SET sql_log_bin=0;
USE billing;

ALTER TABLE lnp_numbers DROP FOREIGN KEY l_n_lnpproid_ref;
DROP INDEX l_n_lnpproidnumber_idx ON lnp_numbers;
CREATE INDEX l_n_lnpproid_ref ON lnp_numbers (lnp_provider_id);
ALTER TABLE lnp_numbers ADD CONSTRAINT l_n_lnpproid_ref FOREIGN KEY (lnp_provider_id) REFERENCES lnp_providers (id) ON DELETE CASCADE ON UPDATE CASCADE;

UPDATE lnp_numbers
SET number=SUBSTRING_INDEX(SUBSTRING_INDEX(number,'--',2),'--',-1)
WHERE number LIKE 'dupe--%--%';