Commit Graph

3 Commits

Author SHA1 Message Date
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.
2008-07-30 21:23:17 +00:00
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.
2008-07-30 17:08:52 +00:00
Tom Lane ab9907f5e5 Add a new, improved version of citext as a contrib module.
David E. Wheeler
2008-07-29 18:31:20 +00:00