Re: Parallel Aggregate - Mailing list pgsql-hackers

From Haribabu Kommi
Subject Re: Parallel Aggregate
Date
Msg-id CAJrrPGcJViiBtbakJbNPJ=jXW+P2p9ueaw9eHq3+CFOBHPug5A@mail.gmail.com
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In response to Re: Parallel Aggregate  (Haribabu Kommi <kommi.haribabu@gmail.com>)
Responses Re: Parallel Aggregate
Re: Parallel Aggregate
List pgsql-hackers
On Sun, Mar 6, 2016 at 10:21 PM, Haribabu Kommi
<kommi.haribabu@gmail.com> wrote:
>
> Pending:
> 1. Explain plan needs to be corrected for parallel grouping similar like
> parallel aggregate.

Here I attached update patch with further changes,
1. Explain plan changes for parallel grouping

2. Temporary fix for float aggregate types in _equalAggref because of
a change in aggtype to trans type, otherwise the parallel aggregation
plan failure in set_plan_references. whenever the aggtype is not matched,
it verifies with the trans type also.

3. Generates parallel path for all partial paths and add it to the path_list,
based on the cheapest_path, the plan is chosen.


To apply this patch, first apply the patch in [1]

[1] - http://www.postgresql.org/message-id/14172.1457228315@sss.pgh.pa.us


Regards,
Hari Babu
Fujitsu Australia

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