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3 commits

Author SHA1 Message Date
Bruce Momjian
1dc3498251 Standard pgindent run for 8.1. 2005-10-15 02:49:52 +00:00
Tom Lane
9d64632144 Minor performance improvement: avoid unnecessary creation/unioning of 
bitmaps for multiple indexscans.  Instead just let each indexscan add
TIDs directly into the BitmapOr node's result bitmap.
 2005-04-20 15:48:36 +00:00
Tom Lane
4a8c5d0375 Create executor and planner-backend support for decoupled heap and index 
scans, using in-memory tuple ID bitmaps as the intermediary.  The planner
frontend (path creation and cost estimation) is not there yet, so none
of this code can be executed.  I have tested it using some hacked planner
code that is far too ugly to see the light of day, however.  Committing
now so that the bulk of the infrastructure changes go in before the tree
drifts under me.
 2005-04-19 22:35:18 +00:00