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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2004-01-04 03:51:52 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2004-01-04 03:51:52 +0000 |
| commit | 82b4dd394f50f75a34d3ddc1c7d54b8d8fcace33 (patch) | |
| tree | 1fb959074c117f48b987a77e7632ec6bbcc583da /src/include/postgres.h | |
| parent | 21a12022818b6ac418d7a1544e92f8b13d61cc91 (diff) | |
| download | postgresql-82b4dd394f50f75a34d3ddc1c7d54b8d8fcace33.tar.gz postgresql-82b4dd394f50f75a34d3ddc1c7d54b8d8fcace33.zip | |
Merge restrictlist_selectivity into clauselist_selectivity by
teaching the latter to accept either RestrictInfo nodes or bare
clause expressions; and cache the selectivity result in the RestrictInfo
node when possible. This extends the caching behavior of approx_selectivity
to many more contexts, and should reduce duplicate selectivity
calculations.
Diffstat (limited to 'src/include/postgres.h')
0 files changed, 0 insertions, 0 deletions