Reduce unnecessary locking of pruned partitions when reusing cached plans

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ID 6216
Title Reduce unnecessary locking of pruned partitions when reusing cached plans
CI (CFBot) Summary
Stats (from CFBot) Patch version: v1, Patch count: 4, First patch: +43−28, All patches: +745−83
Topic Performance
Tags Performance
Created 2025-11-12 14:22:28
Last modified 2025-11-12 14:22:29 (5 hours ago)
Latest email 2025-11-12 14:17:43 (6 hours ago)
Status
PG19-4 (2026-01-01 – 2026-01-31): Needs review
Target version 19
Authors Amit Langote (amitlan)
Reviewers Become reviewer
Committer
Links
Emails
generic plans and "initial" pruning
First at 2021-12-25 03:36:00 by Amit Langote <amitlangote09 at gmail.com>
Latest at 2025-11-12 14:17:43 by Amit Langote <amitlangote09 at gmail.com>
Latest attachment (v1-0001-Fix-bug-in-cbc127917-to-handle-nested-Append-corr.patch) at 2025-02-23 08:35:49 from Amit Langote <amitlangote09 at gmail.com>
    Attachment (v1-0001-Fix-bug-in-cbc127917-to-handle-nested-Append-corr.patch) at 2025-02-23 08:35:49 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (0001-Fix-an-oversight-in-cbc127917-for-MERGE-handling.patch) at 2025-02-15 07:51:09 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v63-0001-Don-t-lock-partitions-pruned-by-initial-pruning.patch) at 2025-02-12 11:53:50 from Amit Langote <amitlangote09 at gmail.com> (Patch: No)
    Attachment (v62-0001-Track-unpruned-relids-to-avoid-processing-pruned.patch) at 2025-02-06 02:35:47 from Amit Langote <amitlangote09 at gmail.com> (Patch: No)
    Attachment (v61-0001-Track-unpruned-relids-to-avoid-processing-pruned.patch) at 2025-01-31 08:31:44 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v60-0002-Perform-runtime-initial-pruning-outside-ExecInit.patch) at 2025-01-23 07:15:48 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v59-0002-Initialize-PartitionPruneContexts-lazily.patch) at 2024-12-12 07:58:54 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (0005-Remove-the-need-to-check-if-plan-is-valid-from-Execu.patch) at 2024-12-09 07:10:24 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (pruning-in-ExecutorStart.diff) at 2024-12-06 08:18:47 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v58-0001-Move-PartitionPruneInfo-out-of-plan-nodes-into-P.patch) at 2024-12-05 12:03:09 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (xeon-complete.pdf) at 2024-12-01 18:36:21 from Tomas Vondra <tomas at vondra.me> (Patch: No)
    Attachment (v57-0002-Initialize-PartitionPruneContexts-lazily.patch) at 2024-10-25 12:30:24 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v56-0005-Handle-CachedPlan-invalidation-in-the-executor.patch) at 2024-09-20 08:10:03 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v55-0001-Move-PartitionPruneInfo-out-of-plan-nodes-into-P.patch) at 2024-09-19 12:10:04 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v54-0003-Defer-locking-of-runtime-prunable-relations-to-e.patch) at 2024-09-19 08:39:51 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v53-0001-Move-PartitionPruneInfo-out-of-plan-nodes-into-P.patch) at 2024-09-17 12:57:03 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v52-0001-Defer-locking-of-runtime-prunable-relations-to-e.patch) at 2024-09-05 09:55:47 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v51-0003-Handle-CachedPlan-invalidation-in-the-executor.patch) at 2024-08-29 13:34:17 from Amit Langote <amitlangote09 at gmail.com> (Patch: No)
    Attachment (v50-0002-Add-field-to-store-parent-relids-to-Append-Merge.patch) at 2024-08-15 12:57:40 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v49-0006-Add-field-to-store-parent-relids-to-Append-Merge.patch) at 2023-11-20 04:29:53 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v48-0007-Delay-locking-of-child-tables-in-cached-plans-un.patch) at 2023-09-28 08:26:27 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v47-0005-Teach-the-executor-to-lock-child-tables-in-some-.patch) at 2023-09-26 13:06:12 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v47-0005-Add-field-to-store-parent-relids-to-Append-Merge.patch) at 2023-09-06 09:12:28 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v46-0004-Make-ExecutorStart-return-early-upon-plan-invali.patch) at 2023-09-05 07:13:09 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v45-0006-Track-opened-range-table-relations-in-a-List-in-.patch) at 2023-08-11 05:31:03 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v44-0004-Set-inFromCl-to-false-in-child-table-RTEs.patch) at 2023-08-03 08:37:39 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v43-0002-Add-field-to-store-parent-relids-to-Append-Merge.patch) at 2023-08-02 13:39:45 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v42-0001-Add-field-to-store-parent-relids-to-Append-Merge.patch) at 2023-07-18 07:26:35 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v41-0001-Add-field-to-store-parent-relids-to-Append-Merge.patch) at 2023-07-13 12:58:38 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v40-0004-Track-opened-range-table-relations-in-a-List-in-.patch) at 2023-07-06 14:29:10 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v39-0004-Track-opened-range-table-relations-in-a-List-in-.patch) at 2023-06-08 14:23:21 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v38-0001-Add-field-to-store-partitioned-relids-to-Append-.patch) at 2023-03-27 14:00:38 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v37-0001-Add-field-to-store-partitioned-relids-to-Append-.patch) at 2023-03-27 08:18:20 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v36-0003-Track-opened-range-table-relations-in-a-List-in-.patch) at 2023-03-22 12:48:49 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v35-0003-Track-opened-range-table-relations-in-a-List-in-.patch) at 2023-03-14 10:07:41 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v34-0001-Move-AcquireExecutorLocks-s-responsibility-into-.patch) at 2023-03-02 13:52:53 from Amit Langote <amitlangote09 at gmail.com> (Patch: No)
