Tom Lane 056467ec6b Teach planner how to propagate pathkeys from sub-SELECTs in FROM up to ...

the outer query.  (The implementation is a bit klugy, but it would take
nontrivial restructuring to make it nicer, which this is probably not
worth.)  This avoids unnecessary sort steps in examples like
SELECT foo,count(*) FROM (SELECT ... ORDER BY foo,bar) sub GROUP BY foo
which means there is now a reasonable technique for controlling the
order of inputs to custom aggregates, even in the grouping case.

2003-02-15 20:12:41 +00:00

..

allpaths.c

Teach planner how to propagate pathkeys from sub-SELECTs in FROM up to

2003-02-15 20:12:41 +00:00

clausesel.c

Determine the set of constraints applied to a domain at executor

2003-02-03 21:15:45 +00:00

costsize.c

Replace planner's representation of relation sets, per pghackers discussion.

2003-02-08 20:20:55 +00:00

indxpath.c

Replace planner's representation of relation sets, per pghackers discussion.

2003-02-08 20:20:55 +00:00

joinpath.c

Replace planner's representation of relation sets, per pghackers discussion.

2003-02-08 20:20:55 +00:00

joinrels.c

Replace planner's representation of relation sets, per pghackers discussion.

2003-02-08 20:20:55 +00:00

Makefile

Fix relative path references so that make knowns which dependencies refer

2000-08-31 16:12:35 +00:00

orindxpath.c

Phase 2 of read-only-plans project: restructure expression-tree nodes

2002-12-12 15:49:42 +00:00

pathkeys.c

Teach planner how to propagate pathkeys from sub-SELECTs in FROM up to

2003-02-15 20:12:41 +00:00

tidpath.c

Replace planner's representation of relation sets, per pghackers discussion.

2003-02-08 20:20:55 +00:00