Tom Lane 9f5f212475 Allow the planner to collapse explicit inner JOINs together, rather than ... necessarily following the JOIN syntax to develop the query plan. The old behavior is still available by setting GUC variable JOIN_COLLAPSE_LIMIT to 1. Also create a GUC variable FROM_COLLAPSE_LIMIT to control the similar decision about when to collapse sub-SELECT lists into their parent lists. (This behavior existed already, but the limit was always GEQO_THRESHOLD/2; now it's separately adjustable.)		2003-01-25 23:10:30 +00:00
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Makefile	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00
prepjointree.c	Allow the planner to collapse explicit inner JOINs together, rather than	2003-01-25 23:10:30 +00:00
prepqual.c	Phase 2 of read-only-plans project: restructure expression-tree nodes	2002-12-12 15:49:42 +00:00
preptlist.c	Phase 2 of read-only-plans project: restructure expression-tree nodes	2002-12-12 15:49:42 +00:00
prepunion.c	IN clauses appearing at top level of WHERE can now be handled as joins.	2003-01-20 18:55:07 +00:00