Horton

Re: generic plans and "initial" pruning

Amit Langote <amitlangote09@gmail.com>

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From: Amit Langote <amitlangote09@gmail.com>
To: Jacob Champion <jchampion@timescale.com>
Cc: Zhihong Yu <zyu@yugabyte.com>, David Rowley <dgrowleyml@gmail.com>, Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2022-07-06T02:37:57Z
Lists: pgsql-hackers

Attachments

On Wed, Jul 6, 2022 at 2:43 AM Jacob Champion <jchampion@timescale.com> wrote:
> On Fri, May 27, 2022 at 1:09 AM Amit Langote <amitlangote09@gmail.com> wrote:
> > 0001 contains the mechanical changes of moving PartitionPruneInfo out
> > of Append/MergeAppend into a list in PlannedStmt.
> >
> > 0002 is the main patch to "Optimize AcquireExecutorLocks() by locking
> > only unpruned partitions".
>
> This patchset will need to be rebased over 835d476fd21; looks like
> just a cosmetic change.

Thanks for the heads up.

Rebased and also fixed per comments given by Zhihong Yu on May 28.

-- 
Thanks, Amit Langote
EDB: http://www.enterprisedb.com

Commits

  1. Stamp 19beta1.

  2. Revert "Don't lock partitions pruned by initial pruning"

  3. Ensure first ModifyTable rel initialized if all are pruned

  4. Fix bug in cbc127917 to handle nested Append correctly

  5. Remove unstable test suite added by 525392d57

  6. Don't lock partitions pruned by initial pruning

  7. Fix an oversight in cbc127917 to handle MERGE correctly

  8. Track unpruned relids to avoid processing pruned relations

  9. Perform runtime initial pruning outside ExecInitNode()

  10. Move PartitionPruneInfo out of plan nodes into PlannedStmt

  11. Fix setrefs.c's failure to do expression processing on prune steps.

  12. Remove obsolete executor cleanup code

  13. Revert "Move PartitionPruneInfo out of plan nodes into PlannedStmt"

  14. Move PartitioPruneInfo out of plan nodes into PlannedStmt

  15. Refactor and cleanup runtime partition prune code a little

  16. Remove some unnecessary fields from Plan trees.

  17. Remove more redundant relation locking during executor startup.

  18. Shut down Gather's children before shutting down Gather itself.