| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andrew Dunstan <andrew(at)dunslane(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: pg_dump issues |
| Date: | 2011-10-03 15:38:27 |
| Message-ID: | 1317656240-sup-777@alvh.no-ip.org |
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| Thread: | |
| Lists: | pgsql-hackers |
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(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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