Re: Parallel Seq Scan - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Parallel Seq Scan
Date
Msg-id CA+Tgmoa++eibKay2hRwEgV14+TARNRSuVNbFjZKDHBG2y_gvKQ@mail.gmail.com
Whole thread Raw
In response to Re: Parallel Seq Scan  (Noah Misch <noah@leadboat.com>)
List pgsql-hackers
On Fri, Oct 30, 2015 at 11:12 PM, Noah Misch <noah@leadboat.com> wrote:
> On Wed, Oct 28, 2015 at 01:04:12AM +0100, Robert Haas wrote:
>> Well, OK.  That's not strictly a correctness issue, but here's an
>> updated patch along the lines you suggested.
>
>> Finally, have setup_param_list set a new ParamListInfo field,
>> paramMask, to the parameters actually used in the expression, so that
>> we don't try to fetch those that are not needed when serializing a
>> parameter list.  This isn't necessary for performance, but it makes
>
> s/performance/correctness/
>
>> the performance of the parallel executor code comparable to what we
>> do for cases involving cursors.
>
> With that, the patch is ready.

Thanks, committed.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



pgsql-hackers by date:

Previous
From: Alvaro Herrera
Date:
Subject: Re: WIP: Rework access method interface
Next
From: Robert Haas
Date:
Subject: Re: Freeze avoidance of very large table.