postgres

Author	SHA1	Message	Date
Tom Lane	5bc561a16a	Add some additional casts and regression tests for the citext data type. David Wheeler	18 years ago
Tom Lane	c8572986ad	Allow I/O conversion casts to be applied to or from any type that is a member of the STRING type category, thereby opening up the mechanism for user-defined types. This is mainly for the benefit of citext, though; there aren't likely to be a lot of types that are all general-purpose character strings. Per discussion with David Wheeler.	18 years ago
Tom Lane	42be2c790f	Adjust citext to make use of the new ability to declare its type category: by putting it into the standard string category, we cause casts from citext to text to be recognized as "preferred" casts. This eliminates the need for creation of alias functions and operators that only serve to prevent ambiguous-function errors; get rid of the ones that were in the original commit.	18 years ago
Tom Lane	ab9907f5e5	Add a new, improved version of citext as a contrib module. David E. Wheeler	18 years ago