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 <dgrowleyml@gmail.com>
Date: 2022-03-31T11:11:54Z
Lists: pgsql-hackers 
On Thu, Mar 31, 2022 at 6:55 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> I'm looking at 0001 here with intention to commit later.  I see that
> there is some resistance to 0004, but I think a final verdict on that
> one doesn't materially affect 0001.

Thanks.

While the main goal of the refactoring patch is to make it easier to
review the more complex changes that 0004 makes to execPartition.c, I
agree it has merit on its own.  Although, one may say that the bit
about providing a PlanState-independent ExprContext is more closely
tied with 0004's requirements...

-- 
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.