Horton

RE: speeding up planning with partitions

Tsunakawa, Takayuki <tsunakawa.takay@jp.fujitsu.com>

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From: "Tsunakawa, Takayuki" <tsunakawa.takay@jp.fujitsu.com>
To: 'Amit Langote' <Langote_Amit_f8@lab.ntt.co.jp>, Amit Langote <amitlangote09@gmail.com>
Cc: David Rowley <david.rowley@2ndquadrant.com>, Alvaro Herrera <alvherre@2ndquadrant.com>, "Imai, Yoshikazu" <imai.yoshikazu@jp.fujitsu.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2019-02-08T07:43:02Z
Lists: pgsql-hackers 
From: Amit Langote [mailto:Langote_Amit_f8@lab.ntt.co.jp]
> Sent: Friday, February 08, 2019 3:52 PM
> Hmm, I had rebased v20 over HEAD as of yesterday evening.  CF bot seemed
> to be happy with it too:
> 
> http://cfbot.cputube.org/amit-langote.html
> 
> Also, I rebased the patches again on the latest HEAD as of this morning
> and there were no issues.

There seem to have been some modifications between the latest snapshot tarball and HEAD.  I've just managed to apply your v20 to HEAD.  Thanks.


Regards
Takayuki Tsunakawa

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.