABLE AS and EXPLAIN CREATE MATERIALIZED VIEW to honor IF NOT EXISTS (Bharath Rupireddy)
+
+
+
+Previously, if the object already exists, EXPLAIN would fail.
@@ -815,7 +936,7 @@ Author: Andres Freund
-->
-Improve speed of computing MVCC visibility snapshots on systems with many CPUs and high session count (Andres Freund)
+Improve the speed of computing MVCC visibility snapshots on systems with many CPUs and high session counts (Andres Freund)
@@ -840,46 +961,12 @@ This is useful if only a small percentage of rows is checked on the inner side.
-Allow a query referencing multiple foreign tables to perform foreign table scans in parallel (Robert Haas, Kyotaro Horiguchi, Thomas Munro, Etsuro Fujita)
-
-
-
-The postgres_fdw supports these type of scans if "async_capable" is set.
-
-
-
-
-
-
-
-Add ability to use LZ4 compression on TOAST data (Dilip Kumar)
-
-
-
-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.
-
-
-
-
-
-
-
-Allow analyze to do page prefetching (Stephen Frost)
-
-
-
-This is controlled by maintenance_io_concurrency.
+Allow window functions to perform incremental sorts (David Rowley)
@@ -898,6 +985,36 @@ This was done by allocating blocks in groups to parallel workers.
+
+
+
+
+Allow a query referencing multiple foreign tables to perform foreign table scans in parallel (Robert Haas, Kyotaro Horiguchi, Thomas Munro, Etsuro Fujita)
+
+
+
+The postgres_fdw supports these type of scans if "async_capable" is set.
+
+
+
+
+
+
+
+Allow analyze to do page prefetching (Stephen Frost)
+
+
+
+This is controlled by maintenance_io_concurrency.
+
+
+
-
-
-Speed truncation of small tables during recovery on clusters with a large number of shared buffers (Kirk Jamison)
-
-
-
-
-
-
-
-Speed up vacuuming of databases with many relations (Tatsuhito Kasahara)
-
-
-
-
-
-
-
-Allow window functions to perform incremental sorts (David Rowley)
-
-
-
+
+
+Add ability to use LZ4 compression on TOAST data (Dilip Kumar)
+
+
+
+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.
+
@@ -1011,12 +1110,14 @@ A query id computed by an extension will also be displayed.
-Add information about the original user name supplied by the client to the output of log_connections (Jacob Champion)
+Add system view pg_backend_memory_contexts to report session memory usage (Atsushi Torikoshi, Fujii Masao)
@@ -1031,17 +1132,6 @@ Add function pg_backend_memory_contexts() to output the memory contexts of arbit
-
-
-
-
-Add per-index information to autovacuum logging output (Masahiko Sawada)
-
-
-
+
+
+Add information about the original user name supplied by the client to the output of log_connections (Jacob Champion)
+
@@ -1066,32 +1167,6 @@ This reports I/O timings for auto-vacuum and auto-analyze if track_io_timing is
-
-
-
-
-Make the archiver process visible in pg_stat_activity (Kyotaro Horiguchi)
-
-
-
-
-
-
-
-Improve pg_stat_activity reporting for walsender processes (Tom Lane)
-
-
-
-Previously only SQL commands were reported.
-
-
-
-Add system view pg_stat_wal which reports WAL activity (Masahiro Ikeda)
+Add session statistics to the pg_stat_database system view (Laurenz Albe)
+
+
+
+
+
+
+
+Add columns to pg_prepared_statements to report generic and custom plan counts (Atsushi Torikoshi, Kyotaro Horiguchi)
@@ -1133,12 +1215,16 @@ Add lock wait time to pg_locks (Atsushi Torikoshi)
-Add session statistics to the pg_stat_database system view (Laurenz Albe)
+Add system view pg_stat_wal which reports WAL activity (Masahiro Ikeda)
@@ -1165,25 +1251,27 @@ Function pg_stat_reset_replication_slot() resets slot statistics.
-Add system view pg_backend_memory_contexts to report session memory usage (Atsushi Torikoshi, Fujii Masao)
+Improve pg_stat_activity reporting of walsender processes (Tom Lane)
+
+
+
+Previously only SQL commands were reported.
