"Dann Corbit" <DCorbit(at)connx(dot)com> writes:
> I have definitely seen serious problems relating to OID wrap.
> We have an application that uses the OID's to create joins.
> We scan tables from a list of source tables from some external (usually
> non-postgresql) database.
> For each of these tables we create a 64 bit checksum for each record and
> store it in a table, along with an OID.
Why in the world aren't you using a serial int8 column, instead?
regards, tom lane