If the primary database does not use one of the system-provided function-string classes (rs_sqlserver_function_class, rs_default_function_class, rs_db2_function_class) or a function-string class that is a child of rs_default_function_class or rs_db2_function_class, make sure there are function strings for the rs_select function that match the where clause of the create subscription or define subscription command.
