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* For some reason access/tupmacs.h has been #including utils/memutils.h,Tom Lane2005-05-06
| | | | | | | which is neither needed by nor related to that header. Remove the bogus inclusion and instead include the header in those C files that actually need it. Also fix unnecessary inclusions and bad inclusion order in tsearch2 files.
* Create executor and planner-backend support for decoupled heap and indexTom Lane2005-04-19
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.