column pruning should work on map and array indices
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Key: HIVE-722
URL: https://issues.apache.org/jira/browse/HIVE-722
Project: Hadoop Hive
Issue Type: Improvement
Components: Query Processor
Reporter: Prasad Chakka
if map[key] or array[i] is selected or used in a predicate, only that element
should be projected in column pruning instead of the whole map or array.
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