From: Franck Routier <franck.routier@axege.com>
To: pgsql-performance@postgresql.org
Subject: Deferred constraint and delete performance
Date: Wed, 10 Feb 2010 11:55:31 +0100
Message-ID: <1265799331.28404.14.camel@franck-laptop> (raw)
Hi,
I am trying to improve delete performance on a database with several
foreign keys between relations that have 100M or so rows.
Until now, I have manually disabled the triggers, done the delete, and
re-enabled the triggers.
This works, but I have to do that when I am sure no other user will
access the database...
I am wondering if deferring foreign key constraints (instead of
disableing them) would increase performance, compared to non deferred
constraints (and compared to disableing the constraints, but I guess no
in this case).
Thanks,
Franck
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To: pgsql-performance@postgresql.org
Cc: franck.routier@axege.com
Subject: Re: Deferred constraint and delete performance
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