[HIVE-14378] Data size may be estimated as 0 if no columns are being projected after an operator

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0
• Component/s: Physical Optimizer, Statistics
• Assignee: Ashutosh Chauhan
• Reporter: Ashutosh Chauhan
• Created: 29/Jul/16 00:12
• Updated: 27/Feb/24 22:23
• Resolved: 06/Aug/16 00:34

Description

in those cases we still emit rows.. but they may not have any columns within it. We shouldn't estimate 0 data size in such cases.