Improve UNION's output rowcount estimate

Title

CI (CFBot)

Summary

Stats (from CFBot)

Patch version: v2, Patch count: 1, First patch: +53−38, All patches: +53−38

Tags

Performance

Created

2026-06-22 06:41:29

Last modified

2026-07-01 06:36:19 (3 weeks ago)

Latest email

2026-07-01 06:34:18 (3 weeks ago)

Status

PG20-1 (2026-07-01 – 2026-07-31): Committed

Target version

Authors

Richard Guo (richardguo)

Reviewers

Become reviewer

Committer

Richard Guo (richardguo)

Links

Emails

Improve UNION's output rowcount estimate: First at 2026-06-20 02:21:10 by Richard Guo <guofenglinux at gmail.com>
Latest at 2026-07-01 06:34:18 by Richard Guo <guofenglinux at gmail.com>
Latest attachment (v2-0001-Improve-UNION-s-output-row-count-estimate.patch) at 2026-06-22 02:59:30 from Richard Guo <guofenglinux at gmail.com>
Attachment (v2-0001-Improve-UNION-s-output-row-count-estimate.patch) at 2026-06-22 02:59:30 from Richard Guo <guofenglinux at gmail.com> (Patch: Yes)
Attachment (v1-0001-Improve-UNION-s-output-row-count-estimate.patch) at 2026-06-20 02:21:10 from Richard Guo <guofenglinux at gmail.com> (Patch: Yes)

History

When	Who	What
2026-07-01 06:36:19	Richard Guo (richardguo)	Closed in commitfest PG20-1 with status: Committed
2026-07-01 06:36:19	Richard Guo (richardguo)	Changed committer to richardguo
2026-06-22 06:41:29	Richard Guo (richardguo)	Attached mail thread CAMbWs48Fu1nhGXPa60oc+adj7ge4dn0nHhqngqKvOVVQP61duA@mail.gmail.com
2026-06-22 06:41:29	Richard Guo (richardguo)	Created patch record