-Add columns to pg_prepared_statements to report generic and custom plan counts (Atsushi Torikoshi, Kyotaro Horiguchi)
+Make the archiver process visible in pg_stat_activity (Kyotaro Horiguchi)
@@ -1233,17 +1321,6 @@ The new pg_hba.conf keyword "clientname=DN" allows comparison with certificate a
-
-
-
-
-Allow passwords of an arbitrary length (Tom Lane, Nathan Bossart)
-
-
-
+
+
+Allow the specification of a certificate revocation list (CRL) directory (Kyotaro Horiguchi)
+
+
+
+This is controlled by server variable ssl_crl_dir and libpq connection option sslcrldir. Previously only CRL files could be specified.
+
+
+
+
+
+
+
+Allow passwords of an arbitrary length (Tom Lane, Nathan Bossart)
+
@@ -1300,85 +1403,12 @@ The previous default was 0.5.
-Reduce the default value of vacuum_cost_page_miss (Peter Geoghegan)
-
-
-
-This new default better reflects current hardware capabilities.
-
-
-
-
-
-
-
-Add Set Server Name Indication (SNI) for SSL connection packets (Peter Eisentraut)
-
-
-
-This can be disabled by turning client option "sslsni" off.
-
-
-
-
-
-
-
-Allow the specification of a certificate revocation list (CRL) directory (Kyotaro Horiguchi)
-
-
-
-This is controlled by server variable ssl_crl_dir and libpq connection option sslcrldir. Previously only CRL files could be specified.
-
-
-
-
-
-
-
-Add server variable log_recovery_conflict_waits to report long recovery conflict wait times (Bertrand Drouvot, Masahiko Sawada)
-
-
-
-
-
-
-
-Add new server-side variable in_hot_standby (Haribabu Kommi, Greg Nancarrow, Tom Lane)
-
-
-
-
-
-
-
-Allow restore_command setting to be changed during a server reload (Sergei Kornilov)
-
-
-
-You can also set restore_command to an empty string and reload to force recovery to only read from the pg_wal directory.
+Add %P to log_line_prefix to report the parallel group leader (Justin Pryzby)
@@ -1397,32 +1427,6 @@ Previously all the paths had to be in a single quoted string.
-
-
-
-
-Add %P to log_line_prefix to report the parallel group leader (Justin Pryzby)
-
-
-
-
-
-
-
-Increase warning time and hard limit before transaction id and multi-transaction wraparound (Noah Misch)
-
-
-
-This should reduce the possibility of failures that occur without having issued warnings about wraparound.
-
-
-
-Allow control over whether logical decoding messages are sent to the replication stream (David Pirotte, Euler Taveira)
+Allow standby servers to be rewound via pg_rewind (Heikki Linnakangas)
+
+
+
+
+
+
+
+Allow restore_command setting to be changed during a server reload (Sergei Kornilov)
+
+
+
+You can also set restore_command to an empty string and reload to force recovery to only read from the pg_wal directory.
+
+
+
+
+
+
+
+Add server variable log_recovery_conflict_waits to report long recovery conflict wait times (Bertrand Drouvot, Masahiko Sawada)
+
+
+
+
+
+
+
+Pause recovery if the primary changes its parameters in a way that prevents replay on the hot standby (Peter Eisentraut)
+
+
+
+Previously the standby would shut down immediately.
+
+
+
+
+
+
+
+Add function pg_get_wal_replay_pause_state() to report the recovery state (Dilip Kumar)
+
+
+
+It gives more detailed information than pg_is_wal_replay_paused(), which still exists.
+
+
+
+
+
+
+
+Add new server-side variable in_hot_standby (Haribabu Kommi, Greg Nancarrow, Tom Lane)
-Allow logical decoding to be filtered by xid (Markus Wanner)
+Speed truncation of small tables during recovery on clusters with a large number of shared buffers (Kirk Jamison)
@@ -1501,12 +1574,38 @@ This allows for faster recovery on systems with many database files.
