Re: WHERE order

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Rod Taylor <rbt(at)rbt(dot)ca>
Cc: PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: WHERE order
Date: 2003-08-26 22:18:16
Message-ID: 18733.1061936296@sss.pgh.pa.us
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Rod Taylor <rbt(at)rbt(dot)ca> writes:
> I would think that a simple optimization would be to push off evaluation
> of a subplan whenever possible by re-arranging AND statements.

Thought we did that already ... [ checks code ] ... hmph, it looks like
this is done correctly for quals attached to a scan node, but not for
quals attached to a join node. Oops.

regards, tom lane

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