IFNULL(LEFT(ic.CATEGORY_CODE,#{length}),'') AS categoryCode,
IFNULL(cd.CATEGORY_NAME,'其他') AS categoryName,
IFNULL(cd.color,'#0091ed') AS color
FROM issue_category ic
INNER JOIN issue_project_category_dict cd ON (cd.CATEGORY_CODE = LEFT(ic.CATEGORY_CODE,#{length}) AND cd.DEL_FLAG = '0' AND cd.CUSTOMER_ID = ic.CUSTOMER_ID)