Ian Cook created ARROW-13770:
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Summary: [R] Add MapType and MapArray support to R bindings
Key: ARROW-13770
URL: https://issues.apache.org/jira/browse/ARROW-13770
Project: Apache Arrow
Issue Type: Improvement
Components: R
Reporter: Ian Cook
It would be nice if the R bindings included some support for
[MapType|https://github.com/apache/arrow/blob/20885df121266a8519692c7630c98beb570f3b47/cpp/src/arrow/type.cc#L424]
and
[MapArray|https://github.com/apache/arrow/blob/71a57b156a077de29a879fd5627e366684c140ac/cpp/src/arrow/array/array_nested.cc#L283].
For example, when a _named_ R vector is converted to an Arrow Array, it would
become a MapArray instead of a ListArray, with the names as the keys and the
values as the items.
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