> I asked this question about a half year ago or so, and got: > > http://archives.postgresql.org/pgsql-hackers/2005-05/msg00331.php
Thanks James, that's just what I was looking for.
-- Korry
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
