code: def upgradeSystemOid(store):
      
      store.transact(
          _upgradeTableOid, store, 'axiom_types',
          lambda: store.executeSchemaSQL(CREATE_TYPES))
      store.transact(
          _upgradeTableOid, store, 'axiom_objects',
          lambda: store.executeSchemaSQL(CREATE_OBJECTS),
          lambda: store.executeSchemaSQL(CREATE_OBJECTS_IDX))
docs: Upgrade the system tables to use explicit oid columns.