---

SELECT
    n.nspname AS schema_name,
    p.proname AS function_name
FROM pg_proc p
JOIN pg_namespace n
    ON n.oid = p.pronamespace
WHERE pg_get_functiondef(p.oid) ILIKE '%initial_payment%'
   OR pg_get_functiondef(p.oid) ILIKE '%current_payment%'
ORDER BY n.nspname, p.proname;