Re: Dump EXTENSION sequences too

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Gianni Ciolli <gianni(dot)ciolli(at)2ndquadrant(dot)it>
Cc: postgres hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Dump EXTENSION sequences too
Date: 2012-04-24 13:23:34
Message-ID: CA+TgmoaH=sMHH22rsGwVnx+shOJJiArSyVzUeyCOQPz4n5XydQ@mail.gmail.com
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On Thu, Apr 19, 2012 at 6:42 AM, Gianni Ciolli
<gianni(dot)ciolli(at)2ndquadrant(dot)it> wrote:
> currently an EXTENSION can mark some of its tables as "configuration
> tables" using pg_catalog.pg_extension_config_dump(), so that pg_dump
> "does the right thing".
>
> I think it would be useful to mark sequences too, but unfortunately it
> is not possible; hence, each time a dump is reloaded, all the
> sequences in the extension are reset to 1, causing all the related
> problems.
>
> Moreover, the error message that we get if we try to mark a sequence
> does not mention the requirement that the relation is a table. The
> "OID %u does not refer to a table" error message seems to be wrongly
> restricted to the case when get_rel_name can't find a relation.
>
> Is there any objection to the above proposal? I did a little search of
> the archives, but I couldn't find any related discussions; I apologise
> if I missed something.

Seems like a good idea to me.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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