Adding a table to the Query Builder diagram adds relations between existing tables

Hi,

Quite often when I create a complicated query using the Query Builder placing a table on the diagram adds relations that don't exist in the schema. This alone is quite bothersome, but is simple to notice and correct.

What really gets me upset is that sometimes adding a new table causes relationships to be created ( in the query) between already existing tables.

Did anybody else come across this?

I can reproduce this bug, if necessary.

Sincerely,

Shimon J.

P.S. I am using Toad for IBM DB2 version 6.0.0.373 Z/OS base.