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  1. Apache Arrow
  2. ARROW-7858

[C++][Python] Support casting an Extension type to its storage type

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    Description

      Currently, casting an extension type will always fail: "No cast implemented from extension<arrow.py_extension_type> to ...".

      However, for casting, we could fall back to the storage array's casting rules?

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          Bug - A problem which impairs or prevents the functions of the product. ARROW-7857 [Python] Failing test with pandas master for extension type conversion

          • Major - Major loss of function.
          • Resolved
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. ARROW-5890 [C++][Python] Support ExtensionType arrays in more kernels

          • Major - Major loss of function.
          • Open
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. ARROW-14500 [C++] Support casting from storage type to extension type

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #6633

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              kszucs Krisztian Szucs
              jorisvandenbossche Joris Van den Bossche
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