-Allow multiple transactions during table sync in logical replication (Peter Smith, Amit Kapila, and Takamichi Osumi)
+Add function pg_xact_commit_timestamp_origin() to return the commit timestamp and replication origin of the specified transaction (Movead Li)
+
+
+
+
+
+
+
+Add the replication origin to the record returned by pg_last_committed_xact() (Movead Li)
+
+
+
+
+
+
+
+Allow replication origin functions to be controlled using standard function permission controls (Martín Marqués)
+
+
+
+Previously these functions could only be executed by super-users, and this is still the default.
@@ -1526,16 +1625,12 @@ GENERAL ENOUGH?
-
-
+
-
-Allow standby servers to be rewound via pg_rewind (Heikki Linnakangas)
-
-
+
+ Logical Replication
+
+
-
-
-Immediately WAL-log subtransaction and top-level XID association (Tomas Vondra, Dilip Kumar, Amit Kapila)
-
-
-
-This is useful for logical decoding.
-
-
-
-
-
-
-
-Allow logical replication subscriptions to use binary transfer mode (Dave Cramer)
-
-
-
-This is faster than text mode, but slightly less robust.
-
-
-
-
-
-
-
-Add the replication origin to the record returned by pg_last_committed_xact() (Movead Li)
-
-
-
-
-
-
-
-Add function pg_xact_commit_timestamp_origin() to return the commit timestamp and replication origin of the specified transaction (Movead Li)
-
-
-
-
-
-
-
-Allow replication origin functions to be controlled using standard function permission controls (Martín Marqués)
-
-
-
-Previously these functions could only be executed by super-users, and this is still the default.
-
-
-
-
-
-
-
-Generate WAL invalidations message during command completion when using logical replication (Dilip Kumar, Tomas Vondra, Amit Kapila)
-
-
-
-When logical replication is disabled, WAL invalidation messages are generated at transaction completion. This allows logical streaming of in-progress transactions.
-
-
-
-Pause recovery if the primary changes its parameters in a way that prevents replay on the hot standby (Peter Eisentraut)
+Allow multiple transactions during table sync in logical replication (Peter Smith, Amit Kapila, and Takamichi Osumi)
+
+
+
+
+
+
+
+Immediately WAL-log subtransaction and top-level XID association (Tomas Vondra, Dilip Kumar, Amit Kapila)
-Previously the standby would shut down immediately.
+This is useful for logical decoding.
@@ -1689,6 +1713,21 @@ This is controlled via pg_create_logical_replication_slot().
+
+
+
+
+Generate WAL invalidations message during command completion when using logical replication (Dilip Kumar, Tomas Vondra, Amit Kapila)
+
+
+
+When logical replication is disabled, WAL invalidation messages are generated at transaction completion. This allows logical streaming of in-progress transactions.
+
+
+
-Add function pg_get_wal_replay_pause_state() to report the recovery state (Dilip Kumar)
-
-
-
-It gives more detailed information than pg_is_wal_replay_paused(), which still exists.
+Allow control over whether logical decoding messages are sent to the replication stream (David Pirotte, Euler Taveira)
-
+
+
+
+
+Allow logical replication subscriptions to use binary transfer mode (Dave Cramer)
+
+
+
+This is faster than text mode, but slightly less robust.
+
+
+
+
+
+
+
+Allow logical decoding to be filtered by xid (Markus Wanner)
+
+
+
+
+
@@ -1731,30 +1793,15 @@ It gives more detailed information than pg_is_wal_replay_paused(), which still e
-Allow the WHERE clause of ON CONFLICT to be table-qualified (Tom Lane)
+Reduce the number of keywords that can't be used as column labels without "AS" (Mark Dilger)
-Only the target table can be referenced.
-
-
-
-
-
-
-
-Allow hash lookup of IN clause with many constants (James Coleman, David Rowley)
-
-
-
-Previously the only option was to sequentially scan the list of constants.
+There are now 90% fewer restricted keywords.
@@ -1788,6 +1835,21 @@ For example, GROUP BY CUBE (a,b), CUBE (b,c) will generate duplicate grouping co
+
+
+
+
+Properly handle DEFAULT values for columns in multi-column inserts (Dean Rasheed)
+
+
+
+This used to throw an error.
+
+
+
-Properly handle DEFAULT values for columns in multi-column inserts (Dean Rasheed)
+Allow the WHERE clause of ON CONFLICT to be table-qualified (Tom Lane)
-This used to throw an error.
