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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2010-05-10 16:25:46 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2010-05-10 16:25:46 +0000 |
| commit | ed83f6e38209016ae75832ae8997f190ea4a0c8e (patch) | |
| tree | 5e516434a6cff602979a638b9ba16420f9267aa9 /src/backend/tcop/postgres.c | |
| parent | 7fdbb8e3537c6baee61ff26e52e0923de15c6b3f (diff) | |
| download | postgresql-ed83f6e38209016ae75832ae8997f190ea4a0c8e.tar.gz postgresql-ed83f6e38209016ae75832ae8997f190ea4a0c8e.zip | |
When adding a "target IS NOT NULL" indexqual to the plan for an index-optimized
MIN or MAX, we must take care to insert the added qual in a legal place among
the existing indexquals, if any. The btree index AM requires the quals to
appear in index-column order. We didn't have to worry about this before
because "target IS NOT NULL" was just treated as a plain scan filter condition;
but as of 9.0 it can be an index qual and then it has to follow the rule.
Per report from Ian Barwick.
Diffstat (limited to 'src/backend/tcop/postgres.c')
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