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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2015-08-01 14:31:46 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2015-08-01 14:31:46 -0400 |
| commit | dea1491ffb448d20764a5f2cec8ae33b64dd39f8 (patch) | |
| tree | eda14aed79882f552320715dc78f14681bc4b2d3 /src/backend/access/transam | |
| parent | a6492ff8970b06b9e27cc314c7d1aa574fcc7b04 (diff) | |
| download | postgresql-dea1491ffb448d20764a5f2cec8ae33b64dd39f8.tar.gz postgresql-dea1491ffb448d20764a5f2cec8ae33b64dd39f8.zip | |
Teach predtest.c that "foo" implies "foo IS NOT NULL".
Per complaint from Peter Holzer. It's useful to cover this special case,
since for a boolean variable "foo", earlier parts of the planner will have
reduced variants like "foo = true" to just "foo", and thus we may fail
to recognize the applicability of a partial index with predicate
"foo IS NOT NULL".
Back-patch to 9.5, but not further; given the lack of previous complaints
this doesn't seem like behavior to change in stable branches.
Diffstat (limited to 'src/backend/access/transam')
0 files changed, 0 insertions, 0 deletions