Krisztian Szucs created ARROW-6475:
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Summary: [C++] Don't try to dictionary encode dictionary arrays
Key: ARROW-6475
URL: https://issues.apache.org/jira/browse/ARROW-6475
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Krisztian Szucs
Assignee: Benjamin Kietzman
Fix For: 0.15.0
With #5077 (or possibly #4949) behavior with dictionary arrays changed, leaving
the explicit call to DictionaryEncode() redundant.
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