From: Bruce Momjian Date: Sat, 20 Apr 2013 20:50:56 +0000 (-0400) Subject: Reorder some 9.3 release item entries X-Git-Tag: REL9_3_BETA1~78 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=61b962345dd87276452922a5dbc21836266b43e0;p=postgresql Reorder some 9.3 release item entries More to go. --- diff --git a/doc/src/sgml/release-9.3.sgml b/doc/src/sgml/release-9.3.sgml index a30a85603d..933c56cfbc 100644 --- a/doc/src/sgml/release-9.3.sgml +++ b/doc/src/sgml/release-9.3.sgml @@ -60,79 +60,59 @@ Server - Performance + Locking - Improve performance of NUMERIC calculations (Kyotaro Horiguchi) - - - - - - Use a binary heap for Merge-Append operations (Abhijit Menon-Sen) + Prevent non-key-field row updates from locking foreign key rows + (AlvaroAacute;lvaro Herrera, Marti Raudsepp, Alexander Shulgin, + Noah Misch and Andres Freund) - - - Add COPY FREEZE option to avoid the overhead of later marking - tuples as committed (Simon Riggs, Jeff Davis) + This improves concurrency and reduces the probability of deadlocks. + UPDATEs on non-key columns use the new SELECT FOR NO KEY UPDATE lock + type, and foreign key checks use the new SELECT FOR KEY SHARE lock mode. - Improve memory usage for in-memory sorts (Jeff Janes) + Add cache of local locks (Jeff Janes) - Users who have set work_mem based on the previous behavior should - revisit that setting. + This speeds lock release at statement completion in transactions + that hold many locks; it is particularly useful for pg_dump. - - - Improve performance for transactions creating, rebuilding, or - dropping many relations (Jeff Janes, Tomas Vondra) - - + - - - Improve performance of the CREATE TABLE ... ON COMMIT DELETE ROWS - clause by only issuing delete if the temporary table was accessed - (Heikki Linnakangas) - - + + + + Indexes + + - Allow heap-only tuple updates on system tables (Andres Freund) + Add SP-GiST support for range data types (Alexander Korotkov) - Have vacuum recheck visibility after it has removed expired tuples - (Pavan Deolasee) - - - - This increases the chance of a page being marked as all-visible. + Allow unlogged GiST indexes (Jeevan Chalke) - Split pgstat file in per-database and global files (Tomas Vondra) - - - - This reduces the statistics management read and write overhead. + Improve concurrency of hash indexes (Robert Haas) @@ -147,8 +127,8 @@ - Reduce optimizer overhead by discarding plans with unneeded cheaper - startup costs (Tom Lane) + Improve the ability to detect indexable prefixes in regular + expressions (Tom Lane) @@ -161,8 +141,8 @@ - Improve the ability to detect indexable prefixes in regular - expressions (Tom Lane) + Reduce optimizer overhead by discarding plans with unneeded cheaper + startup costs (Tom Lane) @@ -177,72 +157,79 @@ - Indexes + General Performance - Reduce use of heavyweight locking inside hash AM. + Add COPY FREEZE option to avoid the overhead of later marking + tuples as committed (Simon Riggs, Jeff Davis) - Improve concurrency of hash indexes (Robert Haas) + Improve performance of NUMERIC calculations (Kyotaro Horiguchi) - Add SP-GiST support for range data types (Alexander Korotkov) + Use a binary heap for Merge-Append operations (Abhijit Menon-Sen) - Allow unlogged GiST indexes (Jeevan Chalke) + Improve memory usage for in-memory sorts (Jeff Janes) + + + + Users who have set work_mem based on the previous behavior should + revisit that setting. - Allow SP-GiST to support of the range adjacent operator (Alexander - Korotkov) + Improve performance for transactions creating, rebuilding, or + dropping many relations (Jeff Janes, Tomas Vondra) - - - - - - Locking + + + Improve performance of the CREATE TABLE ... ON COMMIT DELETE ROWS + clause by only issuing delete if the temporary table was accessed + (Heikki Linnakangas) + + - + + + Allow heap-only tuple updates on system tables (Andres Freund) + + - Prevent non-key-field row updates from locking foreign key rows - (AlvaroAacute;lvaro Herrera, Marti Raudsepp, Alexander Shulgin, - Noah Misch and Andres Freund) + Have vacuum recheck visibility after it has removed expired tuples + (Pavan Deolasee) - This improves concurrency and reduces the probability of deadlocks. - UPDATEs on non-key columns use the new SELECT FOR NO KEY UPDATE lock - type, and foreign key checks use the new SELECT FOR KEY SHARE lock mode. + This increases the chance of a page being marked as all-visible. - Add cache of local locks (Jeff Janes) + Split pgstat file in per-database and global files (Tomas Vondra) - This speeds lock release at statement completion in transactions - that hold many locks; it is particularly useful for pg_dump. + This reduces the statistics management read and write overhead. @@ -251,42 +238,52 @@ - Authentication + Monitoring - Improve LDAP error reporting and documentation (Peter Eisentraut) + Add optional ability to checksum data pages and report corruption + (Simon Riggs, Jeff Davis, Greg Smith) + + + + The checksum option can be set during initdb. - Add support for LDAP authentication to be specified in URL format - (Peter Eisentraut) + Allow pg_terminate_backend() to terminate other backends with + the same role (Dan Farina) + + + + Previously, only superusers could terminate other sessions. - Change the ssl_ciphers parameter to start with DEFAULT, rather - than ALL, then