On Mon, Apr 9, 2018 at 7:01 AM, Tomas Vondra <tomas.vondra@xxxxxxxxxxxxxxx> wrote: > The bigger question is whether this can actually detect the issue. If > it's due to an storage issue, then perhaps yes. But if you only see > multixact issues consistently and nothing else, it might easily be a > PostgreSQL bug (in which case the checksum will be correct). You can also run amcheck. Get the version targeting earlier Postgres releases off Github (there are packages for most Linux systems). This can verify that the heap is consistent with indexes. -- Peter Geoghegan
