Убрал лишнюю проверку в функции

function1.sql

@@ -4,10 +4,6 @@ create or replace function convert_to_initials(
     p_patronymic varchar
 ) returns varchar as $$
 begin
-    if p_name is null or p_name = '' or p_surname is null or p_surname = '' then
-        return '';
-    end if;
-
     if p_patronymic is null or p_patronymic = '' then
         return concat(substring(p_name from 1 for 1), '. ', p_surname);
     end if;