postgres.git / log / commits on 2008-08-07
19:35 af95d7aa63be Improve INTERSECT/EXCEPT hashing by realizing that we don't need to make any
Tom Lane <tgl@sss.pgh.pa.us>
03:04 368df3042783 Support hashing for duplicate-elimination in INTERSECT and EXCEPT queries.
Tom Lane <tgl@sss.pgh.pa.us>
01:11 2d1d96b1cea8 Teach the system how to use hashing for UNION. (INTERSECT/EXCEPT will follow,
Tom Lane <tgl@sss.pgh.pa.us>