Commit graph

5 commits

Author SHA1 Message Date
Tom Lane
53e757689c Make NestLoop plan nodes pass outer-relation variables into their inner
relation using the general PARAM_EXEC executor parameter mechanism, rather
than the ad-hoc kluge of passing the outer tuple down through ExecReScan.
The previous method was hard to understand and could never be extended to
handle parameters coming from multiple join levels.  This patch doesn't
change the set of possible plans nor have any significant performance effect,
but it's necessary infrastructure for future generalization of the concept
of an inner indexscan plan.

ExecReScan's second parameter is now unused, so it's removed.
2010-07-12 17:01:06 +00:00
Bruce Momjian
0239800893 Update copyright for the year 2010. 2010-01-02 16:58:17 +00:00
Tom Lane
421d7d8edb Remove no-longer-needed ExecCountSlots infrastructure. 2009-09-27 21:10:53 +00:00
Bruce Momjian
511db38ace Update copyright for 2009. 2009-01-01 17:24:05 +00:00
Tom Lane
95b07bc7f5 Support window functions a la SQL:2008.
Hitoshi Harada, with some kibitzing from Heikki and Tom.
2008-12-28 18:54:01 +00:00