I am building a query on DBC.Columns to provide a more readable report on our table structures. As part of this, I am trying to include an indicator to identify table columns which are part of a unique primary index or primary key on the table. I tried DBS.Indices, but find no rows in it for any of my database tables (even though many have unique primary indexes). I read the manuals, and DBC.Indices looks like the right place but I see no data in it. Any help is appreciated.