"Referential integrity", yes we did it! With Tensei-Data 1.7.0 we have included support for referential integrity. This means that you don't need to worry any longer if you're writing into a database that uses auto-increment columns for values that are used within foreign keys. You don't even need to do a single thing. If the DFASDL description of the database is correct then Tensei-Data will automatically take the actions necessary to keep integrity.