mariadb(mysql) slow query fix - mysql

Question

SELECT
CAST(`a`.`selldate` AS DATE) AS `regdate`,
`a`.`market` AS `market`,
`a`.`user_seq` AS `user_seq`,
COUNT(0) AS `complete`,
ROUND(SUM(`a`.`sell`) - SUM(`a`.`buy`) - SUM(`a`.`buy_fee`) - SUM(`a`.`sell_fee`),8) AS `profit`,
ROUND(SUM(`a`.`buy`),8) AS `price`,
ROUND(SUM(`a`.`sell_fee`),8) AS `sell_fee`,
ROUND(SUM(`a`.`buy_fee`),8) AS `buy_fee`,
(
SELECT SUM(`yangpago`.`funding`.`price`) AS `funding_fee`
FROM `yangpago`.`funding`
WHERE
DATE_FORMAT(FROM_UNIXTIME(`yangpago`.`funding`.`time`),'%Y-%m-%d') = CAST(`a`.`selldate` AS DATE)
AND
`yangpago`.`funding`.`user_seq` = `a`.`user_seq`
GROUP BY `regdate`,`yangpago`.`funding`.`user_seq`
) AS `funding_fee`
FROM (
SELECT
`v_order`.`cnt` AS `cnt`,
`v_order`.`market` AS `market`,
`v_order`.`user_seq` AS `user_seq`,
`v_order`.`selldate` AS `selldate`,
`v_order`.`sell_price` * `v_order`.`sell_amount` AS `sell`,
`v_order`.`buy_price` * `v_order`.`buy_amount` AS `buy`,
`v_order`.`sell_price` * `v_order`.`sell_amount` * `f`.`sell_fee` AS `sell_fee`,
`v_order`.`buy_price` * `v_order`.`buy_amount` * `f`.`buy_fee` AS `buy_fee`
FROM (`yangpago`.`v_order`
JOIN `yangpago`.`fee` `f`
ON (
`f`.`market` = `v_order`.`market`
AND
`f`.`user_seq` = `v_order`.`user_seq`
AND
CAST(`v_order`.`selldate` AS DATE) BETWEEN `f`.`startdate`
AND
IFNULL(`f`.`enddate`, CURRENT_TIMESTAMP())
)
)
WHERE `v_order`.`state` = 'COMPLETE') `a`
GROUP BY CAST(`a`.`selldate` AS DATE),`a`.`market`,`a`.`user_seq`
here is my balance view query.
this query is speed very slow. run time (1~2s)
i try funding subquery remove and check time 0.2s~0.3s
so, remove join query too. and check time 0.1s
all of sum column remove, time is 0.004s. i want 0.01s under. this query result.
how to fix it?

Answer 1

You are in effect reading the data twice once to create the virtual table a then again to aggregate - the virtual table is not necessary consider refactoring your code
SELECT
CAST(v_order.selldate AS DATE) AS regdate,
v_order.market AS market,
v_order.user_seq AS user_seq,
COUNT(0) AS complete,
sum(v_order.sell_price * v_order.sell_amount) -
SUM(v_order.buy_price * v_order.buy_amount) -
SUM(v_order.buy_price * v_order.buy_amount * f.buy_fee) -
SUM(v_order.sell_price * v_order.sell_amount * f.sell_fee) as profit,
SUM(v_order.buy_price * v_order.buy_amount) AS price,
SUM(v_order.sell_price * v_order.sell_amount * f.sell_fee) AS sell_fee,
SUM(v_order.buy_price * v_order.buy_amount * f.buy_fee) AS buy_fee,
(SELECT SUM(funding.price) AS funding_fee
FROM funding
WHERE DATE_FORMAT(FROM_UNIXTIME(funding.time),'%Y-%m-%d') = CAST(a.selldate AS DATE)
AND funding.user_seq = v_order.user_seq
) AS funding_fee
FROM v_order
JOIN fee f ON f.market = v_order.market
AND f.user_seq = v_order.user_seq
AND CAST(v_order.selldate AS DATE) BETWEEN f.startdate
AND coalesce(f.enddate, CURRENT_TIMESTAMP())
WHERE v_order.state = 'COMPLETE'
GROUP BY regdate,market,user_seq;