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Posted to issues@spark.apache.org by "Kazuaki Ishizaki (JIRA)" <ji...@apache.org> on 2018/04/13 11:58:00 UTC

[jira] [Created] (SPARK-23976) UTF8String.concat() or ByteArray.concat() may allocate shorter structure.

Kazuaki Ishizaki created SPARK-23976:
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             Summary: UTF8String.concat() or ByteArray.concat() may allocate shorter structure.
                 Key: SPARK-23976
                 URL: https://issues.apache.org/jira/browse/SPARK-23976
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.3.0
            Reporter: Kazuaki Ishizaki


When the three inputs has `0x7FFF_FF00`, `0x7FFF_FF00`, and `0xE00`, the current algorithm allocate the result structure with 0x1000 length due to integer sum overflow.

We should detect overflow.




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