ok - maybe you didn't mean that...
you didn't correct Robert on his statement...

"Interbase 6 documentation (since it's the only reference I could find on
Stored Procedures for Firebird) and it stated that the only types that could
not be input parameter types to stored procedures were ARRAY and BLOB types"

but inferred that it was already supported (in Firebird - my assumption)

Alan
PS: I've never read this statement in the documentation but if it's there,
it's clearly wrong