On Tue, Aug 5, 2014 at 10:35 PM, David Rowley <dgrowle...@gmail.com> wrote:

> The patch (attached) is also now able to detect when a NOT EXISTS clause
> cannot produce any records at all.
 I've attached an updated version of the patch which fixes up some
incorrect logic in the foreign key matching code, plus various comment


David Rowley

Attachment: semianti_join_removal_f92541e_2014-08-10.patch
Description: Binary data

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