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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