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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-08-24 01:18:34 +0000 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-08-24 01:18:34 +0000 |
| commit | 08ae5edc5c883352018ef754562fc8edbd4177fd (patch) | |
| tree | ef87fc45a4e1dc895b98c64fdb1d1d55295af24f /src/backend/storage/file/fd.c | |
| parent | 7ad642d0b51fdb3a2fb4372f4b298d3f363b05ec (diff) | |
| download | postgresql-08ae5edc5c883352018ef754562fc8edbd4177fd.tar.gz postgresql-08ae5edc5c883352018ef754562fc8edbd4177fd.zip | |
Optimize the case where a btree indexscan has current and mark positions
on the same index page; we can avoid data copying as well as buffer refcount
manipulations in this common case. Makes for a small but noticeable
improvement in mergejoin speed.
Heikki Linnakangas
Diffstat (limited to 'src/backend/storage/file/fd.c')
0 files changed, 0 insertions, 0 deletions