string function

Hi,

I wrote new buildin functions (inspired with ...src/backend/utils/adt):

text *asterisk(text *string) - Returns string, with all letters is
                               '*' and length of new string is equal
                               to original string.

text *pgcrypt(text *string)  - Returns string, cryped via DES crypt(3).


Do somebody want this func. ? I try write more string func. if will
interest.. (in PSQL is not strcat(), md5() ...etc.).

                    Zakkr

PS. sorry I new in PSQL development, but PSQL programing is very interest
for me :-))