Support Arrow `string_view` and `bin_view` types.

[ritchie46]

Feature Request / Improvement

Polars uses the view types to represent string and binary data. We'd like to move data into pyicberg zero-copy via Arrow, but the string_view and bin_view types are not yet supported.

FAILED tests/unit/io/test_iceberg.py::test_write_iceberg - TypeError: Unsupported type: string_view

[kevinjqliu]

https://github.com/pola-rs/polars/blob/b93b97b966f770e979018a070b2bddccc2ecc958/py-polars/tests/unit/io/test_iceberg.py#L197

[kevinjqliu]

• pyarrow.string_view
• pyarrow.binary_view

primitive type -> Iceberg type mapping

iceberg-python/pyiceberg/io/pyarrow.py

Line 1192 in f186d58

elif pa.types.is_string(primitive) or pa.types.is_large_string(primitive):

[Fokko]

Thanks @ritchie46 for raising this, I took the liberty of creating a PR: #1748