Thanks, that function does help, but it still cannot cast directly to text[]; The point of the functions was only ever to allow for an implicit cast to text[]; My goal is to be able to copy from a simple csv with nonarray entries ("1,2,3,...") and extract text arrays when the target table calls for it by creating an array of size 1. I believe this will require a custom implicit cast from unknown to text[], but if there's a better way to do it, I'd love to know. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Implicit-casts-to-array-types-tp5736582p5736588.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general