Hi, On 2020-10-03 12:58:01 +0530, Kuntal Ghosh wrote: > IIUC, there can be a HOT-updated tuple which is not initially pruned > by heap_page_prune but later diagnosed HEAPTUPLE_DEAD by > HeapTupleSatisfiesVacuum (Since OldestXmin can be updated by the time > we call HeapTupleSatisfiesVacuum and xmax becomes older than > OldestXmin).
Hm? OldestXmin is constant over the course of vacuum, no? Greetings, Andres Freund