support for "using" syntax join condition as a shorthand
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Key: HIVE-2291
URL: https://issues.apache.org/jira/browse/HIVE-2291
Project: Hive
Issue Type: Improvement
Components: SQL
Affects Versions: 0.7.0
Reporter: Ido Hadanny
Priority: Minor
The "using" syntax for join conditions is a convenient shorthand.
A using column list ( a, b, ... ) is shorthand for the on condition
left_table.a = right_
table.a and left_table.b = right_table.b
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