Re: Function execution costs 'n all that

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Neil Conway <neilc(at)samurai(dot)com>
Cc: Brian Hurt <bhurt(at)janestcapital(dot)com>, Richard Troy <rtroy(at)ScienceTools(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Function execution costs 'n all that
Date: 2007-01-15 20:46:31
Message-ID: 22609.1168893991@sss.pgh.pa.us
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Neil Conway <neilc(at)samurai(dot)com> writes:
> BTW, your proposal would still pushdown all qualifiers, right?

Yeah, I have no intention of readopting xfunc in the near future ...
especially seeing that it's possible for the user to force that
sort of thing if he really has to.

SELECT * FROM (SELECT ... OFFSET 0) ss
WHERE expensive_function(...);

regards, tom lane

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