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Re: STABLE functions

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: strk <strk(at)keybit(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org,postgis-devel(at)postgis(dot)refractions(dot)net
Subject: Re: STABLE functions
Date: 2005-02-01 16:54:55
Message-ID: 15384.1107276895@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
strk <strk(at)keybit(dot)net> writes:
> Hello all, I saw that STABLE-defined functions
> don't get replaced by their output, shoudn't they ?
> Following shows that VOLATILE and STABLE functions outputs
> won't get into the Filter, while IMMUTABLE will.

The examples are acting exactly as they should.  See
http://www.postgresql.org/docs/8.0/static/xfunc-volatility.html

			regards, tom lane

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