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| author | Robert Haas <rhaas@postgresql.org> | 2012-03-21 14:51:11 -0400 |
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| committer | Robert Haas <rhaas@postgresql.org> | 2012-03-21 14:52:44 -0400 |
| commit | 5b9c1e6d52dfd022a074462e029bfd7f7bc4321c (patch) | |
| tree | a7278f879e9749aeb9daaf243998dab3f9605131 /src/backend/executor/nodeSetOp.c | |
| parent | f70f095c9096d5e2689e8d79172b37b57a84e51b (diff) | |
| download | postgresql-5b9c1e6d52dfd022a074462e029bfd7f7bc4321c.tar.gz postgresql-5b9c1e6d52dfd022a074462e029bfd7f7bc4321c.zip | |
Doc updates for index-only scans.
Document that routine vacuuming is now also important for the purpose
of index-only scans; and mention in the section that describes the
visibility map that it is used to implement index-only scans.
Marti Raudsepp, with some changes by me.
Diffstat (limited to 'src/backend/executor/nodeSetOp.c')
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