Hello , I have a query about creating nested functions in PostgreSQL. I am currently using PostgreSQL 15 and I am trying to create a nested function with the following structure: CREATE OR REPLACE FUNCTION external_function () RETURNS void AS $$ DECLARE external_variable; -- Define the internal function FUNCTION internal_function () RETURNS void AS $$ DECLARE internal_variable INT; BEGIN -- Internal function code internal_variable:= 10; RAISE NOTICE 'Internal Variable: %', internal_variable; END; $$ LANGUAGE plpgsql; BEGIN -- External function code external_variable:= 5; RAISE NOTICE 'External variable: %', external_variable; -- Call internal function PERFORM internal_function (); END; $$ LANGUAGE plpgsql; However, I get an error, and I can't compile the function. Thank you very much for your help Rossana Ocampos |