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