Improve row estimation with multi-column unique indexes

Edit
ID 6932
Title Improve row estimation with multi-column unique indexes
CI (CFBot) Summary
Stats (from CFBot) Patch version: v3, Patch count: 3, First patch: +280−0, All patches: +669−284
Tags Performance
Created 2026-06-24 08:25:56
Last modified 2026-06-24 08:25:57 (2 weeks ago)
Latest email 2026-07-01 15:21:18 (1 week ago)
Status
PG20-1 (2026-07-01 – 2026-07-31): Needs review
Target version 20
Authors Anthonin Bonnefoy (bonnefoa)
Reviewers Become reviewer
Committer
Links
Emails
Improve row estimation with multi-column unique indexes
First at 2026-06-24 08:24:05 by Anthonin Bonnefoy <anthonin.bonnefoy at datadoghq.com>
Latest at 2026-07-01 15:21:18 by Anthonin Bonnefoy <anthonin.bonnefoy at datadoghq.com>
Latest attachment (v3-0002-Adjust-row-estimation-and-index-selectivity-with-.patch) at 2026-07-01 15:21:18 from Anthonin Bonnefoy <anthonin.bonnefoy at datadoghq.com>
    Attachment (v3-0002-Adjust-row-estimation-and-index-selectivity-with-.patch) at 2026-07-01 15:21:18 from Anthonin Bonnefoy <anthonin.bonnefoy at datadoghq.com> (Patch: Yes)
    Attachment (v2-0001-Improve-estimates-for-multicolumn-unique-indexes.patch) at 2026-06-28 05:13:47 from Chengpeng Yan <chengpeng_yan at outlook.com> (Patch: Yes)
    Attachment (v1-0001-Adjust-row-estimation-and-index-selectivity-with-.patch) at 2026-06-24 08:24:05 from Anthonin Bonnefoy <anthonin.bonnefoy at datadoghq.com> (Patch: Yes)
History
When Who What
2026-06-24 08:25:57 Anthonin Bonnefoy (bonnefoa) Attached mail thread CAO6_XqoiwRoVFS1x1oaUpwUi5kKwOj1S1JVYBO2QX91ORJJoxg@mail.gmail.com
2026-06-24 08:25:56 Anthonin Bonnefoy (bonnefoa) Created patch record
Edit