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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2011-08-09 11:33:46 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2011-08-09 11:34:20 -0400 |
| commit | cff60f2dfa470d5736a19d36eb910844e31db764 (patch) | |
| tree | 96d1218ac40d39c7aa2ea94e732f8aaa4660e8bd /doc/src/sgml/ref/commit_prepared.sgml | |
| parent | f4a9da0a150ead846be33c38f665f4337a81054e (diff) | |
Avoid creating PlaceHolderVars immediately within PlaceHolderVars.
Such a construction is useless since the lower PlaceHolderVar is already
nullable; no need to make it more so. Noted while pursuing bug #6154.
This is just a minor planner efficiency improvement, since the final plan
will come out the same anyway after PHVs are flattened. So not worth the
risk of back-patching.
Diffstat (limited to 'doc/src/sgml/ref/commit_prepared.sgml')
0 files changed, 0 insertions, 0 deletions