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Re: BUG #4800: constraint_exclusion could be smarter with bool conversion - Mailing list pgsql-bugs

From Tom Lane
Subject Re: BUG #4800: constraint_exclusion could be smarter with bool conversion
Date
Msg-id 7613.1241797452@sss.pgh.pa.us
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In response to BUG #4800: constraint_exclusion could be smarter with bool conversion  ("Alex" <alex@xdcom.org>)
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"Alex" <alex@xdcom.org> writes:
> I wish constraint_exclusion to be smarter with bool conversion so that
> 'select * from foo where (mask&5)::bool' can be faster;

Don't hold your breath.  It's tough enough deriving conclusions from
ordinary btree-indexable comparison operators.

            regards, tom lane

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