columns projection from database inputs in DataJoin in script

Hi all,

I have a problem generating a data mouvement model using script (no problem manually). 

Here's an example (I show only the part where I have a problem):

Here's the join:

In this example, I have no problem to create transformation processes, control flows, data connections, database definitions, associate database inputs, associated data flows, join(s) and to link the final table but only fields from the first table (xtr_Shipping address in this case) are present in Data Structure Column list, no fields from xtr_client.

Steps followed are:

- create a datatransformaiontask and all steps (joins, transformation, ...)

- associate db output and dataflow

- associate all db input and all data flows

- create join

I'm searching why I don't have projection of fields from xtr_client.  Have you an idea ?

Kr,

Thierry