Optimize truncation logic to reduce AccessExclusive lock impact

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ID 7308
Title Optimize truncation logic to reduce AccessExclusive lock impact
CI (CFBot) Summary
Stats (from CFBot) Patch version: v1, Patch count: 1, First patch: +42−8, All patches: +42−8
Tags Good First Review Performance
Created 2026-09-17 02:46:12
Last modified 2026-09-17 02:46:19 (1 hour ago)
Latest email 2026-09-17 02:44:44 (1 hour ago)
Status
PG20-3 (2026-11-01 – 2026-11-30): Needs review
Target version 20
Authors shihao zhong (zhong950419), Stepan Neretin (snpgg)
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Optimize truncation logic to reduce AccessExclusive lock impact
First at 2025-03-18 06:03:38 by Stepan Neretin <slpmcf at gmail.com>
Latest at 2026-09-17 02:44:44 by shihao zhong <zhong950419 at gmail.com>
Latest attachment (v1-0001-Let-smgrtruncate-pass-the-known-fork-sizes-to-Dro.patch) at 2026-09-17 02:44:44 from shihao zhong <zhong950419 at gmail.com>
    Attachment (v1-0001-Let-smgrtruncate-pass-the-known-fork-sizes-to-Dro.patch) at 2026-09-17 02:44:44 from shihao zhong <zhong950419 at gmail.com> (Patch: No)
    Attachment (03164ee7bce36946eaa521f6db2be1b30bead577.diff) at 2025-03-18 06:03:38 from Stepan Neretin <slpmcf at gmail.com> (Patch: Yes)
History
When Who What
2026-09-17 02:46:19 shihao zhong (zhong950419) Changed tags to Good First Review, Performance
2026-09-17 02:46:13 shihao zhong (zhong950419) Attached mail thread CA+Yyo5Trs9x03-sc4PpmEXPY9K_B_jbEbNd01RbF+vOxs3zVUA@mail.gmail.com
2026-09-17 02:46:12 shihao zhong (zhong950419) Created patch record
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