[C++][Gandiva] castDATE_date32() may cause overflow

[asfimport]

The following code in cpp/src/gandiva/precompiled/time.cc may cause overflow since int32 * int32 is int32, then it is converted to int64. The result of int32 may loose the part of the result of the multiplication

 

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

Reporter: Kazuaki Ishizaki / @kiszk
Assignee: Kazuaki Ishizaki / @kiszk

PRs and other links:

• GitHub Pull Request #7260

_{Note: This issue was originally created as ARROW-8924. Please see the migration documentation for further details.}

[asfimport]

Kouhei Sutou / @kou:
Issue resolved by pull request 7260
#7260