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Re: Parallel query execution

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Parallel query execution
Date: 2013-01-16 17:29:16
Message-ID: 50F6E36C.8070507@dunslane.net (view raw or flat)
Thread:
Lists: pgsql-hackers
On 01/16/2013 12:20 PM, Bruce Momjian wrote:
> On Wed, Jan 16, 2013 at 09:05:39AM -0500, Andrew Dunstan wrote:
>> On 01/15/2013 11:32 PM, Bruce Momjian wrote:
>>> On Wed, Jan 16, 2013 at 01:28:18PM +0900, Michael Paquier wrote:
>>>> On Wed, Jan 16, 2013 at 1:22 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
>>>>
>>>>      Claudio, Stephen,
>>>>
>>>>      It really seems like the areas where we could get the most "bang for the
>>>>      buck" in parallelism would be:
>>>>
>>>>      1. Parallel sort
>>>>      2. Parallel aggregation (for commutative aggregates)
>>>>      3. Parallel nested loop join (especially for expression joins, like GIS)
>>>>
>>>> parallel data load? :/
>>> We have that in pg_restore, and I thinnk we are getting parallel dump in
>>> 9.3, right?  Unfortunately, I don't see it in the last 9.3 commit-fest.
>>> Is it still being worked on?
>>>
>>
>> I am about half way through reviewing it. Unfortunately paid work
>> take precedence over unpaid work.
> Do you think it will make it into 9.3?

Yes, I hope it will.

cheers

andrew



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