2007/10/23, Kevin Grittner <[EMAIL PROTECTED]>:
> >>> On Mon, Oct 22, 2007 at 4:37 PM, in message
> <[EMAIL PROTECTED]>, "Kevin Grittner"
> <[EMAIL PROTECTED]> 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
>
>
my mistake, sorry
Pavel
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