Andres Freund <and...@anarazel.de> writes: > The only thing I can really conclude here is that we apparently end up with > the same checksum for exactly the modifications we are doing? Just on those > two damn instances? Reliably?
IIRC, the table's OID or relfilenode enters into the checksum. Could it be that assigning a specific OID to the table allows this to happen, and these two animals are somehow assigning that OID while others are using some slightly different OID? regards, tom lane