On Thu, May 7, 2015 at 11:49 PM, Rui Hai Jiang <ruihaijiang@msn.com> wrote:
> Does anyone know when are charin(),int2in() and int4in() called?
Those are input functions for respectively the types char, smallint
and int. Look at the docs here for more details:
http://www.postgresql.org/docs/devel/static/sql-createtype.html
"The input_function converts the type's external textual
representation to the internal representation used by the operators
and functions defined for the type."
Regards,
--
Michael