[jira] [Created] (HIVE-6100) Introduce basic set operations as UDFs

["Kostiantyn Kudriavtsev (JIRA)" <ji...@apache.org>]

Kostiantyn Kudriavtsev created HIVE-6100:
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             Summary: Introduce basic set operations as UDFs
                 Key: HIVE-6100
                 URL: https://issues.apache.org/jira/browse/HIVE-6100
             Project: Hive
          Issue Type: New Feature
          Components: UDF
            Reporter: Kostiantyn Kudriavtsev
            Priority: Minor
             Fix For: 0.13.0


Introduce basic set operations:
1. Intersection: The intersection of A and B, denoted by A ∩ B, is the set of all things that are members of both A and B.
select set_intersection(arr_a, arr_b) from dual

2. Union: The union of A and B, denoted by A ∪ B, is the set of all things that are members of either A or B.
select set_union(arr_a, arr_b) from dual

3. Symmetric difference: the symmetric difference of two sets is the set of elements which are in either of the sets and not in their intersection.
select set_symdiff(arr_a, arr_b) from dual





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