HIVE str

delimiter1 将文本分为K-V 键值对， delimiter2 分割K-V。

delimiter1 默认分隔符为","
delimiter2 默认分隔符为":"

SELECT
  str_to_map('a=1,b=2',',','=') as m1,
  str_to_map('a:1,b:2,c:3',',',':') as m2,
  str_to_map('a:1,b:2,c:3') as m3

输出

{"a":"1","b":"2"}
{"a":"1","b":"2","c":"3"}
{"a":"1","b":"2","c":"3"}