PostgreSQL函数更新一行的特定列

Question

I am trying to make a function which calls a specific data from the table but why it's showing column doesn't exist even tho its on database .

CREATE FUNCTION public."updateDB"(IN userid bigint DEFAULT 00000, OUT uinfo json, IN clname text DEFAULT info)
RETURNS json
LANGUAGE 'plpgsql'
AS $BODY$
BEGIN
    SELECT clname into uinfo 
    FROM public.users 
    WHERE uid = userid;
END;
$BODY$;

but when i try to call it , it shows this error here i tried to make info default so this error occurs . If i don't make anything default and run the function from code , it shows that error again.

Answer 1

您需要引用文本，否则postgres认为您是在指一列

IN clname text DEFAULT 'info'