Ashutosh Chauhan created HIVE-12309:
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Summary: TableScan should colStats when available for better data
size estimate
Key: HIVE-12309
URL: https://issues.apache.org/jira/browse/HIVE-12309
Project: Hive
Issue Type: Improvement
Components: Statistics
Reporter: Ashutosh Chauhan
Assignee: Ashutosh Chauhan
Currently, all other operators use column stats to figure out data size,
whereas TableScan relies on rawDataSize. This inconsistency can result in an
inconsistency where TS may have lower Datasize then subsequent operators.
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