-
-
-
-
-
-
-
-Reduce the number of keywords that can't be used as column labels without "AS" (Mark Dilger)
-
-
-
-There are now 90% fewer restricted keywords.
+Only the target table can be referenced.
@@ -1844,6 +1891,110 @@ There are now 90% fewer restricted keywords.
+
+
+
+
+Allow REFRESH MATERIALIZED VIEW to use parallelism (Bharath Rupireddy)
+
+
+
+
+
+
+
+Allow REINDEX to change the tablespace of the new index (Alexey Kondratov, Michael Paquier, Justin Pryzby)
+
+
+
+This is done by specifying a TABLESPACE clause.
+
+
+
+
+
+
+
+Allow REINDEX to process all child tables or indexes of a partitioned relation (Justin Pryzby, Michael Paquier)
+
+
+
+
+
+
+
+Improve the performance of COPY FROM in binary mode (Bharath Rupireddy, Amit Langote)
+
+
+
+
+
+
+
+Preserve SQL standard syntax in view definitions, if possible (Tom Lane)
+
+
+
+Previously non-function call SQL standard syntax, e.g. EXTRACT, were converted to non-SQL standard function calls.
+
+
+
+
+
+
+
+Add the SQL-standard clause GRANTED BY to GRANT and REVOKE (Peter Eisentraut)
+
+
+
+
+
+
+
+Add OR REPLACE for CREATE TRIGGER (Takamichi Osumi)
+
+
+
+This allows pre-existing triggers to be conditionally replaced.
+
+
+
+
+
+
+
+Allow control over whether foreign servers keep connections open after transaction completion (Bharath Rupireddy)
+
+
+
+This is controlled by keep_connections and defaults to on.
+
+
+
-
-
-Allow control over whether foreign servers keep connections open after transaction completion (Bharath Rupireddy)
-
-
-
-This is controlled by keep_connections and defaults to on.
-
-
-
-
-
-
-
-Allow REFRESH MATERIALIZED VIEW to use parallelism (Bharath Rupireddy)
-
-
-
-
-
-
-
-Add ability to skip vacuuming of TOAST tables (Nathan Bossart)
-
-
-
-VACUUM now has a PROCESS_TOAST which can be set to false to disable TOAST processing, and vacuumdb has a --no-process-toast option.
-
-
-
-
-
-
-
-Allow REINDEX to change the tablespace of the new index (Alexey Kondratov, Michael Paquier, Justin Pryzby)
-
-
-
-This is done by specifying a TABLESPACE clause.
-
-
-
-
-
-Add the SQL-standard clause GRANTED BY to GRANT and REVOKE (Peter Eisentraut)
-
-
-
-
-
-
-
-Fix EXPLAIN CREATE TABLE AS and EXPLAIN CREATE MATERIALIZED VIEW to honor IF NOT EXISTS (Bharath Rupireddy)
-
-
-
-Previously, if the object already exists, EXPLAIN would fail.
-
-
-
-
-
-
-
-Add OR REPLACE for CREATE TRIGGER (Takamichi Osumi)
-
-
-
-This allows pre-existing triggers to be conditionally replaced.
-
-
-
-
-
-
-
-Preserve SQL standard syntax in view definitions, if possible (Tom Lane)
-
-
-
-Previously non-function call SQL standard syntax, e.g. EXTRACT, were converted to non-SQL standard function calls.
-
-
-
-
-
-Allow REINDEX to process all child tables or indexes of a partitioned relation (Justin Pryzby, Michael Paquier)
-
-
-
-
-
-
-
-Improve the performance of COPY FROM in binary mode (Bharath Rupireddy, Amit Langote)
-
@@ -2045,17 +2062,6 @@ Improve the performance of COPY FROM in binary mode (Bharath Rupireddy, Amit Lan
-
-
-
-
-Create composite array types for most system relations (Wenjing Zeng)
-
-
-
-Improve the accuracy of floating point computations involving infinity (Tom Lane)
+Add support for the stemming of languages Armenian, Basque, Catalan, Hindi, Serbian, and Yiddish (Peter Eisentraut)
@@ -2136,37 +2145,11 @@ Floating point data types already supported these.
