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Re: RI_ConstraintTrigger question

From: "pobox(at)verysmall(dot)org" <pobox(at)verysmall(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Jan Wieck <JanWieck(at)Yahoo(dot)com>,George Essig <george(dot)essig(at)gmail(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: RI_ConstraintTrigger question
Date: 2005-09-28 00:20:44
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-general
Tom Lane wrote:
> Jan Wieck <JanWieck(at)Yahoo(dot)com> writes:
>> On 9/27/2005 12:20 AM, George Essig wrote:
>>>> We have a database with about 30 tables and some RI. The RI constraints,
>>>> however, were not named upon creation of the database 2-3 years ago and
>>>> now when we get an error it contains <unnamed> for the constraint.
>> What you could do is to dump the database, edit the dump and restore it. 
> Why not just drop and re-add the FK constraints?
> 			regards, tom lane

 From all responses it seems that dump/drop is is the only way. This is 
what I also understood from the documentation. I just hoped there is 
another way (ALTER or so), that can be run LIVE, as the problem is not 
so severe in order to justify the downtime. For example few weeks ago we 
had several smallint columns that became overpopulated and it was so 
easy to change them to integer without any downtime. I hoped for 
something similar with the FK constraints. We will have to leave these 
for some quiet time one day.

(we run 8.0.3 on FreeBSD 5.4)

Thank you for the comments.

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Subject: Re: Extraordinarily slow!!
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