diff options
| author | Bruce Momjian | 2015-06-13 01:47:08 +0000 |
|---|---|---|
| committer | Bruce Momjian | 2015-06-13 01:47:49 +0000 |
| commit | 89fe9bfc4ed3b5dc8e02119cc1fd39c975ffdea0 (patch) | |
| tree | 9f507b43eb84f6c9841f4f0f922cbdefcd22260d | |
| parent | 2271d002d5c305441398e8f7a295f18ec3c132a9 (diff) | |
release notes: add two optimizer items
Report by Tom Lane
| -rw-r--r-- | doc/src/sgml/release-9.5.sgml | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/src/sgml/release-9.5.sgml b/doc/src/sgml/release-9.5.sgml index 98f2107de33..17301a459af 100644 --- a/doc/src/sgml/release-9.5.sgml +++ b/doc/src/sgml/release-9.5.sgml @@ -242,6 +242,21 @@ <listitem> <para> + Allow the optimizer to remove unnecessary references to left + outer join subqueries (David Rowley) + </para> + </listitem> + + <listitem> + <para> + Allow pushdown of query restrictions into <link + linkend="functions-window">window functions</>, where appropriate + (David Rowley) + </para> + </listitem> + + <listitem> + <para> Speed up <acronym>CRC</> (cyclic redundancy check) computations (Abhijit Menon-Sen, Heikki Linnakangas) </para> |