Re: Parallel Seq Scan - Mailing list pgsql-hackers

From Noah Misch
Subject Re: Parallel Seq Scan
Date
Msg-id 20151031031255.GA835242@tornado.leadboat.com
Whole thread Raw
In response to Re: Parallel Seq Scan  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: Parallel Seq Scan  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
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.



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