Horton

Re: speeding up planning with partitions

Amit Langote <amitlangote09@gmail.com>

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From: Amit Langote <amitlangote09@gmail.com>
To: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>, "Imai, Yoshikazu" <imai.yoshikazu@jp.fujitsu.com>, David Rowley <david.rowley@2ndquadrant.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2019-01-09T15:16:26Z
Lists: pgsql-hackers 
On Wed, Jan 9, 2019 at 11:41 PM Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
> > From 3b86331dd5a2368adc39c9fef92f3dd09d817a08 Mon Sep 17 00:00:00 2001
> > From: amit <amitlangote09@gmail.com>
> > Date: Wed, 7 Nov 2018 16:51:31 +0900
> > Subject: [PATCH v11 4/6] Move inheritance expansion code into its own file
>
> I wonder if it would make sense to commit 0004 ahead of the rest?  To
> avoid carrying this huge one over and over ...

Maybe a good idea.  I will rearrange the patches that  way tomorrow.

Thanks,
Amit

Commits

  1. Clean up handling of constraint_exclusion and enable_partition_pruning.

  2. Add test case exercising formerly-unreached code in inheritance_planner.

  3. Speed up planning when partitions can be pruned at plan time.

  4. Avoid crash in partitionwise join planning under GEQO.

  5. Avoid passing query tlist around separately from root->processed_tlist.

  6. Build "other rels" of appendrel baserels in a separate step.

  7. Get rid of duplicate child RTE for a partitioned table.

  8. Rearrange make_partitionedrel_pruneinfo to avoid work when we can't prune.

  9. Don't copy PartitionBoundInfo in set_relation_partition_info.

  10. Move building of child base quals out into a new function

  11. Reorganize planner code moved in b60c39759908

  12. Move inheritance expansion code into its own file

  13. Fix inherited UPDATE/DELETE with UNION ALL subqueries.

  14. Rearrange planner to save the whole PlannerInfo (subroot) for a subquery.