From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Bruce Momjian <bruce(at)momjian(dot)us> |
Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Lock levels for ALTER TABLE |
Date: | 2013-01-10 04:56:14 |
Message-ID: | 23560.1357793774@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Bruce Momjian <bruce(at)momjian(dot)us> writes:
> On Wed, Jan 9, 2013 at 10:27:54PM -0500, Tom Lane wrote:
>> Bruce Momjian <bruce(at)momjian(dot)us> writes:
>>> EnterpriseDB reports that our documentation states that ALTER TABLE
>>> takes SHARE UPDATE EXCLUSIVE and ACCESS EXCLUSIVE lock modes.
>> Where do they see that? We certainly reverted all of the documentation
>> that Simon changed in the original commit for that failed feature.
>> Something might have slipped through the cracks though.
> In mvcc.sgml, I see:
> --> some forms of <command>ALTER TABLE</command>.
A bit of "git blame" later, the culprit is commit
7212c77d0cabcc468fec0b9cd7f2413b64b77050, which I apparently didn't
recognize as part of what needed to be reverted in
a195e3c34f1eeb6a607c342121edf48e49067ea9. Will fix.
regards, tom lane
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