diff --git a/doc/src/sgml/release-9.6.sgml b/doc/src/sgml/release-9.6.sgml index a14545d5d80e20deadf927ce60cf256b4cf83bd4..74b5bcaa507dc66d48e49881e732b9363c073d42 100644 --- a/doc/src/sgml/release-9.6.sgml +++ b/doc/src/sgml/release-9.6.sgml @@ -7,7 +7,7 @@ <note> <title>Release Date</title> <simpara>2016-??-??</simpara> - <simpara>Current as of 2016-05-08 (commit 6f69b9639)</simpara> + <simpara>Current as of 2016-06-18 (commit 100340e2d)</simpara> </note> <sect2> @@ -136,6 +136,8 @@ 2016-04-05 [11c8669c0] Add parallel query support functions for assorted aggreg 2016-04-08 [25fe8b5f1] Add a 'parallel_degree' reloption. 2016-04-27 [59eb55127] Fix EXPLAIN VERBOSE output for parallel aggregate. +2016-06-09 [c9ce4a1c6] Eliminate "parallel degree" terminology. +2016-06-16 [75be66464] Invent min_parallel_relation_size GUC to replace a hard- --> <para> Parallel queries (Robert Haas, Amit Kapila, David Rowley, many others) @@ -155,8 +157,9 @@ configuration parameters <xref linkend="guc-max-parallel-workers-per-gather">, <xref linkend="guc-force-parallel-mode">, - <xref linkend="guc-parallel-setup-cost">, and - <xref linkend="guc-parallel-tuple-cost">. + <xref linkend="guc-parallel-setup-cost">, + <xref linkend="guc-parallel-tuple-cost">, and + <xref linkend="guc-min-parallel-relation-size">. </para> </listitem> @@ -255,6 +258,7 @@ 2016-03-08 [77a1d1e79] Department of second thoughts: remove PD_ALL_FROZEN. 2016-03-10 [fd31cd265] Don't vacuum all-frozen pages. 2016-03-11 [7087166a8] pg_upgrade: Convert old visibility map format to new for +2016-06-17 [ede62e56f] Add VACUUM (DISABLE_PAGE_SKIPPING) for emergencies. --> <para> Avoid re-vacuuming pages containing only frozen tuples @@ -269,6 +273,13 @@ transaction wraparound prevention. This should greatly reduce the cost of maintaining large tables containing mostly-unchanging data. </para> + + <para> + If necessary, vacuum can be forced to process all-frozen pages + using its new <literal>DISABLE_PAGE_SKIPPING</> option. This + should never be needed normally, but it might help for example + in recovering from visibility-map corruption. + </para> </listitem> <listitem> @@ -349,6 +360,7 @@ 2016-04-26 [72a98a639] Don't open formally non-existent segments in _mdfd_getse 2016-05-04 [a71248708] Fix transient mdsync() errors of truncated relations due 2016-02-16 [7975c5e0a] Allow the WAL writer to flush WAL at a reduced rate. +2016-06-10 [4bc0f165c] Change default of backend_flush_after GUC to 0 (disabled --> <para> Where feasible, trigger kernel writeback after a configurable number @@ -446,14 +458,16 @@ <listitem> <!-- 2016-04-08 [137805f89] Use Foreign Key relationships to infer multi-column join +2016-06-07 [77ba61080] Revert "Use Foreign Key relationships to infer multi-col +2016-06-18 [100340e2d] Restore foreign-key-aware estimation of join relation si --> <para> - Use foreign key relationships to infer selectivity for multi-column + Use foreign key relationships to infer selectivity for join predicates (Tomas Vondra, David Rowley) </para> <para> - If a table <literal>t</> has a multi-column foreign key restriction, + If a table <literal>t</> has a foreign key restriction, say <literal>(a,b) REFERENCES r (x,y)</>, then a <literal>WHERE</> condition such as <literal>t.a = r.x AND t.b = r.y</> cannot select more than one <literal>r</> row per <literal>t</> row. The planner @@ -2044,6 +2058,7 @@ This commit is also listed under libpq and psql <listitem> <!-- 2016-04-08 [5c3c3cd0a] Enhanced custom error in PLPythonu +2016-06-11 [020140d84] PL/Python: Rename new keyword arguments of plpy.error() --> <para> Extend PL/Python's error-reporting and message-reporting functions to @@ -2366,6 +2381,7 @@ This commit is also listed under psql and PL/pgSQL <listitem> <!-- 2016-03-21 [dea2b5960] Improve header output from psql's \watch command. +2016-06-15 [9901d8ac2] Use strftime("%c") to format timestamps in psql's \watch --> <para> Improve the headers output by the <command>\watch</> command @@ -2376,6 +2392,8 @@ This commit is also listed under psql and PL/pgSQL Include the <command>\pset title</> string if one has been set, and shorten the prefabricated part of the header to be <literal><replaceable>timestamp</> (every <replaceable>N</>s)</literal>. + Also, the timestamp format now obeys <application>psql</>'s locale + environment. </para> </listitem> @@ -3268,6 +3286,7 @@ This commit is also listed under libpq and PL/pgSQL <listitem> <!-- 2016-04-21 [f039eaac7] Allow queries submitted by postgres_fdw to be canceled. +2016-05-16 [1b812afb0] Fix multiple problems in postgres_fdw query cancellation --> <para> Transmit query cancellation requests to the remote server