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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