-Allow binary data transfer to be more forgiving of array and record OID mismatches (Tom Lane)
-
-
-
-
-
-
-
-Add operators to add and subtract LSN and numeric (byte) values (Fujii Masao)
-
-
-
-
-
-
-
-Add support for the stemming of languages Armenian, Basque, Catalan, Hindi, Serbian, and Yiddish (Peter Eisentraut)
+Improve the accuracy of floating point computations involving infinity (Tom Lane)
@@ -2198,6 +2181,39 @@ Cause floating-point division of NaN by zero to return NaN (Tom Lane)
Previously this returned an error. Division with Numerics always returned NaN.
+
+
+
+
+
+
+Add operators to add and subtract LSN and numeric (byte) values (Fujii Masao)
+
+
+
+
+
+
+
+Allow binary data transfer to be more forgiving of array and record OID mismatches (Tom Lane)
+
+
+
+
+
+
+
+Create composite array types for most system relations (Wenjing Zeng)
+
@@ -2209,36 +2225,6 @@ Previously this returned an error. Division with Numerics always returned NaN.
-
-
-
-
-Change pg_describe_object(), pg_identify_object(), and pg_identify_object_as_address() to always report helpful error messages for non-existent objects (Michael Paquier)
-
-
-
-
-
-
-
-Cause exp() and power() for negative-infinity exponents to return zero (Tom Lane)
-
-
-
-Previously they often returned underflow errors.
-
-
-
-
-
-Add unistr() function to allow Unicode characters to be specified as backslash-hex escapes in strings (Pavel Stehule)
-
-
-
-This is similar to how Unicode can be specified in literal string.
-
-
-
-
-
-Add date_bin function (John Naylor)
-
-
-
-The function date_bin "bins" the input timestamp into a specified interval aligned with a specified origin.
-
-
-
-
-
-
-
-Add function bit_count() to return the number of bits set in a bit or byte string (David Fetter)
-
-
-
-
-
-
-
-Mark pg_stat_get_subscription() as returning a set (Tom Lane)
-
-
-
-While it worked in previous releases, it didn't report proper optimizer statistics and couldn't be used in the target list.
-
-
-
-
-
-
-
-Add bit_xor XOR aggregate function (Alexey Bashtanov)
-
-
-
-
-
-
-
-Add SQL-standard trim_array() function (Vik Fearing)
-
-
-
-This can already be done with array slices.
-
-
-
-
-
-
-
-Allow efficient heap scanning of a range of tids (Edmund Horner, David Rowley)
-
-
-
-Previously a sequential scan was required for non-equality tid specifications.
-
-
-
-
-
-
-
-Add [[:word:]] as a character class to match \w (Tom Lane)
-
-
-
-
-
-
-
-Allow complemented character class escapes \D, \S, and \W within regex brackets (Tom Lane)
+Allow procedures to have OUT parameters (Peter Eisentraut)
@@ -2397,22 +2275,41 @@ JSONB subscripting can be used to extract from and assign to JSONB documents. E
-Add bytea equivalents of ltrim() and rtrim() (Joel Jacobson)
+Allow some array functions to operate on a mix of compatible data types (Tom Lane)
+
+
+
+The functions are array_append() array_prepend(), array_cat(), array_position(), array_positions(), array_remove(), array_replace(), and width_bucket(). Previously only identical data types could be used.
-Prevent inet_server_addr() and inet_server_port() from being run by parallel workers (Masahiko Sawada)
+Add SQL-standard trim_array() function (Vik Fearing)
+
+
+
+This can already be done with array slices.
+
+
+
+
+
+
+
+Add bytea equivalents of ltrim() and rtrim() (Joel Jacobson)
@@ -2434,39 +2331,69 @@ Negative values start from the last field and count backward.
-Allow some array functions to operate on a mix of compatible data types (Tom Lane)
+A string_to_table() function to split a string on delimiters (Pavel Stehule)
-The functions are array_append() array_prepend(), array_cat(), array_position(), array_positions(), array_remove(), array_replace(), and width_bucket(). Previously only identical data types could be used.
-
-
-
-
-
-
-
-Allow more flexible data types for default values of lead() and lag() window functions (Vik Fearing)
+This is similar to the regexp_split_to_table() function.
