Hackers, While working on the patch fixing the situation when slot's restart_lsn ends up pointing to a removed WAL segment [1], we discovered that sometimes slot's restart_lsn can go backward [2][3][4]. Hayato Kuroda proposed a patch [5], which improves comments by describing this behavior. As proposed by Amit Kapila [6], I'm starting a new thread about this comments patch.
Any feedback on this patch? Links. 1. https://www.postgresql.org/message-id/1d12d2-67235980-35-19a406a0%4063439497 2. https://www.postgresql.org/message-id/OSCPR01MB1496646E4CF72B9231DB711AFF57DA%40OSCPR01MB14966.jpnprd01.prod.outlook.com 3. https://www.postgresql.org/message-id/CALDaNm1prhebmnAY_0%3D5UJ-WodSSbj6C8X-igrGa1EamtLw5BA%40mail.gmail.com 4. https://www.postgresql.org/message-id/CALDaNm34RtDat%2BkZE_1%2BCY86pDLJM18hxNRTZx3CCGE%3DaN%3D_%3DA%40mail.gmail.com 5. https://www.postgresql.org/message-id/OSCPR01MB1496634CF3BFEC3A491CF8111F547A%40OSCPR01MB14966.jpnprd01.prod.outlook.com 6. https://www.postgresql.org/message-id/CAA4eK1%2BqYg2nwa7TVz2xN-9FDZHLUGT7NLWHtfdeaf32KN3QEQ%40mail.gmail.com ------ Regards, Alexander Korotkov Supabase
0001-Update-comment-for-last_saved_restart_lsn.patch
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