On Tue, Mar 16, 2021 at 2:32 AM Mark Dilger <mark.dil...@enterprisedb.com> wrote: > > We do test corrupt relations. We intentionally corrupt the pages within > corrupted heap tables to check that they get reported as corrupt. (See > src/bin/pg_amcheck/t/004_verify_heapam.pl)
I disagree. You're testing a modified version of the pages in OS cache, which is very likely to be different from real world corruption. Those usually end up with a discrepancy between storage and OS cache and this scenario isn't tested nor documented.
