On Fri, 3 Apr 2009, Tom Lane wrote:
Intuitively, it seems like 1-D "overlaps" is a tractable enough operator that you should be able to make something merge-like work. But it's more complicated than I think you realize.
It's tractable when the two sides are symmetrical, but not so much when they aren't. Our "no it isn't" messages obviously crossed on the wire.
Matthew -- Some people, when confronted with a problem, think "I know, I'll use regular expressions." Now they have two problems. -- Jamie Zawinski -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
