From: Stephen Frost <sfrost@snowman.net>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Ray Stell <stellr@vt.edu>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: 9.4 pg_dump use on 9.0 db
Date: Tue, 13 Jan 2015 10:34:45 -0500
Message-ID: <20150113153445.GQ3062@tamriel.snowman.net> (raw)
In-Reply-To: <11235.1421162639@sss.pgh.pa.us>
References: <54B52E9B.8020208@vt.edu>
<11235.1421162639@sss.pgh.pa.us>
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* Tom Lane (tgl@sss.pgh.pa.us) wrote:
> Ray Stell <stellr@vt.edu> writes:
> > Is it valid to dump a 9.0 db with a 9.4 pg_dump and make use of the
> > parallel feature? TIA.
>
> Yes, but be aware that 9.4 pg_dump will be generating output meant to
> be loaded into a 9.4 server. You might have to make some adjustments
> if you mean to reload it into 9.0.
Also be aware that you won't get a synchronized snapshot and therefore
the resulting dump might not be valid..
Looking at pg_dump, for my 2c anyway, it'd be nicer if we threw an error
on parallel dump request when the major version doesn't support
synchronized snapshots, unless the user explicitly passed
--no-synchronized-snapshots, indicating that they don't care.
Thanks,
Stephen
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To: pgsql-admin@postgresql.org
Cc: sfrost@snowman.net, tgl@sss.pgh.pa.us, stellr@vt.edu
Subject: Re: 9.4 pg_dump use on 9.0 db
In-Reply-To: <20150113153445.GQ3062@tamriel.snowman.net>
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