mysql 统计一周每天得数据

SELECT
	a.click_date Time,
	IFNULL(b.total,0) as InCome
FROM
	(
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 7 DAY ) AS click_date UNION ALL
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 6 DAY ) AS click_date UNION ALL
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 5 DAY ) AS click_date UNION ALL
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 4 DAY ) AS click_date UNION ALL
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 3 DAY ) AS click_date UNION ALL
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 2 DAY ) AS click_date UNION ALL
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 1 DAY ) AS click_date UNION ALL
SELECT
	DATE_SUB( CURDATE( ), INTERVAL 0 DAY ) AS click_date 
	) a
	LEFT JOIN (
SELECT
	DATE_FORMAT( transaction_time, '%Y-%m-%d' ) AS datetime,
	sum( amount ) AS total 
FROM
	trade 
WHERE
	bvent_id = "aa740000-0047-5254-aee4-08d727960021" 
	AND transaction_type = "Revenue" 
	AND transaction_status = "2" 
	AND is_deleted = 0 
	AND transaction_time < CURDATE( ) + 1 AND transaction_time >= DATE_SUB( CURDATE( ), INTERVAL 7 DAY )
GROUP BY
	DATE_FORMAT( transaction_time, '%Y-%m-%d' ) 
	) b ON a.click_date = b.datetime
		
	order by a.click_date desc