Unable to lint query

{% macro replace_recursive() %}

CREATE OR REPLACE FUNCTION replace_recursive(search text, from_to text [] [])
RETURNS text LANGUAGE plpgsql AS $$
DECLARE
i integer;
result text := search;
BEGIN
FOR i IN 1 .. array_length(from_to, 1) LOOP
result := replace(result, from_to[i][1], from_to[i][2]);
END LOOP;
RETURN result;
END;
$$;

CREATE OR REPLACE FUNCTION replace_delimiters(search text, rep_val text)
RETURNS text LANGUAGE plpgsql AS $$
BEGIN
RETURN regexp_replace(search, '[,\.|:;\/\\_\-\t\r\n]', rep_val, 'g');
END;
$$;

{% endmacro %}

Postgres query in DBT