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  1. Apache Arrow
  2. ARROW-12540

[C++] Implement cast from date32[day] to utf8

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      I'm writing bindings between the C++ write CSV functionality and R.  When I test my code on a table with no dates columns, the tests pass, but when I test the code with a table that includes dates, I get the following error message:

      `Error: NotImplemented: Unsupported cast from date32[day] to utf8 using function cast_string`

      Code that causes error: https://github.com/apache/arrow/pull/10141

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              rommelqc Rommel Quintanilla
              thisisnic Nicola Crane
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