[jira] [Created] (ARROW-17989) [C++] Enable struct_field kernel to accept string field names

["Joris Van den Bossche (Jira)" <ji...@apache.org>]

Joris Van den Bossche created ARROW-17989:
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             Summary: [C++] Enable struct_field kernel to accept string field names
                 Key: ARROW-17989
                 URL: https://issues.apache.org/jira/browse/ARROW-17989
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Joris Van den Bossche


Currently the "struct_field" kernel only works for integer indices for the child fields. From the StructFieldOption class (https://github.com/apache/arrow/blob/3d7f2f22a0fc441a41b8fa971e11c0f4290ebb24/cpp/src/arrow/compute/api_scalar.h#L283-L285):

{code}
  /// The child indices to extract. For instance, to get the 2nd child
  /// of the 1st child of a struct or union, this would be {0, 1}.
  std::vector<int> indices;
{code}

It would be nice if you could also refer to fields by name in addition to by position.



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