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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 14:05:39
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Lists: pgsql-hackers
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.



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