pg_stat_replication.*_lag sometimes shows NULL during active replication

Title

CI (CFBot)

Summary

Stats (from CFBot)

Patch version: v4, Patch count: 1, First patch: +44−32, All patches: +44−32

Tags

Bugfix Monitoring Physical Replication

Created

2026-02-24 06:58:44

Last modified

2026-03-09 11:21:58 (1 week ago)

Latest email

2026-03-16 00:25:52 (21 hours ago)

Status

PG19-Final (2026-03-01 – 2026-03-31): Needs review

Target version

stable

Authors

Shinya Kato (shinyakato)

Reviewers

Fujii Masao (masaofujii)Become reviewer

Committer

Fujii Masao (masaofujii)

Links

Emails

pg_stat_replication.*_lag sometimes shows NULL during active replication: First at 2026-02-24 06:53:54 by Shinya Kato <shinya11.kato at gmail.com>
Latest at 2026-03-16 00:25:52 by Shinya Kato <shinya11.kato at gmail.com>
Latest attachment (v4-0001-Avoid-sending-duplicate-WAL-locations-in-standby-.patch) at 2026-03-12 15:27:32 from Fujii Masao <masao.fujii at gmail.com>
    Attachment (v4-0001-Avoid-sending-duplicate-WAL-locations-in-standby-.patch) at 2026-03-12 15:27:32 from Fujii Masao <masao.fujii at gmail.com> (Patch: Yes)
    Attachment (v3-0001-Fix-spurious-NULL-lag-in-pg_stat_replication.patch) at 2026-03-11 02:38:23 from Shinya Kato <shinya11.kato at gmail.com> (Patch: Yes)
    Attachment (v2-0001-Fix-spurious-NULL-lag-in-pg_stat_replication.patch) at 2026-03-06 07:12:48 from Shinya Kato <shinya11.kato at gmail.com> (Patch: Yes)
    Attachment (v1-0001-Fix-pg_stat_replication.-_lag-showing-NULL-during.patch) at 2026-02-24 06:53:54 from Shinya Kato <shinya11.kato at gmail.com> (Patch: Yes)

History

When	Who	What
2026-03-09 11:21:58	Fujii Masao (masaofujii)	Added masaofujii as committer
2026-03-09 11:21:55	Fujii Masao (masaofujii)	Added masaofujii as reviewer
2026-02-24 06:58:44	Shinya Kato (shinyakato)	Attached mail thread CAOzEurTzcUrEzrH97DD7+Yz=HGPU81kzWQonKZvqBwYhx2G9_A@mail.gmail.com
2026-02-24 06:58:44	Shinya Kato (shinyakato)	Created patch record