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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-11-24 19:08:51 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-11-24 19:08:51 +0000 |
| commit | aca467b9b343dccd52a8c8da74ffcf70559fb468 (patch) | |
| tree | 5a5f5a1300989f40f4795992acbbb7fe6be10b0a /src/backend/utils/adt/xml.c | |
| parent | 7ebbc815d994393c4315ef02fe66622e0089f972 (diff) | |
| download | postgresql-aca467b9b343dccd52a8c8da74ffcf70559fb468.tar.gz postgresql-aca467b9b343dccd52a8c8da74ffcf70559fb468.zip | |
Save another little bit of planner overhead on simple queries, by having
clauselist_selectivity skip some analysis that's useless when there's only
one clause in the given list. Actually this can win even for not-so-simple
queries, because we also apply clauselist_selectivity to sublists such as the
quals matching an index; which are likely to have only a single entry even
when the total query is quite complicated.
Diffstat (limited to 'src/backend/utils/adt/xml.c')
0 files changed, 0 insertions, 0 deletions