From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Tatsuo Ishii <ishii(at)postgresql(dot)org>, pgsql-performance(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: pg_dump and thousands of schemas |
Date: | 2012-08-30 20:53:39 |
Message-ID: | 20120830205339.GZ8753@momjian.us |
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Lists: | pgsql-hackers pgsql-performance |
On Thu, Aug 30, 2012 at 04:51:56PM -0400, Tom Lane wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > On Thu, May 31, 2012 at 09:20:43AM +0900, Tatsuo Ishii wrote:
> >>> Ok, I modified the part of pg_dump where tremendous number of LOCK
> >>> TABLE are issued. I replace them with single LOCK TABLE with multiple
> >>> tables. With 100k tables LOCK statements took 13 minutes in total, now
> >>> it only takes 3 seconds. Comments?
>
> >> Shall I commit to master and all supported branches?
>
> > Was this applied?
>
> No, we fixed the server side instead.
Again, thanks. I knew we fixed the server, but wasn't clear that made
the client changes unnecessary, but I think I now do remember discussion
about that.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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