Horton

Re: speeding up planning with partitions

Amit Langote <langote_amit_f8@lab.ntt.co.jp>

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From: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>
To: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: Amit Langote <amitlangote09@gmail.com>, "Imai, Yoshikazu" <imai.yoshikazu@jp.fujitsu.com>, David Rowley <david.rowley@2ndquadrant.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2019-01-11T01:18:31Z
Lists: pgsql-hackers 
On 2019/01/11 2:56, Alvaro Herrera wrote:
> On 2019-Jan-10, Amit Langote wrote:
> 
>> Here's v12, which is more or less same as v11 but with the order of
>> patches switched so that the code movement patch is first.  Note that the
>> attached v12-0001 contains no functional changes (but there's tiny note in
>> the commit message mentioning the addition of a tiny function which is
>> just old code).
> 
> Pushed 0001 with some minor tweaks, thanks.

Thank you for the tweaks and committing.

Regards,
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.