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https://issues.apache.org/jira/browse/ARROW-4101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17661124#comment-17661124
]
Rok Mihevc commented on ARROW-4101:
-----------------------------------
This issue has been migrated to [issue
#20694|https://github.com/apache/arrow/issues/20694] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [C++] Binary identity cast not implemented
> ------------------------------------------
>
> Key: ARROW-4101
> URL: https://issues.apache.org/jira/browse/ARROW-4101
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Wes McKinney
> Assignee: Francois Saint-Jacques
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.12.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Surfaced by test case in https://github.com/apache/arrow/pull/3239
> ```
> In [1]: import pyarrow as pa
> In [2]: pa.array([b'foo'])
> Out[2]:
> <pyarrow.lib.BinaryArray object at 0x7f6ed510b9a8>
> [
> 666F6F
> ]
> In [3]: arr = pa.array([b'foo'])
> In [4]: arr.cast(pa.binary())
> ---------------------------------------------------------------------------
> ArrowNotImplementedError Traceback (most recent call last)
> <ipython-input-4-d6c6f1159d55> in <module>()
> ----> 1 arr.cast(pa.binary())
> ~/miniconda/envs/arrow-dev/lib/python3.6/site-packages/pyarrow/array.pxi in
> pyarrow.lib.Array.cast()
> ~/miniconda/envs/arrow-dev/lib/python3.6/site-packages/pyarrow/error.pxi in
> pyarrow.lib.check_status()
> ArrowNotImplementedError: No cast implemented from binary to binary
> ```
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