摘要:
在网上找了很久,终于解决了,代码如下: with mydata as ( select ID, my_array from ( --some array<struct> example select 1 ID, array(1.1, 2.2, 3.3) as my_array union all s 阅读全文
摘要:
How to transform data into a map using group by in Hive SQL? select grade, str_to_map(course_list,',',':') lecture_count_map from ( select grade, conc 阅读全文