drop type "public"."usr_username";

set check_function_bodies = off;

CREATE OR REPLACE FUNCTION public.create_newtype_text(qualified_name text)
 RETURNS void
 LANGUAGE plpgsql
AS $function$
begin
  execute concat('create type ', qualified_name, ' as (str text);');
  execute concat( 'create function '
                , qualified_name || '_to_string(val ' || qualified_name || ')'
                , E' returns text language sql as \'select (val.str);\';'
                );
  execute concat( 'create function '
                , qualified_name || '_of_string(val text)'
                , ' returns ' || qualified_name || E' language sql as \'select row(val);\';'
                );
end;
$function$
;

CREATE OR REPLACE FUNCTION public.usr_username_of_string(val text)
 RETURNS usr_username
 LANGUAGE sql
AS $function$select row(val);$function$
;

CREATE OR REPLACE FUNCTION public.usr_username_to_string(val usr_username)
 RETURNS text
 LANGUAGE sql
AS $function$select (val.str);$function$
;

create type "public"."usr_username" as ("str" text);