| From: | Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Rafia Sabih <rafia(dot)sabih(at)enterprisedb(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Parallel Append implementation |
| Date: | 2017-09-28 10:18:11 |
| Message-ID: | CAJ3gD9dK4qxWL+WSZ=bAhBDnQQO0TDUJVB-WOH7hTt5=5QOsXg@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 20 September 2017 at 11:32, Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com> wrote:
> There is still the open point being
> discussed : whether to have non-parallel-aware partial Append path, or
> always have parallel-aware Append paths.
Attached is the revised patch v16. In previous versions, we used to
add a non-parallel-aware Partial Append path having all partial
subpaths if the Parallel Append path already added does not contain
all-partial subpaths. Now in the patch, when we add such Append Path
containing all partial subpaths, we make it parallel-aware (unless
enable_parallelappend is false). So in this case, there will be a
parallel-aware Append path containing one or more non-partial
subpaths, and there will be another parallel-aware Append path
containing all-partial subpaths.
--
Thanks,
-Amit Khandekar
EnterpriseDB Corporation
The Postgres Database Company
| Attachment | Content-Type | Size |
|---|---|---|
| ParallelAppend_v16.patch | application/octet-stream | 58.7 KB |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Alexander Korotkov | 2017-09-28 10:19:38 | Re: GSoC 2017: weekly progress reports (week 6) |
| Previous Message | amul sul | 2017-09-28 09:56:48 | Re: [POC] hash partitioning |