BUG explode_map() 函数BUG

select 
    a.name,
    tmp.k,
    tmp.v
from (
    select 
        'zhangsan' name,
        map(1,20,2,30) score
)a lateral view explode_map(score)  tmp as k,v;

执行报错：

errCode = 2, detailMessage = Unknown table 'v'

改写为下面的形式可以执行成功，但是不是我预期的结果

select 
    a.name,
    tmp.k
from (
    select 
        'zhangsan' name,
        map(1,20,2,30) score
)a lateral view explode_map(score)  tmp as k