replacing join_collapse_limit with a join hardness estimate

Edit
ID 6973
Title replacing join_collapse_limit with a join hardness estimate
CI (CFBot) Summary
Stats (from CFBot) Patch version: v1, Patch count: 6, First patch: +659−0, All patches: +1403−3
Tags Performance
Created 2026-07-02 12:53:24
Last modified 2026-07-02 12:53:40 (2 hours ago)
Latest email 2026-07-02 14:34:41 (1 hour ago)
Status
PG20-2 (2026-09-01 – 2026-09-30): Needs review
Target version
Authors Tomas Vondra (fuzzycz)
Reviewers Become reviewer
Committer
Links
Emails
WIP: replacing join_collapse_limit with "join hardness" estimate
First at 2026-07-01 19:17:55 by Tomas Vondra <tomas at vondra.me>
Latest at 2026-07-02 14:34:41 by John Naylor <johncnaylorls at gmail.com>
Latest attachment (v1-0001-Estimate-join-search-hardness-using-DPccp.patch) at 2026-07-01 19:17:55 from Tomas Vondra <tomas at vondra.me>
    Attachment (v1-0001-Estimate-join-search-hardness-using-DPccp.patch) at 2026-07-01 19:17:55 from Tomas Vondra <tomas at vondra.me> (Patch: Yes)
History
When Who What
2026-07-02 12:53:24 Tomas Vondra (fuzzycz) Attached mail thread 0a377176-bc3c-481d-a4d8-693fde757807@vondra.me
2026-07-02 12:53:24 Tomas Vondra (fuzzycz) Created patch record
Edit