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Re: pg_upgrade project status

From: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pg_upgrade project status
Date: 2009-01-29 13:15:01
Message-ID: 1233234901.1407.14.camel@localhost (view raw or flat)
Thread:
Lists: pgsql-hackers
Bruce Momjian píše v st 28. 01. 2009 v 23:19 -0500:

> I am stumped as well.  In the 12 years I have been involved, there are
> perhaps five issues that the original pg_upgrade written in 1998 didn't
> handle, and mostly handles now.  Considering the number of catalog
> changes since 1998, the ratio is enormous.

You don't need convert all of catalogs and only few of them are usually
modified in each version (like pg_class, pg_type...). 

		Zdenek


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