CREATE OR REPLACE FUNCTION drop_ccnew_indexes ()
    RETURNS integer
    AS $$
DECLARE
    i RECORD;
BEGIN
    FOR i IN (
        SELECT
            relname
        FROM
            pg_class
        WHERE
            relname LIKE '%ccnew%')
        LOOP
            EXECUTE 'DROP INDEX ' || i.relname;
        END LOOP;
    RETURN 1;
END;
$$
LANGUAGE plpgsql;