| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: EXPLAIN VERBOSE with parallel Aggregate |
| Date: | 2016-04-27 02:30:53 |
| Message-ID: | CA+TgmoaO0S2p0MG3TdCteOc86r1KEH_iioGw+PK+ooBYEMZMmg@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Tue, Apr 26, 2016 at 9:56 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Tue, Apr 26, 2016 at 9:14 PM, David Rowley
> <david(dot)rowley(at)2ndquadrant(dot)com> wrote:
>> I'd also have expected the output of both partial nodes to be the
>> same, i.e. both prefixed with PARTIAL. Is it intended that they don't?
>> or have I made some other mistake?
>
> No, that's a defect in the patch. I didn't consider that we need to
> support nodes with finalizeAggs = false and combineStates = true,
> which is why that ERROR was there. Working on a fix now.
I think this version should work, provided you use
partial_grouping_target where needed.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
| Attachment | Content-Type | Size |
|---|---|---|
| parallel-aggregate-explain-v2.patch | application/x-patch | 13.1 KB |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Robert Haas | 2016-04-27 02:37:07 | Re: plan for beta1 & open issues |
| Previous Message | Robert Haas | 2016-04-27 02:23:04 | Re: Removing faulty hyperLogLog merge function |