Alessandro Molina created ARROW-12492:
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Summary: [Python] Add an helper method to decode a DictionaryArray
back to a plain Array
Key: ARROW-12492
URL: https://issues.apache.org/jira/browse/ARROW-12492
Project: Apache Arrow
Issue Type: New Feature
Components: Python
Reporter: Alessandro Molina
To create a DictionaryArray pyarrow currently offers the
{{Array.dictionary_encode}} helper, but there is a lack of an obvious way to do
the reverse. A {{DictionaryArray.decode}} helper could provide an immediate
obvious solution to get back an unrolled Array from the dictionary encoded
version.
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