Re: Transactional DDL, but not Serializable

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Transactional DDL, but not Serializable
Date: 2011-03-25 15:51:44
Message-ID: 4865.1301068304@sss.pgh.pa.us
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Stephen Frost <sfrost(at)snowman(dot)net> writes:
> I don't believe fixing this would be terribly difficult and, I
> believe, would be similar to what we've done else where (eg: with
> indexes)- basically, add a column to pg_class with the 'createdxmin'
> and then compare that against our transaction whenever we're doing
> table lookups.

Making DDL serializable is *not* simple, and half-baked hacks won't
make that situation better ...

regards, tom lane

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