Re: Parallel Seq Scan
| От | Noah Misch |
|---|---|
| Тема | Re: Parallel Seq Scan |
| Дата | |
| Msg-id | 20151031031255.GA835242@tornado.leadboat.com обсуждение |
| Ответ на | Re: Parallel Seq Scan (Robert Haas <robertmhaas@gmail.com>) |
| Ответы |
Re: Parallel Seq Scan
|
| Список | 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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