Improving planner's estimates of TupleHashTable sizes

Title

CI (CFBot)

Summary

Stats (from CFBot)

Patch version: v3, Patch count: 2, First patch: +206−31, All patches: +261−126

Topic

Performance

Tags

Created

2025-10-31 18:16:46

Last modified

2025-11-02 22:00:22 (2 weeks ago)

Latest email

2025-11-02 21:30:45 (2 weeks ago)

Status

PG19-3 (2025-11-01 – 2025-11-30): Committed

Target version

Authors

Tom Lane (tgl)

Reviewers

Committer

Tom Lane (tgl)

Links

Emails

Should HashSetOp go away: First at 2025-10-26 16:47:36 by Jeff Janes <jeff.janes at gmail.com>
Latest at 2025-11-02 21:30:45 by Tom Lane <tgl at sss.pgh.pa.us>
Latest attachment (v3-0001-Improve-planner-s-estimates-of-tuple-hash-table-s.patch) at 2025-11-02 16:26:06 from Tom Lane <tgl at sss.pgh.pa.us>
    Attachment (v3-0001-Improve-planner-s-estimates-of-tuple-hash-table-s.patch) at 2025-11-02 16:26:06 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (v2-0001-Improve-planner-s-estimates-of-tuple-hash-table-s.patch) at 2025-10-31 19:22:27 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (v1-0001-Improve-planner-s-estimates-of-tuple-hash-table-s.patch) at 2025-10-31 18:09:48 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)
    Attachment (use-bump-context-in-nodeSetOp.patch) at 2025-10-26 20:16:20 from Tom Lane <tgl at sss.pgh.pa.us> (Patch: Yes)

History

When	Who	What
2025-11-02 22:00:22	Tom Lane (tgl)	Closed in commitfest PG19-3 with status: Committed
2025-11-02 22:00:22	Tom Lane (tgl)	Changed committer to tgl
2025-10-31 18:16:46	Tom Lane (tgl)	Attached mail thread CAMkU=1zia0JfW_QR8L5xA2vpa0oqVuiapm78h=WpNsHH13_9uw@mail.gmail.com
2025-10-31 18:16:46	Tom Lane (tgl)	Created patch record