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Posted to dev@arrow.apache.org by "Kazuaki Ishizaki (Jira)" <ji...@apache.org> on 2020/05/24 17:16:00 UTC

[jira] [Created] (ARROW-8924) [C++][Gandiva] castDATE_date32() may cause overflow

Kazuaki Ishizaki created ARROW-8924:
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             Summary: [C++][Gandiva] castDATE_date32() may cause overflow
                 Key: ARROW-8924
                 URL: https://issues.apache.org/jira/browse/ARROW-8924
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++ - Gandiva
            Reporter: Kazuaki Ishizaki


The following code in `cpp/src/gandiva/precompiled/time.cc` may cause overflow since `int32` * `int32` is `int32`, then it is converted to `int64`.

 
{code:java}
gdv_date64 castDATE_date32(gdv_date32 days) { return days * MILLIS_IN_DAY; } {code}



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