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Re: Query performance inconsistant. - Mailing list pgsql-general

From Tom Lane
Subject Re: Query performance inconsistant.
Date
Msg-id 23189.1157053878@sss.pgh.pa.us
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In response to Re: Query performance inconsistant.  (Jeff Davis <pgsql@j-davis.com>)
Responses Re: Query performance inconsistant.
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Jeff Davis <pgsql@j-davis.com> writes:
> From what you described, I would not expect many locking problems. Are
> there any other types of queries you run that may cause a lock?

Row locks (SELECT FOR UPDATE/SHARE) are a possible problem, particularly
if this is a pre-8.1 Postgres where exclusive row locks were used for
foreign key constraints.

            regards, tom lane

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