From: Tom Lane <tgl@sss.pgh.pa.us>
To: Artur Zając <azajac@ang.com.pl>
Cc: 'Robert Haas' <robertmhaas@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Difference between explain analyze and real execution time
Date: Mon, 15 Nov 2010 16:03:55 -0500
Message-ID: <7142.1289855035@sss.pgh.pa.us> (raw)
In-Reply-To: <009d01cb8505$ce738900$6b5a9b00$@ang.com.pl>
References: <000001cb849e$1dce2720$596a7560$@ang.com.pl>
<AANLkTim=wpohtfWkNx-=22jcagXndrfTwjvogNt9=f0D@mail.gmail.com>
<009d01cb8505$ce738900$6b5a9b00$@ang.com.pl>
=?iso-8859-2?Q?Artur_Zaj=B1c?= <azajac@ang.com.pl> writes:
> I've changed default_statistics_target to 10000 and I think that is a
> reason.
That's certainly going to cost you something, but this seems like a
mighty large slowdown, especially for a non-join query. What datatype
is te.idtr, anyway?
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, azajac@ang.com.pl, robertmhaas@gmail.com
Subject: Re: Difference between explain analyze and real execution time
In-Reply-To: <7142.1289855035@sss.pgh.pa.us>
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