Re: IN vs EXISTS equivalence

>>> On Mon, Oct 22, 2007 at  4:37 PM, in message
<471CD1BE.EE98.0025.0@wicourts.gov>, "Kevin Grittner"
<Kevin.Grittner@wicourts.gov> wrote:

> One more logically equivalent, PostgreSQL-specific form which
> costs out even better was suggested off-list:

Oops.  That is not logically equivalent.  We want to delete WHERE NOT
EXISTS; the logic of that suggestion is backwards.

Disregard that last post, please.
-Kevin