Re: all views in database broken at once

From: Jan Wieck <JanWieck(at)Yahoo(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andrew Perrin <aperrin(at)socrates(dot)berkeley(dot)edu>, pgsql-sql(at)postgresql(dot)org
Subject: Re: all views in database broken at once
Date: 2001-03-25 12:57:14
Message-ID: 200103251257.HAA24194@jupiter.jw.home
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Tom Lane wrote:
> Andrew Perrin <aperrin(at)socrates(dot)berkeley(dot)edu> writes:
> > But I'm intrigued: what is it that causes this? Is it *my*
> > recreating the view on which the other views depend,
>
> Yes. You dropped and recreated the view --- the new version may have
> the same name but it's not the same OID, so it isn't the same object.
> And the other views refer to it by OID.
>
> The ultimate solution should have two parts, IMHO:
>
> 1. Dependency checking so that you *can't* drop a view that is still
> referenced. However this will not be complete --- it's not clear that
> we can detect references inside PL functions, for example.

PL's aren't too critical. A simple reconnect will whipe out
all SPI plans in PL functions and RI triggers, so they'll
notice the changes.

Jan

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