总是 "Sending Data" 在 MySQL 5.6

Question

我是运行这个查询，但是在进程列表中这个状态是“发送数据”，我尝试用 Maria DB 10 这个查询运行成功，但是在 MySQL 5.6 .44 总是发送数据，你能帮我解决这个问题吗

Table/View v_stock

PartName	Qty Stock
A	10

tbl_cummulative

id	cummulativeQty	qtyOrder	qtyStore	partName	mscode	fob	refreshDate
A	5	15	20	A	AA	2021-01-01	2021-01-01
A	0	5	20	A	AA	2021-01-02	2021-01-01
A	-5	5	20	A	AA	2021-01-03	2021-01-01
A	-10	5	20	A	AA	2021-01-04	2021-01-01

select s.partName AS partName,
group_concat(distinct c.mscode separator ',') AS model,
(select min(cum.fob) from dbbomv2.tbl_cummulative cum where cum.partName = s.partName and cum.cummulativeQty < 0) AS fob,
s.qtyStock AS qtyStock,
sum(c.qtyOrder) AS qtyOrder,
min(c.cummulativeQty) AS qtyShortage,
(
    select min(dbbomv2.tbl_cummulative.cummulativeQty) AS cummulativeQty 
    from dbbomv2.tbl_cummulative 
    where dbbomv2.tbl_cummulative.fob = (select min(cum.fob) from dbbomv2.tbl_cummulative cum where cum.partName = s.partName and cum.cummulativeQty < 0) 
    and dbbomv2.tbl_cummulative.partName = s.partName and dbbomv2.tbl_cummulative.cummulativeQty < 0
) AS qtyOrderClosest 
from (dbbomv2.v_stock s 
left join 
dbbomv2.tbl_cummulative c on(s.partName = c.partName)) 
group by s.partName 
order by c.fob is null,c.fob,s.partName

我需要table这样的

partName	model	fob	qtyStock	qtyOrder	qtyShortage	fobqtyOrderClosest
A	AA	2021-01-03	20	5	-5	2021-01-03

这个MySQL5.6.44

这个玛丽亚DB 10

Answer 1

解决，我在程序

中删除了这个查询和运行这个查询

(
    select min(dbbomv2.tbl_cummulative.cummulativeQty) AS cummulativeQty 
    from dbbomv2.tbl_cummulative 
    where dbbomv2.tbl_cummulative.fob = (select min(cum.fob) from dbbomv2.tbl_cummulative cum where cum.partName = s.partName and cum.cummulativeQty < 0) 
    and dbbomv2.tbl_cummulative.partName = s.partName and dbbomv2.tbl_cummulative.cummulativeQty < 0
) AS qtyOrderClosest

总是 "Sending Data" 在 MySQL 5.6

Always "Sending Data" In MySQL 5.6

mysql

database

query-optimization