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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 14:31:59 -0400 |
| commit | 8dccf030e884ea8c723275a070acf8a8ed1eebe1 (patch) | |
| tree | 80ec64b4a380655ddcac88629966d0ab0190a94f /doc | |
| parent | edf26ed033f18bddc9bfe5c239388330150766a1 (diff) | |
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 'doc')
0 files changed, 0 insertions, 0 deletions