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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Merlin Moncure <mmoncure@gmail.com>
Cc: Rodrigo Rosenfeld Rosas <rr.rosas@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Query completed in < 1s in PG 9.1 and ~ 700s in PG 9.2
Date: Tue, 06 Nov 2012 16:18:08 -0500
Message-ID: <20167.1352236688@sss.pgh.pa.us> (raw)
In-Reply-To: <CAHyXU0xRk0LCj6NYuTAUaWN2FDAWj+jHgH2niDAGtb1w4QT83w@mail.gmail.com>
References: <509944DE.6020400@gmail.com>
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	<50995D7C.9020108@gmail.com>
	<17866.1352229874@sss.pgh.pa.us>
	<50996583.2080703@gmail.com>
	<18371.1352231105@sss.pgh.pa.us>
	<CAHyXU0xRk0LCj6NYuTAUaWN2FDAWj+jHgH2niDAGtb1w4QT83w@mail.gmail.com>

Merlin Moncure <mmoncure@gmail.com> writes:
> hm, wouldn't timing the time to generate a raw EXPLAIN (that is,
> without ANALYZE) give a rough estimate of planning time?   better to
> rule it out before OP goes to the trouble...

Well, we still wouldn't know *why* there was a problem ...

			regards, tom lane




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