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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