Re: deferred foreign keys

From: Vivek Khera <khera(at)kcilink(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: deferred foreign keys
Date: 2004-01-05 16:33:40
Message-ID: x7isjqcq3f.fsf@yertle.int.kciLink.com
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>>>>> "CK" == Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> writes:

>> One more question: does the FK checker know to skip checking a
>> constraint if the column in question did not change during an update?

CK> As of 7.4, yes the check is skipped.

Thanks. Then it sorta makes it moot for me to try deferred checks,
since the Pimary and Foreign keys never change once set. I wonder
what is making the transactions appear to run lockstep, then...

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Vivek Khera, Ph.D. Khera Communications, Inc.
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AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/

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