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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Wells Oliver <wells.oliver@gmail.com>
cc: pgsql-admin@postgresql.org
Subject: Re: Dropping constraints on a table locks referenced table... why?
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Comments: In-reply-to Wells Oliver <wells.oliver@gmail.com>
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Wells Oliver <wells.oliver@gmail.com> writes:
> I have a table A which has an FK constraint referencing another table B.
> Dropping this FK constraint on A locks table B, as does trying to drop
> table A. Why is this?

There are triggers on both tables that have to be removed.

			regards, tom lane