-Allow procedures to have OUT parameters (Peter Eisentraut)
+Add unistr() function to allow Unicode characters to be specified as backslash-hex escapes in strings (Pavel Stehule)
+
+
+
+This is similar to how Unicode can be specified in literal string.
+
+
+
+
+
+
+
+Add bit_xor XOR aggregate function (Alexey Bashtanov)
+
+
+
+
+
+
+
+Add function bit_count() to return the number of bits set in a bit or byte string (David Fetter)
+
+
+
+
+
+
+
+Add date_bin function (John Naylor)
+
+
+
+The function date_bin "bins" the input timestamp into a specified interval aligned with a specified origin.
@@ -2487,16 +2414,68 @@ They are interpreted as BC years.
-A string_to_table() function to split a string on delimiters (Pavel Stehule)
+Add newer regular expression substring() syntax (Peter Eisentraut)
-This is similar to the regexp_split_to_table() function.
+The new syntax is SUBSTRING(text SIMILAR pattern ESCAPE escapechar). The previous standard syntax was SUBSTRING(text FROM pattern FOR escapechar), and is still supported by Postgres.
+
+
+
+
+
+
+
+Allow complemented character class escapes \D, \S, and \W within regex brackets (Tom Lane)
+
+
+
+
+
+
+
+Add [[:word:]] as a character class to match \w (Tom Lane)
+
+
+
+
+
+
+
+Allow more flexible data types for default values of lead() and lag() window functions (Vik Fearing)
+
+
+
+
+
+
+
+Cause exp() and power() for negative-infinity exponents to return zero (Tom Lane)
+
+
+
+Previously they often returned underflow errors.
@@ -2517,16 +2496,38 @@ This allows more use of functions that require type conversion in security-sensi
-Add newer regular expression substring() syntax (Peter Eisentraut)
+Mark pg_stat_get_subscription() as returning a set (Tom Lane)
-The new syntax is SUBSTRING(text SIMILAR pattern ESCAPE escapechar). The previous standard syntax was SUBSTRING(text FROM pattern FOR escapechar), and is still supported by Postgres.
+While it worked in previous releases, it didn't report proper optimizer statistics and couldn't be used in the target list.
+
+
+
+
+
+
+
+Prevent inet_server_addr() and inet_server_port() from being run by parallel workers (Masahiko Sawada)
+
+
+
+
+
+
+
+Change pg_describe_object(), pg_identify_object(), and pg_identify_object_as_address() to always report helpful error messages for non-existent objects (Michael Paquier)
@@ -2539,17 +2540,6 @@ The new syntax is SUBSTRING(text SIMILAR pattern ESCAPE escapechar). The previo
-
-
-
-
-Improve performance of repeated CALLs within plpgsql procedures (Pavel Stehule, Tom Lane)
-
-
-
+
+
+Improve performance of repeated CALLs within plpgsql procedures (Pavel Stehule, Tom Lane)
+
@@ -2585,32 +2586,6 @@ Allow plpgsql's RETURN QUERY to execute its query using parallelism (Tom Lane)
-
-
-
-
-Improve the output format of libpq's PQtrace() (Aya Iwata)
-
-
-
-
-
-
-
-Allow an ECPG SQL identifier to be linked to a specific connection (Hayato Kuroda)
-
-
-
-This is done via DECLARE ... STATEMENT.
-
-
-
+
+
+Improve the output format of libpq's PQtrace() (Aya Iwata)
+
+
+
+
+
+Allow an ECPG SQL identifier to be linked to a specific connection (Hayato Kuroda)
+
+
+
+This is done via DECLARE ... STATEMENT.
+
@@ -2667,36 +2668,6 @@ The previous limit was 255 bytes.
-
-
-
-
-Allow vacuumdb to skip index cleanup and truncation (Nathan Bossart)
-
-
-
-The options are --no-index-cleanup and --no-truncate.
-
-
-
-
-
-
-
-Allow multiple verbose option specifications (-v) to increase the logging verbosity (Tom Lane)
-
-
-
-This is now supported by pg_dump, pg_dumpall, and pg_restore.
