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Re: [BUGS] pg_dump(1) failures when concurrently refreshing mat views - Mailing list pgsql-bugs

From Nico Williams
Subject Re: [BUGS] pg_dump(1) failures when concurrently refreshing mat views
Date
Msg-id 20170419212356.GA2844@localhost
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In response to Re: [BUGS] pg_dump(1) failures when concurrently refreshing mat views  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: [BUGS] pg_dump(1) failures when concurrently refreshing mat views  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Wed, Apr 19, 2017 at 05:20:31PM -0400, Tom Lane wrote:
> Nico Williams <nico@cryptonector.com> writes:
> > pg_dump(1) gets an EXCLUSIVE LOCK with NOWAIT
> 
> ... uh, really?  It's not supposed to take anything higher than ACCESS
> SHARE, which should coexist fine with anything short of ACCESS EXCLUSIVE.

Whoops, sorry, that's a mistake in drafting the report.  You're right,
it takes an ACCESS SHARE MODE lock, NOWAIT.  The remainder of the report
remains correct.

Nico
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