Paul,

2) Wouldn't the query be much faster if the
ENCODE(k.messageblk::bytea,'escape') LIKE '%sim%' was in the WHERE
clause instead of the HAVING clause?

Try it. Afaik, it simply wont work.

That depends on whether you're trying to return just a list of IDs, or the full contents of the messages. If you just need a list of IDs, you can use the WHERE clause.

--Josh

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