I think what the user is saying is: “When I right-click a table in the DBX Browser, and select ‘CreateTable Script’, the script generated in the SQLEditor contains no constraints that are defined on the table in the database.” Is this the case?
Regardless, this is a bug that has been in the DBX plugin forever it seems. The action generating the script takes a seriously simplistic approach (no constraints, except for PK, and then only for simple one column PK). I will file in bugzilla.