-
-
-
-Fix psql's \dT to understand array syntax and backend grammar aliases, like "int" for "integer" (Greg Sabino Mullane, Tom Lane)
-
-
-
-
-
-
-
-Allow psql's \df and \do commands to specify function and operator argument types (Greg Sabino Mullane, Tom Lane)
+Allow vacuumdb to skip index cleanup and truncation (Nathan Bossart)
-This helps reduce the number of matches for overloaded entries.
-
-
-
-
-
-
-
-When editing the previous query or a file with psql's \e, or using \ef and \ev, ignore the contents if the editor exits without saving (Laurenz Albe)
-
-
-
-Previously, such edits would still execute the editor contents.
+The options are --no-index-cleanup and --no-truncate.
@@ -2777,12 +2715,60 @@ This is controlled by option --extension.
-Add psql command \dX to list extended statistics objects (Tatsuro Yamada)
+Add pgbench permute() function to randomly shuffle values (Fabien Coelho, Hironobu Suzuki, Dean Rasheed)
+
+
+
+
+
+
+
+Allow multiple verbose option specifications (-v) to increase the logging verbosity (Tom Lane)
+
+
+
+This is now supported by pg_dump, pg_dumpall, and pg_restore.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Allow psql's \df and \do commands to specify function and operator argument types (Greg Sabino Mullane, Tom Lane)
+
+
+
+This helps reduce the number of matches for overloaded entries.
+
+
+
+
+
+
+
+Add an access method column to psql's \d[i|m|t]+ output (Georgios Kokolatos)
@@ -2797,6 +2783,43 @@ Allow psql's \dt and \di to show TOAST tables and their indexes (Justin Pryzby)
+
+
+
+
+Add psql command \dX to list extended statistics objects (Tatsuro Yamada)
+
+
+
+
+
+
+
+Fix psql's \dT to understand array syntax and backend grammar aliases, like "int" for "integer" (Greg Sabino Mullane, Tom Lane)
+
+
+
+
+
+
+
+When editing the previous query or a file with psql's \e, or using \ef and \ev, ignore the contents if the editor exits without saving (Laurenz Albe)
+
+
+
+Previously, such edits would still execute the editor contents.
+
+
+
-
-
-Add an access method column to psql's \d[i|m|t]+ output (Georgios Kokolatos)
-
-
-
-
-
-Add pgbench permute() function to randomly shuffle values (Fabien Coelho, Hironobu Suzuki, Dean Rasheed)
-
@@ -2923,21 +2915,6 @@ This removes the server start instructions that are normally output.
-
-
-
-
-Remove support for the postmaster -o option (Magnus Hagander)
-
-
-
-This option was unnecessary since all passed options could already be specified directly.
-
-
-
+
+
+Remove support for the postmaster -o option (Magnus Hagander)
+
+
+
+This option was unnecessary since all passed options could already be specified directly.
+
@@ -3014,12 +3006,46 @@ The option --with-openssl is kept for compatibility.
-Add direct conversion routines between EUC_TW and Big5 (Heikki Linnakangas)
+Add support for abstract Unix-domain sockets (Peter Eisentraut)
+
+
+
+This is currently supported on Linux and Windows.
+
+
+
+
+
+
+
+Add debug_invalidate_system_caches_always to control cache overwriting (Craig Ringer)
+
+
+
+Previously this could only be controlled at compile time and is enabled only in assert builds.
+
+
+
+
+
+
+
+Various improvements in valgrind detection (Álvaro Herrera, Peter Geoghegan)
@@ -3036,16 +3062,12 @@ Add a test module for the regular expression package (Tom Lane)
-Add debug_invalidate_system_caches_always to control cache overwriting (Craig Ringer)
-
-
-
-Previously this could only be controlled at compile time and is enabled only in assert builds.
+Add support for LLVM 12 (Andres Freund)
@@ -3070,21 +3092,6 @@ This is more modern and supports FIPS mode.
-
-
-
-
-Add support for abstract Unix-domain sockets (Peter Eisentraut)
-
-
-
-This is currently supported on Linux and Windows.
