Re: add_missing_from breaks existing views

From: Andrew - Supernews <andrew+nonews(at)supernews(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: add_missing_from breaks existing views
Date: 2005-10-26 00:36:24
Message-ID: slrndltjs8.g61.andrew+nonews@trinity.supernews.net
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On 2005-10-25, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On Tue, 2005-10-25 at 17:43 -0400, Tom Lane wrote:
>
>> 1. Tell people they may have to set add_missing_from = true to reload
>> a dump that contains such views.
>>
>> 2. Revert the change to make add_missing_from default as false, and
>> wait a few more releases before making it default.
>>
>> Comments?
>
> This needs to be (1).
>
> Whichever version we make the change for, there will always be a point
> where the pg_dump would be taken with add_missing_from=true by default
> and moving to new version with add_missing_from=false. Putting that off
> for another release will still allow that failure condition to exist at
> that later time: so we must tell people about it now.

Wild idea: how about having pg_dump include SET add_missing_from = true;
in the dump file if, and only if, it is set that way in the server?
Perhaps do this only for server versions <8.1... and ensure that dumps
from an 8.1 server include the explicit table names...

--
Andrew, Supernews
http://www.supernews.com - individual and corporate NNTP services

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