Re: pg_dump issues

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От Alvaro Herrera
Тема Re: pg_dump issues
Дата
Msg-id 1317656240-sup-777@alvh.no-ip.org
обсуждение исходный текст
Ответ на Re: pg_dump issues  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: pg_dump issues  (Tom Lane <tgl@sss.pgh.pa.us>)
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Excerpts from Tom Lane's message of lun oct 03 01:47:18 -0300 2011:

> (Without cassert, it looks like LockReassignCurrentOwner is the next
> biggest time sink; I'm wondering if there's some sort of O(N^2) behavior
> in there.)

That seems fishy.  Even if there weren't quadratic behavior, should this
be called at all?  AFAIK it should only be used on cases where there are
subtransactions at work, and I don't think pg_dump uses them.

-- 
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support


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