Tom Lane 368df30427 Support hashing for duplicate-elimination in INTERSECT and EXCEPT queries. ... This completes my project of improving usage of hashing for duplicate elimination (aggregate functions with DISTINCT remain undone, but that's for some other day). As with the previous patches, this means we can INTERSECT/EXCEPT on datatypes that can hash but not sort, and it means that INTERSECT/EXCEPT without ORDER BY are no longer certain to produce sorted output.		2008-08-07 03:04:04 +00:00
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Makefile	Refactor backend makefiles to remove lots of duplicate code	2008-02-19 10:30:09 +00:00
prepjointree.c	Arrange to "inline" SQL functions that appear in a query's FROM clause,	2008-03-18 22:04:14 +00:00
prepqual.c	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
preptlist.c	Improve our #include situation by moving pointer types away from the	2008-06-19 00:46:06 +00:00
prepunion.c	Support hashing for duplicate-elimination in INTERSECT and EXCEPT queries.	2008-08-07 03:04:04 +00:00