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Re: LISTEN/NOTIFY and notification timing guarantees

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Joachim Wieland <joe(at)mcknight(dot)de>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: LISTEN/NOTIFY and notification timing guarantees
Date: 2010-02-16 18:30:04
Message-ID: 1266345004.29919.6966.camel@jdavis (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Tue, 2010-02-16 at 10:38 -0500, Tom Lane wrote:
> 2. Add an extra lock to serialize writers to the queue, so that messages
> are guaranteed to be added to the queue in commit order.

I assume this is a heavyweight lock, correct?

	Jeff Davis

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