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From: Tom Lane <tgl@sss.pgh.pa.us>
To: andrew <andrew.ylzhou@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: filtering after join
Date: Fri, 27 Jan 2006 09:55:39 -0500
Message-ID: <2048.1138373739@sss.pgh.pa.us> (raw)
In-Reply-To: <29d3b0b90601270117t2a8ec180x469b2a65f6b29a13@mail.gmail.com>
References: <29d3b0b90601250927o2a5ee6e6mc33a7647da4438ce@mail.gmail.com>
	<200601261222.34906.peter_e@gmx.net>
	<29d3b0b90601260454g35817213o7d5a0e8a1e53ddf7@mail.gmail.com>
	<200601261759.31184.peter_e@gmx.net>
	<29d3b0b90601270110w645eab52k41ea6e385f297ae4@mail.gmail.com>
	<29d3b0b90601270117t2a8ec180x469b2a65f6b29a13@mail.gmail.com>

andrew <andrew.ylzhou@gmail.com> writes:
> I got errors in this query. I have a function complete(record) which
> takes a generic record type data. But it seems cannot be applied to a
> sub-select result:

As I seem to recall having mentioned several times already, PG 7.3 is
really, really weak in this area.  (If you ever got it to work, which
I doubt you will, you'd probably then start to notice how badly it
leaks memory for whole-row operations...)

You should either forget this idea or invest the effort to move up
to PG 8.1.

			regards, tom lane

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