Propagate stadistinct through GROUP BY/DISTINCT in subqueries and CTEs

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ID 6721
Title Propagate stadistinct through GROUP BY/DISTINCT in subqueries and CTEs
CI (CFBot) Summary
Stats (from CFBot) Patch version: v1, Patch count: 1, First patch: +221−14, All patches: +221−14
Tags Performance
Created 2026-04-29 01:31:37
Last modified 2026-04-29 01:31:37 (4 hours ago)
Latest email 2026-04-14 07:58:51 (2 weeks ago)
Status
PG20-1 (2026-07-01 – 2026-07-31): Needs review
Target version
Authors Richard Guo (richardguo)
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Propagate stadistinct through GROUP BY/DISTINCT in subqueries and CTEs
First at 2026-04-13 01:18:42 by Richard Guo <guofenglinux at gmail.com>
Latest at 2026-04-14 07:58:51 by wenhui qiu <qiuwenhuifx at gmail.com>
Latest attachment (v1-0001-Propagate-stadistinct-through-GROUP-BY-DISTINCT-i.patch) at 2026-04-13 01:18:42 from Richard Guo <guofenglinux at gmail.com>
    Attachment (v1-0001-Propagate-stadistinct-through-GROUP-BY-DISTINCT-i.patch) at 2026-04-13 01:18:42 from Richard Guo <guofenglinux at gmail.com> (Patch: Yes)
History
When Who What
2026-04-29 01:31:37 Richard Guo (richardguo) Attached mail thread CAMbWs49rWYrecgreDhKsfx3VSDW=qo35s+iAmgGu=wpARrM8_g@mail.gmail.com
2026-04-29 01:31:37 Richard Guo (richardguo) Created patch record
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