From: Tom Lane <tgl@sss.pgh.pa.us>
To: Michael Glaesemann <grzm@seespotcode.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: EXPLAIN ANALYZE time calculations
Date: Sun, 02 Dec 2007 20:10:25 -0500
Message-ID: <549.1196644225@sss.pgh.pa.us> (raw)
In-Reply-To: <B7887A14-4EA8-4027-AAFB-FE44E35E4046@seespotcode.net>
References: <8C0EE80A-42A3-4CC1-850B-2A6B9220B422@seespotcode.net>
<239.1196643379@sss.pgh.pa.us>
<B7887A14-4EA8-4027-AAFB-FE44E35E4046@seespotcode.net>
Michael Glaesemann <grzm@seespotcode.net> writes:
> I took startup time to be the time to return the first row *of the
> first loop*. But it's actually the average startup time to return the
> first row *in each loop*, right?
Correct, just as the total time and tuples returned are averages over all
the loops.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, grzm@seespotcode.net
Subject: Re: EXPLAIN ANALYZE time calculations
In-Reply-To: <549.1196644225@sss.pgh.pa.us>
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