The aliasses approach does not work for me. So I changed the formula for one of the columns to this: "Worker"."Person Number" AS "Person_Number" It seems to already apply an alias to the column, namely saw_0. Now with this modification you essentially generate an invalid SQL and I can't run the report anymore. Error…

And where do I set that alias? I see on column properties custom headings, though changing that does not affect the SOAP output. Is there another place where I can set an alias?