Re: Is there a way to backup Postgres via SQL commands?

From: Merlin Moncure <mmoncure(at)gmail(dot)com>
To: voipfc(at)gmail(dot)com
Cc: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Is there a way to backup Postgres via SQL commands?
Date: 2010-06-14 15:29:09
Message-ID: AANLkTimaEGTfodKvEjh-mv6RTcFpIGm8gpG4myFsxtPK@mail.gmail.com
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On Mon, Jun 14, 2010 at 7:28 AM, Frank Church <voipfc(at)googlemail(dot)com> wrote:
> Are there SQL commands that can do a backup over a client connection,
> rather than from the command line like pgsql etc?
>
> By that I mean some kind of SELECT commands that can retrieve the
> database's content as SQL commands that can be replayed to a server to
> restore it, rather than something that saves directly to file, or
> passes it through a pipe?

no -- it's actually possible for some trivial things (just grabbing a
few tables) -- but anything more complicated will quickly become
unreasonably difficult.

TBH, I think backups through SQL are quite nice. Judging by the
standard of other databases, I generally always prefer the sql version
to the command line variant with both tools are available.

It would also be nice to be able to generate a restorable script from
any userland object. pg_dump/pg_restore gives you the ability to
specifically grab indexes, functions, table, and triggers, but that's
it.

merlin

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