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Re: --single-transaction hack to pg_upgrade does not work

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Andrew Dunstan <andrew(at)dunslane(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>,pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: --single-transaction hack to pg_upgrade does not work
Date: 2012-12-01 16:36:20
Message-ID: 20121201163620.GB16220@alap2 (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On 2012-12-01 17:03:03 +0100, Andres Freund wrote:
> Could we possibly allow adding enum values to a type which was just created in
> this transaction? That shouldn't be too hard. At least easier than providing
> the capability to pre-assign the next N oids...

The attached patch does just that. Its *not* ready yet though, as it
will be apparent for everyone who reads it ;)

To really make that work in a reliable manner we would probably need
an rd_createSubid for typcache entries instead of testing xmin as I have
done here?

Andres Freund

 Andres Freund	         
 PostgreSQL Development, 24x7 Support, Training & Services

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