Re: Parallel Index Scans
Amit Kapila <amit.kapila16@gmail.com>
From: Amit Kapila <amit.kapila16@gmail.com>
To: Michael Banck <michael.banck@credativ.de>
Cc: Robert Haas <robertmhaas@gmail.com>, Anastasia Lubennikova <a.lubennikova@postgrespro.ru>, Anastasia Lubennikova <lubennikovaav@gmail.com>,
pgsql-hackers <pgsql-hackers@postgresql.org>, Rahila Syed <rahilasyed.90@gmail.com>
Date: 2017-03-06T11:33:50Z
Lists: pgsql-hackers
On Mon, Mar 6, 2017 at 4:57 PM, Michael Banck <michael.banck@credativ.de> wrote: > Hi, > > On Thu, Feb 16, 2017 at 08:14:28AM +0530, Amit Kapila wrote: >> On Thu, Feb 16, 2017 at 12:27 AM, Robert Haas <robertmhaas@gmail.com> wrote: >> > On Wed, Feb 15, 2017 at 1:39 PM, Robert Haas <robertmhaas@gmail.com> wrote: >> >> On Wed, Feb 15, 2017 at 7:11 AM, Amit Kapila <amit.kapila16@gmail.com> wrote:> >> >>> support related patch. In anycase, to avoid confusion I am attaching >> >>> all the three patches with this e-mail. >> >> >> >> Committed guc_parallel_index_scan_v1.patch, with changes to the >> >> documentation and GUC descriptions. >> > >> > And committed parallel_index_opt_exec_support_v10.patch as well, with >> > a couple of minor tweaks. >> >> Thanks a lot! I think this is a big step forward for parallelism in >> PostgreSQL. Now, we have another way to drive parallel scans and I >> hope many more queries can use parallelism. > > Shouldn't the chapter 15.3 "Parallel Plans" in the documentation be > updated for this as well, or is this going to be taken care as a batch > at the ned of the development cycle, pending other added parallization > features? > Robert mentioned up thread that it is better to update it once at end rather than with each feature. -- With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com
Commits
-
Replace min_parallel_relation_size with two new GUCs.
- 51ee6f3160d2 10.0 landed
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Factor out logic for computing number of parallel workers.
- 716c7d4b242f 10.0 cited
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Support condition variables.
- e8ac886c2477 10.0 cited
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Allow parallel custom and foreign scans.
- 69d34408e5e7 9.6.0 cited
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Add a C API for parallel heap scans.
- ee7ca559fcf4 9.6.0 cited