Details
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Type:
Bug
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 1.17.0
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Component/s: None
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Labels:None
Description
The equals() method of `Flat3List` and `Flat4List` may invoke each other in an infinite loop.
See also https://issues.apache.org/jira/browse/HIVE-18427
We found this problem when such lists are used as keys in `RelMetadataQuery.map`; occasionally there are hashcode collisions between `Flat3List` and `Flat4List`, hence their equals() methods will be invoked.