Horton

Re: generic plans and "initial" pruning

Amit Langote <amitlangote09@gmail.com>

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From: Amit Langote <amitlangote09@gmail.com>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>, "David Rowley *EXTERN*" <dgrowleyml@gmail.com>
Date: 2022-04-05T02:29:49Z
Lists: pgsql-hackers

Attachments

On Mon, Apr 4, 2022 at 9:55 PM Amit Langote <amitlangote09@gmail.com> wrote:
> On Sun, Apr 3, 2022 at 8:33 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> > I think the names ExecCreatePartitionPruneState and
> > ExecInitPartitionPruning are too confusingly similar.  Maybe the former
> > should be renamed to somehow make it clear that it is a subroutine for
> > the former.
>
> Ah, yes.  I've taken out the "Exec" from the former.

While at it, maybe it's better to rename ExecInitPruningContext() to
InitPartitionPruneContext(), which I've done in the attached updated
patch.

-- 
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.