[jira] [Created] (HIVE-18140) Partitioned tables statistics can go wrong in basic stats mixed case

["Zoltan Haindrich (JIRA)" <ji...@apache.org>]

Zoltan Haindrich created HIVE-18140:
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             Summary: Partitioned tables statistics can go wrong in basic stats mixed case
                 Key: HIVE-18140
                 URL: https://issues.apache.org/jira/browse/HIVE-18140
             Project: Hive
          Issue Type: Sub-task
            Reporter: Zoltan Haindrich


suppose the following scenario:

* part1 has basic stats {{RC=10,DS=1K}}
* all other partition has no basic stats (and a bunch of rows)

then [this|https://github.com/apache/hive/blob/d9924ab3e285536f7e2cc15ecbea36a78c59c66d/ql/src/java/org/apache/hadoop/hive/ql/stats/StatsUtils.java#L378] condition would be false; which in turn produces estimations for the whole partitioned table: {{RC=10,DS=1K}}




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