Automatically gathering stats when reading a table/partition
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Key: HIVE-1648
URL: https://issues.apache.org/jira/browse/HIVE-1648
Project: Hadoop Hive
Issue Type: New Feature
Reporter: Ning Zhang
HIVE-1361 introduces a new command 'ANALYZE TABLE T COMPUTE STATISTICS' to
gathering stats. This requires additional scan of the data. Stats gathering can
be piggy-backed on TableScanOperator whenever a table/partition is scanned
(given not LIMIT operator).
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