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Re: Hot Standby query cancellation and Streaming Replication integration

From: Greg Stark <gsstark(at)mit(dot)edu>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Hot Standby query cancellation and Streaming Replication integration
Date: 2010-02-27 04:02:24
Message-ID: 407d949e1002262002s6c0a0600pb98ed7c21cd09b7d@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Fri, Feb 26, 2010 at 9:44 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Greg Stark <gsstark(at)mit(dot)edu> writes:
>
>> What extra entries?
>
> Locks, just for starters.  I haven't read enough of the code yet to know
> what else Simon added.  In the past it's not been necessary to record
> any transient information in WAL, but now we'll have to.

Haven't we been writing locks to the WAL since two-phase commit?

-- 
greg

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