Re: pg_migrator issues

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pg_migrator issues
Date: 2010-01-06 03:04:47
Message-ID: 201001060304.o0634lp13249@momjian.us
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Bruce Momjian wrote:
> Bruce Momjian wrote:
> > pg_migrator has become more popular recently, so it seems time to look
> > at some enhancements that would improve pg_migrator. None of these are
> > required, but rather changes that would be nice to have:
> >
> > 1) Right now pg_migrator preserves relfilenodes for TOAST files because
> > this is required for proper migration. Now that we have shown that
> > strategically-placed global variables with a server-side function to set
> > them is a viable solution, it would be nice to preserve all relfilenodes
> > from the old server. This would simplify pg_migrator by no long
> > requiring place-holder relfilenodes or the renaming of TOAST files. A
> > simpler solution would just be to allow TOAST table creation to
> > automatically remove placeholder files and create specified relfilenodes
> > via global variables.
>
> Attached is a patch that implements #1 above by preserving all
> relfilenodes, with pg_dump support. It uses the same method I used for
> preserving pg_type/pg_enum. I have tested this on the regression
> database and it successfully preserved all relfilenodes.
>
> This patch also removes the 'force' parameter in toast functions that
> Tom added for 8.4 --- it is no longer needed.

Applied.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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