Horton

Re: Proposal : Parallel Merge Join

Dilip Kumar <dilipbalaut@gmail.com>

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From: Dilip Kumar <dilipbalaut@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2016-12-13T15:04:04Z
Lists: pgsql-hackers

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On Tue, Dec 13, 2016 at 6:42 AM, Dilip Kumar <dilipbalaut@gmail.com> wrote:
>> This patch is hard to read because it is reorganizing a bunch of code
>> as well as adding new functionality.  Perhaps you could separate it
>> into two patches, one with the refactoring and then the other with the
>> new functionality.
>
> Okay, I can do that.

I have created two patches as per the suggestion.

1. mergejoin_refactoring_v2.patch --> Move functionality of
considering various merge join path into new function.
2. parallel_mergejoin_v2.patch -> This adds the functionality of
supporting partial mergejoin paths. This will apply on top of
mergejoin_refactoring_v2.patch.

-- 
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com

Commits

  1. Consider parallel merge joins.

  2. Preparatory refactoring for parallel merge join support.

  3. Fix parallel hash join path search.