set sql_log_bin=0;
USE billing;

CREATE OR REPLACE VIEW v_contract_timezone AS
  SELECT cc.id as contact_id, c.id as contract_id,
         COALESCE(cc.timezone, rc.timezone, t.name) as name
 FROM contracts c
JOIN contacts cc ON cc.id = c.contact_id
LEFT JOIN resellers r ON r.id = cc.reseller_id
LEFT JOIN contracts i ON i.id = r.contract_id
LEFT JOIN contacts rc ON rc.id = i.contact_id
JOIN ngcp.timezone t;