ODBC Error??

Dear ladies and gentleman,

for managing our Postgresql database we are using a commercial modeling
tool. For that we need to establish an ODBC connection. It works quite well
to reverse engineer the database with one table, if you like to do more you
get the following error message from the database server:
"Adding missing FROM-clause entry for table "pg_namespace""

Does someone know how to solve this problem?

Thanks

regards

gunter