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Re: pg_upgrade and reg* system oid user types

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Glen Barber <glen(dot)j(dot)barber(at)gmail(dot)com>
Cc: Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-testers(at)postgresql(dot)org
Subject: Re: pg_upgrade and reg* system oid user types
Date: 2010-08-03 18:36:07
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Lists: pgsql-testers
Glen Barber wrote:
> On 8/3/10 2:19 PM, Bruce Momjian wrote:
> > Josh Berkus wrote:
> >> On 8/3/10 10:07 AM, Glen Barber wrote:
> >>> Hi,
> >>>
> >>> I think it might be worth mentioning in the release notes (unless I've
> >>> missed it, of course) that, with the addition of
> >>> check_for_reg_data_type_usage(), pg_upgrade will error if it finds, for
> >>> example, tsearch data from pre-8.3 in user tables.
> >>>
> >>> Otherwise, pg_upgrade has worked wonderfully for me - thanks again for
> >>> bringing it into contrib.
> >>
> >> Good to hear.  Problem report forwarded to Bruce.
> > 
> > I was wondering if users were storing text search reg* data types in
> > their user tables.  Is this common?  Why only pre-8.3?
> > 
> The database I am using in testing 9.0 is a development database which
> mimics our production environment as closely as it can.  This particular
> data has been through several PostgreSQL upgrades, beginning with 7.4,
> if I remember correctly.  The reg* data types in user tables is from
> before tsearch functionality was added to core.

OK, good to know.  I am hoping that isn't something that many people
have in their databases.  We can fix the reg* migration, but it is too
late for 9.0 and fixing it will require additional code in the backend
that we would prefer to avoid.

  Bruce Momjian  <bruce(at)momjian(dot)us>

  + It's impossible for everything to be true. +

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