[PIG-2726] Handling legitimate NULL values

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11
• Fix Version/s: 0.11
• Assignee: Prasanth Jayachandran
• Reporter: Prasanth Jayachandran
• Created: 28/May/12 00:06
• Updated: 22/Feb/13 04:54
• Resolved: 10/Jul/12 17:19

Description

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.