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| author | Bruce Momjian <bruce@momjian.us> | 2019-05-21 16:45:48 -0400 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2019-05-21 16:45:48 -0400 |
| commit | 8e719d33fd253fc378871ba4dbf2de41fd2ba462 (patch) | |
| tree | 93614540375b69cd92122cc71c806bfe1e508b48 /doc/src | |
| parent | 3468a04a3e498bab755909505e8f7b6023bea493 (diff) | |
| download | postgresql-8e719d33fd253fc378871ba4dbf2de41fd2ba462.tar.gz postgresql-8e719d33fd253fc378871ba4dbf2de41fd2ba462.zip | |
docs: PG 12 relnote adjustments based on feedback from Tom Lane
Discussion: https://postgr.es/m/22793.1558399695@sss.pgh.pa.us
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/release-12.sgml | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml index ad1aa6c5301..10b3ed56f78 100644 --- a/doc/src/sgml/release-12.sgml +++ b/doc/src/sgml/release-12.sgml @@ -597,12 +597,9 @@ Author: Tom Lane <tgl@sss.pgh.pa.us> --> <para> - Improve handling of partition dependency (Tom Lane) - </para> - - <para> - This prevents the creation of inconsistent partition hierarchies - in rare cases. + Fix bugs that could cause <command>ALTER TABLE DETACH + PARTITION</command> to not drop objects that should be dropped, + such as automatically-created child indexes (Tom Lane) </para> </listitem> @@ -831,28 +828,20 @@ Author: Tom Lane <tgl@sss.pgh.pa.us> <!-- Author: Tom Lane <tgl@sss.pgh.pa.us> 2019-02-09 [1fb57af92] Create the infrastructure for planner support functions. ---> - - <para> - Add support for <link linkend="sql-createfunction">function - selectivity</link> (Tom Lane) - </para> - </listitem> - - <listitem> -<!-- Author: Tom Lane <tgl@sss.pgh.pa.us> 2019-02-09 [a391ff3c3] Build out the planner support function infrastructure. --> <para> - Use the new support function capability to improve optimizer - estimates for some functions (Tom Lane) + Add support function capability to improve optimizer estimates + for functions (Tom Lane) </para> <para> - Specifically, improve them for - <function>generate_series()</function>, + This allows extensions to create planner support functions that + can provide function-specific selectivity, cost, and row-count + estimates that can depend on the function arguments. Also, improve + in-core estimates for <function>generate_series()</function>, <function>unnest()</function>, and functions that return boolean values. </para> |