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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-02-16 23:32:08 +0000 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-02-16 23:32:08 +0000 |
| commit | 72a070a3653ffc6519b9af5f3959f872cb4dea7d (patch) | |
| tree | dd521ed3458d4621097d5f61703ed2abd441ac74 /src/backend/utils/adt/numeric.c | |
| parent | 46bd3bff624db8f3e9bc2e1dbb8ef7ad8c97ed2e (diff) | |
| download | postgresql-72a070a3653ffc6519b9af5f3959f872cb4dea7d.tar.gz postgresql-72a070a3653ffc6519b9af5f3959f872cb4dea7d.zip | |
Teach find_nonnullable_rels to handle OR cases: if every arm of an OR
forces a particular relation nonnullable, then we can say that the OR does.
This is worth a little extra trouble since it may allow reduction of
outer joins to plain joins.
Diffstat (limited to 'src/backend/utils/adt/numeric.c')
0 files changed, 0 insertions, 0 deletions