David Li created ARROW-13390:
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Summary: [C++] Improve type support for 'coalesce' kernel
Key: ARROW-13390
URL: https://issues.apache.org/jira/browse/ARROW-13390
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: David Li
Assignee: David Li
* Direct support for dictionaries (unifying dictionaries or building a new
dictionary as necessary)
* Fixed-length list
* Union, struct, list, other variable-width types
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