Tom Lane 5a7471c307 Add COST and ROWS options to CREATE/ALTER FUNCTION, plus underlying pg_proc ... columns procost and prorows, to allow simple user adjustment of the estimated cost of a function call, as well as control of the estimated number of rows returned by a set-returning function. We might eventually wish to extend this to allow function-specific estimation routines, but there seems to be consensus that we should try a simple constant estimate first. In particular this provides a relatively simple way to control the order in which different WHERE clauses are applied in a plan node, which is a Good Thing in view of the fact that the recent EquivalenceClass planner rewrite made that much less predictable than before.		2007-01-22 01:35:23 +00:00
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bench	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
examples	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
locale	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00
mb	Change the backend to reject strings containing invalidly-encoded multibyte	2006-05-21 20:05:21 +00:00
performance	Add CVS tag lines to files that were lacking them.	2006-03-11 04:38:42 +00:00
regress	Add COST and ROWS options to CREATE/ALTER FUNCTION, plus underlying pg_proc	2007-01-22 01:35:23 +00:00
thread	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
Makefile	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00