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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2004-04-07 18:17:25 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2004-04-07 18:17:25 +0000 |
| commit | 989067bd2208398d803e784582e96811d652f574 (patch) | |
| tree | 03e25367119186414e746b2421643b66c07b2198 /doc/src/FAQ/FAQ_DEV.html | |
| parent | 5d1af6aee3c78bb01d78e0a150c9617b1ff23500 (diff) | |
Extend set-operation planning to keep track of the sort ordering induced
by the set operation, so that redundant sorts at higher levels can be
avoided. This was foreseen a good while back, but not done. Per request
from Karel Zak.
Diffstat (limited to 'doc/src/FAQ/FAQ_DEV.html')
0 files changed, 0 insertions, 0 deletions