    Attachment (v33-0001-Move-AcquireExecutorLocks-s-responsibility-into-.patch) at 2023-02-03 13:01:09 from Amit Langote <amitlangote09 at gmail.com> (Patch: No)
    Attachment (v32-0001-Move-AcquireExecutorLocks-s-responsibility-into-.patch) at 2023-02-02 14:49:58 from Amit Langote <amitlangote09 at gmail.com> (Patch: No)
    Attachment (v31-0001-Move-ExecutorStart-closer-to-GetCachedPlan.patch) at 2023-01-27 07:01:05 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v30-0002-In-GetCachedPlan-only-lock-unpruned-partitions.patch) at 2022-12-16 02:33:53 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v29-0001-Preparatory-refactoring-before-reworking-CachedP.patch) at 2022-12-14 08:35:47 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v28-0002-Add-root_parent_relids-to-PartitionPruneResult.patch) at 2022-12-05 06:08:09 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v27-0001-Optimize-AcquireExecutorLocks-by-locking-only-un.patch) at 2022-12-05 03:00:01 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v26-0002-Add-root_parent_relids-to-PartitionPruneResult.patch) at 2022-12-02 10:40:42 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v25-0001-Optimize-AcquireExecutorLocks-by-locking-only-un.patch) at 2022-12-01 12:43:28 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (PartitionPruneInfo-relids.patch) at 2022-12-01 07:59:25 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v24-0002-Optimize-AcquireExecutorLocks-by-locking-only-un.patch) at 2022-11-08 06:22:32 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v23-0001-Move-PartitioPruneInfo-out-of-plan-nodes-into-Pl.patch) at 2022-10-27 02:41:55 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v22-0001-Move-PartitioPruneInfo-out-of-plan-nodes-into-Pl.patch) at 2022-10-17 09:29:48 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v21-0001-Move-PartitioPruneInfo-out-of-plan-nodes-into-Pl.patch) at 2022-10-12 07:36:15 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v20-0001-Move-PartitioPruneInfo-out-of-plan-nodes-into-Pl.patch) at 2022-07-27 03:00:57 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v19-0001-Move-PartitioPruneInfo-out-of-plan-nodes-into-Pl.patch) at 2022-07-13 07:03:51 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v18-0002-Optimize-AcquireExecutorLocks-by-locking-only-un.patch) at 2022-07-13 06:40:10 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v17-0001-Move-PartitioPruneInfo-out-of-plan-nodes-into-Pl.patch) at 2022-07-06 02:37:57 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v16-0001-Move-PartitioPruneInfo-out-of-plan-nodes-into-Pl.patch) at 2022-05-27 08:09:46 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v15-0001-Optimize-AcquireExecutorLocks-to-skip-pruned-par.patch) at 2022-04-11 03:05:19 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v14-0001-Optimize-AcquireExecutorLocks-to-skip-pruned-par.patch) at 2022-04-08 11:45:37 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (misc_fixes.patch.txt) at 2022-04-08 11:15:53 from David Rowley <dgrowleyml at gmail.com> (Patch: Yes)
    Attachment (v13-0001-Optimize-AcquireExecutorLocks-to-skip-pruned-par.patch) at 2022-04-08 05:49:39 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v12-0001-Optimize-AcquireExecutorLocks-to-skip-pruned-par.patch) at 2022-04-07 08:27:50 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v11-0001-Optimize-AcquireExecutorLocks-to-skip-pruned-par.patch) at 2022-04-06 07:20:46 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v10-0001-Some-refactoring-of-runtime-pruning-code.patch) at 2022-04-05 02:29:49 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v9-0001-Some-refactoring-of-runtime-pruning-code.patch) at 2022-04-04 12:55:54 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v8-0004-Optimize-AcquireExecutorLocks-to-skip-pruned-part.patch) at 2022-03-31 03:25:20 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v7-0002-Add-Merge-Append.partitioned_rels.patch) at 2022-03-28 07:28:46 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v6-0003-Add-a-plan_tree_walker.patch) at 2022-03-28 07:17:00 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v5-0002-Add-a-plan_tree_walker.patch) at 2022-03-11 14:35:37 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v4-0001-Invent-a-new-executor-prep-phase.patch) at 2022-02-10 08:13:52 from Amit Langote <amitlangote09 at gmail.com> (Patch: No)
    Attachment (v3-0001-Teach-AcquireExecutorLocks-to-acquire-fewer-locks.patch) at 2022-01-18 01:32:57 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v2-0001-Teach-AcquireExecutorLocks-to-acquire-fewer-locks.patch) at 2022-01-14 14:10:43 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
    Attachment (v1-0001-Teach-AcquireExecutorLocks-to-acquire-fewer-locks.patch) at 2021-12-25 03:36:00 from Amit Langote <amitlangote09 at gmail.com> (Patch: Yes)
History
When Who What
2025-11-12 14:22:29 Amit Langote (amitlan) Attached mail thread CA+HiwqFGkMSge6TgC9KQzde0ohpAycLQuV7ooitEEpbKB0O_mg@mail.gmail.com
2025-11-12 14:22:29 Amit Langote (amitlan) Created patch record
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