Yuri Gordienko <Uriy(dot)Gordienko(at)software(dot)systema(dot)com(dot)ua> writes: > How can I make custom conversion? The postgres-documentation can't help > me :( I'd suggest you start by copying-and-pasting one of the existing conversion functions. Look under src/backend/utils/mb/conversion_procs/ in the source distribution. regards, tom lane