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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Rural Hunter <ruralhunter@gmail.com>
cc: "pgsql-performance@postgresql.org" <pgsql-performance@postgresql.org>
Subject: Re: Very slow planning performance on partition table
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Comments: In-reply-to Rural Hunter <ruralhunter@gmail.com>
 message dated "Sun, 27 Jul 2014 23:44:09 +0800"
Date: Sun, 27 Jul 2014 12:28:07 -0400
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Rural Hunter <ruralhunter@gmail.com> writes:
>> Does that indicate something? seems it's waiting for some lock.

Yeah, that's what the stack trace suggests.  Have you looked into pg_locks
and pg_stat_activity to see which lock it wants and what's holding said
lock?

			regards, tom lane


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