-
-
-
+
+
+Add direct conversion routines between EUC_TW and Big5 (Heikki Linnakangas)
+
+
+
-
-
-Add support for LLVM 12 (Andres Freund)
-
-
-
-
-
-Various improvements in valgrind detection (Álvaro Herrera, Peter Geoghegan)
-
@@ -3191,111 +3183,13 @@ Previously, when tracking all statements, identical top and nested statements we
-
-
-Allow postgres_fdw to import table partitions if specified by IMPORT FOREIGN SCHEMA ... LIMIT TO (Matthias van de Meent)
-
-
-
-By default, only the root of partitioned tables is imported.
-
-
-
-
-
-Add postgres_fdw functions to discard cached connections (Bharath Rupireddy)
-
-
-
-
-
-
-
-Allow postgres_fdw to INSERT rows in bulk (Takayuki Tsunakawa, Tomas Vondra, Amit Langote)
-
-
-
-
-
-
-
-Add postgres_fdw function postgres_fdw_get_connections to report open foreign server connections (Bharath Rupireddy)
-
-
-
-
-
-
-
-Allow postgres_fdw to reestablish foreign server connections if necessary (Bharath Rupireddy)
-
-
-
-Previously foreign server restarts could cause foreign table access errors.
-
-
-
-
-
-
-
-Allow the cube data type to be transferred in binary mode (KaiGai Kohei)
-
-
-
-
-
-
-
-Change pageinspect block numbers to be bigints (Peter Eisentraut)
-
-
-
-
-
-
-
-Allow pageinspect to inspect GiST indexes (Andrey Borodin, Heikki Linnakangas)
-
-
-
-
-
-
-
-Allow subscripting of hstore values (Tom Lane, Dmitry Dolgov)
+Add row counts for utility commands to pg_stat_statements (Fujii Masao, Katsuragi Yuta, Seino Yuki)
@@ -3312,6 +3206,17 @@ Add pg_stat_statements_info system view to show pg_stat_statements activity (Kat
+
+
+
+
+Allow subscripting of hstore values (Tom Lane, Dmitry Dolgov)
+
+
+
-Allow amcheck to also check heap pages (Mark Dilger)
-
-
-
-Previously it only checked B-Tree index pages.
-
-
-
-
-
-
-
-Add contrib module old_snapshot to report the XID/time mapping used by an active old_snapshot_threshold (Robert Haas)
+Allow the cube data type to be transferred in binary mode (KaiGai Kohei)
@@ -3370,25 +3260,49 @@ This is useful for correcting database corruption.
-Add row counts for utility commands to pg_stat_statements (Fujii Masao, Katsuragi Yuta, Seino Yuki)
+Add contrib module old_snapshot to report the XID/time mapping used by an active old_snapshot_threshold (Robert Haas)
-Mark btree_gist functions as parallel safe (Steven Winfield)
+Allow amcheck to also check heap pages (Mark Dilger)
+
+
+
+Previously it only checked B-Tree index pages.
+
+
+
+
+
+
+
+Allow pageinspect to inspect GiST indexes (Andrey Borodin, Heikki Linnakangas)
+
+
+
+
+
+
+
+Change pageinspect block numbers to be bigints (Peter Eisentraut)
@@ -3401,10 +3315,97 @@ Author: Peter Eisentraut
Allow pgstattuple_approx() to report on TOAST tables (Peter Eisentraut)
+
+
+
+
+
+
+Mark btree_gist functions as parallel safe (Steven Winfield)
+
+
+ Postgres_fdw
+
+
+
+
+
+
+
+Allow postgres_fdw to INSERT rows in bulk (Takayuki Tsunakawa, Tomas Vondra, Amit Langote)
+
+
+
+
+
+
+
+Allow postgres_fdw to import table partitions if specified by IMPORT FOREIGN SCHEMA ... LIMIT TO (Matthias van de Meent)
+
+
+
+By default, only the root of partitioned tables is imported.
+
+
+
+
+
+
+
+Add postgres_fdw function postgres_fdw_get_connections to report open foreign server connections (Bharath Rupireddy)
+
+
+
+
+
+
+
+Add postgres_fdw functions to discard cached connections (Bharath Rupireddy)
+
+
+
+
+
+
+
+Allow postgres_fdw to reestablish foreign server connections if necessary (Bharath Rupireddy)
+
+
+
+Previously foreign server restarts could cause foreign table access errors.
+
+
+
+
+
+
+