text: --liquibase formatted sql
  
  --changeset uk.gov.pay:add_payouts_foreign_key_to_transaction
  ALTER TABLE transaction ADD COLUMN gateway_payout_id VARCHAR(50) REFERENCES payouts(gateway_payout_id);
  --rollback ALTER TABLE transaction DROP COLUMN gateway_payout_id; 
  
  --changeset uk.gov.pay:create_index_on_transaction_gateway_payout_id runInTransaction:false
  CREATE INDEX CONCURRENTLY transaction_gateway_payout_id_idx ON transaction(gateway_payout_id);
  --rollback DROP INDEX transaction_gateway_payout_id_idx;
  