Antoine Pitrou created ARROW-9478:
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Summary: [C++] Improve error message on unsupported cast types
Key: ARROW-9478
URL: https://issues.apache.org/jira/browse/ARROW-9478
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Antoine Pitrou
Assignee: Antoine Pitrou
Currently, the error message when trying an unsupported cast looks like this:
{code}
No cast function available to cast to dictionary<values=string, indices=int32,
ordered=0>
{code}
It would be more informative if the source type was also mentioned.
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