Horton

Re: Parallel Index Scans

Amit Kapila <amit.kapila16@gmail.com>

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From: Amit Kapila <amit.kapila16@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Peter Geoghegan <pg@heroku.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2016-11-26T11:35:42Z
Lists: pgsql-hackers

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On Sat, Oct 22, 2016 at 9:07 AM, Amit Kapila <amit.kapila16@gmail.com> wrote:
> On Fri, Oct 21, 2016 at 10:55 PM, Robert Haas <robertmhaas@gmail.com> wrote:

I have rebased the patch (parallel_index_scan_v2) based on latest
commit e8ac886c (condition variables).  I have removed the usage of
ConditionVariablePrepareToSleep as that is is no longer mandatory.  I
have also updated docs for wait event introduced by this patch (thanks
to Dilip for noticing it).  There is no change in
parallel_index_opt_exec_support patch, but just attaching here for
easier reference.

-- 
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

Commits

  1. Replace min_parallel_relation_size with two new GUCs.

  2. Factor out logic for computing number of parallel workers.

  3. Support condition variables.

  4. Allow parallel custom and foreign scans.

  5. Add a C API for parallel heap scans.