Prasanth J created PIG-2726:
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Summary: Handling legitimate NULL values
Key: PIG-2726
URL: https://issues.apache.org/jira/browse/PIG-2726
Project: Pig
Issue Type: Sub-task
Affects Versions: 0.11
Reporter: Prasanth J
Assignee: Prasanth J
Look into SQL/Oracle server for how they are handling legitimate NULL values in
the input while performing operations like roll-up, filtering etc. Current
implementation outputs NULL string which should be replaced by actual null
value.
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