Hive 查看函数（udf）定义及示例

1、 desc function  split ;

返回 

split(str, regex) - Splits str around occurances that match regex

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2、 desc function extended  split ;

返回：

split(str, regex) - Splits str around occurances that match regex
Example:
  > SELECT split('oneAtwoBthreeC', '[ABC]') FROM src LIMIT 1;
  ["one", "two", "three"]