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Posted to issues@spark.apache.org by "yucai (JIRA)" <ji...@apache.org> on 2019/02/18 08:01:00 UTC

[jira] [Created] (SPARK-26909) use unsafeRow.hashCode() as hash value in HashAggregate

yucai created SPARK-26909:
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             Summary: use unsafeRow.hashCode() as hash value in HashAggregate
                 Key: SPARK-26909
                 URL: https://issues.apache.org/jira/browse/SPARK-26909
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.4.0
            Reporter: yucai


This is a followup PR for #21149.

New way uses unsafeRow.hashCode() as hash value in HashAggregate.
The unsafe row has [null bit set] etc., the result should be different, and we don't need weird `48` also.



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