Zoltan Haindrich created HIVE-17551:
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Summary: HiveReduceExpressionsWithStatsRule should handle when
stats are not available
Key: HIVE-17551
URL: https://issues.apache.org/jira/browse/HIVE-17551
Project: Hive
Issue Type: Bug
Reporter: Zoltan Haindrich
it seems to me that it might be possible that in case stats are not available;
then instead of those null checks; the array will be empty - and a AIOBE will
be raised...
https://github.com/apache/hive/blob/a51ae9c8f5700638d0cc8c1d7f085ebf061f996f/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveReduceExpressionsWithStatsRule.java#L267
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