From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter J. Holzer <hjp-pgsql@hjp.at>
Cc: pgsql-performance@postgresql.org
Subject: Re: Query that took a lot of time in Postgresql when not using trim in order by
Date: Sun, 29 Nov 2015 12:58:36 -0500
Message-ID: <6979.1448819916@sss.pgh.pa.us> (raw)
In-Reply-To: <20151129132323.GA29654@hjp.at>
References: <CANL=RnsS-VFKwV0-PGRZwvV6boFRZ9CSBGvDFDm3TLts-SUHVQ@mail.gmail.com>
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<20151129132323.GA29654@hjp.at>
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"Peter J. Holzer" <hjp-pgsql@hjp.at> writes:
> Seems plausible. Also I'm wondering what CPU this is: 36 seconds for an
> in-memory sort of 900k rows seems slow to me.
I'm wondering if it's textual data in some locale whose strcoll() behavior
is exceptionally slow.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, hjp-pgsql@hjp.at
Subject: Re: Query that took a lot of time in Postgresql when not using trim in order by
In-Reply-To: <6979.1448819916@sss.pgh.pa.us>
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