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| author | Michael Paquier <michael@paquier.xyz> | 2019-02-12 12:01:56 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2019-02-12 12:01:56 +0900 |
| commit | ea05b221c2ff9d180f632ae90c806e984f15ed0d (patch) | |
| tree | fcc2a6cd92b09b49c0003949573ba07da517da25 | |
| parent | 74dfe58a5927b22c744b29534e67bfdd203ac028 (diff) | |
| download | postgresql-ea05b221c2ff9d180f632ae90c806e984f15ed0d.tar.gz postgresql-ea05b221c2ff9d180f632ae90c806e984f15ed0d.zip | |
Clarify docs about limitations of constraint exclusion with partitions
The current wording can confuse the reader about constraint exclusion
being available at query execution, but this only applies to partition
pruning.
Reported-by: Shouyu Luo
Author: David Rowley
Reviewed-by: Chapman Flack, Amit Langote
Discussion: https://postgr.es/m/15629-2ef8b22e61f8333f@postgresql.org
| -rw-r--r-- | doc/src/sgml/ddl.sgml | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml index ef713a5a1cf..8314fce78ff 100644 --- a/doc/src/sgml/ddl.sgml +++ b/doc/src/sgml/ddl.sgml @@ -4511,8 +4511,8 @@ EXPLAIN SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01'; <itemizedlist> <listitem> <para> - Constraint exclusion is only applied during query planning; unlike - partition pruning, it cannot be applied during query execution. + Constraint exclusion is only applied during query planning, unlike + partition pruning, which can also be applied during query execution. </para> </listitem> |