Extend Explode UDTF to handle Maps
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Key: HIVE-1735
URL: https://issues.apache.org/jira/browse/HIVE-1735
Project: Hive
Issue Type: New Feature
Components: UDF
Reporter: Carl Steinbach
The explode() UDTF currently only accepts arrays as input. We should modify it
so that it can also handle map inputs, in which case it will output two columns
corresponding to the key and value fields.
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