Re: [HACKERS] PG_UPGRADE status?

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От Bruce Momjian
Тема Re: [HACKERS] PG_UPGRADE status?
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Msg-id 199909082234.SAA27594@candle.pha.pa.us
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Ответ на Re: [HACKERS] PG_UPGRADE status?  (Lamar Owen <lamar.owen@wgcr.org>)
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> Reference my message to Tom Lane.  Yes, such a program would be hard --
> but most of it is already written and available in CVS -- thank God for
> CVS! -- all that's needed is to extract the storage managers for each
> major version, extract the reading code, etc, to get the on-disk
> representation to an intermediate in memory form, then write it out with
> the latest and greatest storage manager (into a different file, of
> course, until the upgrade is finished).  Unless I badly misunderstand
> the way PostgreSQL does things, that should work -- but I may not have
> expressed it the same way I see it in my mind.

Do a cost/benefit analysis on that one.  :-)

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