Hi, PFC, PFC schrieb: > By the way, I'd like to declare my zipcode columns as SQL_ASCII > while the rest of my database is in UNICODE, so they are faster to > index and sort. Come on, MySQL does it... Another use case for parametric column definitions - charset definitions - and the first one that cannot be emulated via constraints. Other use cases I remember were range definitions for numbers or PostGIS dimension, subtype and SRID, but those cann all be emulated via checks / constraints. Markus
