Enumset

This is a PostgreSQL's extension that enable a set of enums

Usage

postgres=# create type colors as enum('red','white','yellow','blue');
CREATE TYPE
postgres=# select '{red, white}'::enumset(colors);
  enumset   
-------------
 {red,white}
(1 row)

postgres=# select '{red, white, nocolor}'::enumset(colors);
ERROR:  invalid input value for enum colors: "nocolor"

postgres=# select '{}'::enumset(colors);
 enumset 
 ---------
  {}
(1 row)