remove insecure ciphers (Magnus Hagander) + Allow the statistics collector to operate properly in cases where + the system clock goes backwards (Tom Lane) - It is assumed DEFAULT is more appropriate cipher set. + Previously statistics collection would stop until the time again + reached the previously-stored latest time. - Parse/load pg_ident.conf once, not during each connection (Amit - Kapila) + Add function to report the size of the GIN pending index insertion + list (Fujii Masao) - This is similar to how pg_hba.conf is processed. + The function is pgstatginindex() in pgstattuple. @@ -295,52 +292,42 @@ - Monitoring + Authentication - Allow the statistics collector to operate properly in cases where - the system clock goes backwards (Tom Lane) - - - - Previously statistics collection would stop until the time again - reached the previously-stored latest time. + Improve LDAP error reporting and documentation (Peter Eisentraut) - Add optional ability to checksum data pages and report corruption - (Simon Riggs, Jeff Davis, Greg Smith) - - - - The checksum option can be set during initdb. + Add support for LDAP authentication to be specified in URL format + (Peter Eisentraut) - Add function to report the size of the GIN pending index insertion - list (Fujii Masao) + Change the ssl_ciphers parameter to start with DEFAULT, rather + than ALL, then remove insecure ciphers (Magnus Hagander) - The function is pgstatginindex() in pgstattuple. + It is assumed DEFAULT is more appropriate cipher set. - Allow pg_terminate_backend() to terminate other backends with - the same role (Dan Farina) + Parse/load pg_ident.conf once, not during each connection (Amit + Kapila) - Previously, only superusers could terminate other sessions. + This is similar to how pg_hba.conf is processed. @@ -367,44 +354,43 @@ - Increase the maximum initdb-configured value for shared_buffers - to 128MB (Robert Haas) + Allow the postmaster to listen on multiple Unix-domain sockets + (Honza Horak) - This is the maximum value initdb attempts to set in - postgresql.conf; the previous value was 32MB. + This renames configuration parameter unix_socket_directory to + unix_socket_directories, which accepts a list of directories. - Allow a directory of configuration files to be processed (Magnus - Hagander, Greg Smith, Selena Deckelmann) + Add configuration variable lock_timeout to limit lock wait duration + (Zoltán Böszörményi) + + - The directory is specified as include_dir in server configuration file. + Allow a directory of configuration files to be processed (Magnus + Hagander, Greg Smith, Selena Deckelmann) - - - Have "session id" in log_line_prefix (%c) always output four hex - digits after the period (Bruce Momjian) + The directory is specified as include_dir in server configuration file. - Add configuration variable lock_timeout to limit lock wait duration - (Zoltán Böszörményi) + Increase the maximum initdb-configured value for shared_buffers + to 128MB (Robert Haas) - - - Remove the external PID file on postmaster exit (Peter Eisentraut) + This is the maximum value initdb attempts to set in + postgresql.conf; the previous value was 32MB. @@ -427,15 +413,17 @@ + - Allow the postmaster to listen on multiple Unix-domain sockets - (Honza Horak) + Remove the external PID file on postmaster exit (Peter Eisentraut) + + - This renames configuration parameter unix_socket_directory to - unix_socket_directories, which accepts a list of directories. + Have "session id" in log_line_prefix (%c) always output four hex + digits after the period (Bruce Momjian) COMPATIBILITY @@ -450,6 +438,18 @@ + + + Allow a streaming replication standbys to follow a timeline switch (Heikki Linnakangas) + + + + This allows streaming standbys to feed from newly-promoted slaves. + Previously slaves required access to a WAL archive directory to + accomplish this. + + + Add SQL functions pg_backup_in_progress() and pg_backup_start_time() (Darold Gilles) @@ -485,18 +485,6 @@ - - - Allow a streaming replication standbys to follow a timeline switch (Heikki Linnakangas) - - - - This allows streaming standbys to feed from newly-promoted slaves. - Previously slaves required access to a WAL archive directory to - accomplish this. - - - Have pg_basebackup --write-recovery-conf output a minimal @@ -678,6 +666,37 @@ + + <link linkend="SQL-CREATETABLE"><command>CREATE TABLE</></link> + + + + + + No longer output messages about implicit index and sequence creation (Robert Haas) + + + + These messages now appear with DEBUG1-level output. + + + + + + Allow CREATE TABLE to succeed for a non-existent schema + (Bruce Momjian) + + + + Previously, CREATE TABLE IF EXIST threw an error if the schema was + nonexistent. + + + + + + + Constraints @@ -822,37 +841,6 @@ - - <link linkend="SQL-CREATETABLE"><command>CREATE TABLE</></link> - - - - - - No longer output messages about implicit index and sequence creation (Robert Haas) - - - - These messages now appear with DEBUG1-level output. - - - - - - Allow CREATE TABLE to succeed for a non-existent schema - (Bruce Momjian) - - - - Previously, CREATE TABLE IF EXIST threw an error if the schema was - nonexistent. - - - - - - - @@ -1698,7 +1686,7 @@ - Allow pgbench to use scale values larger than 21474 (Greg Smith) + Allow pgbench to use a larger scale factor (Greg Smith)