[jira] [Created] (ARROW-5992) [C++] Array::View fails for string/utf8 as binary

["Wes McKinney (JIRA)" <ji...@apache.org>]

Wes McKinney created ARROW-5992:
-----------------------------------

             Summary: [C++] Array::View fails for string/utf8 as binary
                 Key: ARROW-5992
                 URL: https://issues.apache.org/jira/browse/ARROW-5992
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
            Reporter: Wes McKinney
             Fix For: 1.0.0


I encountered this

{code}
-- Arrow Fatal Error --
Invalid: Can't view array of type string as binary: not enough buffers for view type
In ../src/arrow/array.cc, line 1049, code: CheckInputAvailable()
In ../src/arrow/array.cc, line 1100, code: impl.MakeDataView(out_field, &out_data)
{code}

when trying to add a {{BinaryWithRepeats}} function to {{RandomArrayGenerator}}

{code}
  std::shared_ptr<Array> out;
  auto strings = StringWithRepeats(size, unique, min_length, max_length,
                                   null_probability);
  ABORT_NOT_OK(strings->View(binary(), &out));
  return out;
{code}

It looks like utf8 <-> binary view simply aren't tested in array-view-test



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