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Posted to dev@arrow.apache.org by "Ben Kietzman (Jira)" <ji...@apache.org> on 2020/03/20 15:16:00 UTC

[jira] [Created] (ARROW-8172) [C++] ArrayFromJSON for dictionary arrays

Ben Kietzman created ARROW-8172:
-----------------------------------

             Summary: [C++] ArrayFromJSON for dictionary arrays
                 Key: ARROW-8172
                 URL: https://issues.apache.org/jira/browse/ARROW-8172
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
    Affects Versions: 0.16.0
            Reporter: Ben Kietzman
             Fix For: 2.0.0


It would be useful for testing if {{ArrayFromJSON}} could be instructed to dictionary encode its values by passing a dictionary type.

{code}
auto dict_encoded_strings = ArrayFromJSON(dictionary(int8(), utf8()), R"([
  "whiskey", "tango", "foxtrot"
])");
{code}

See discussion https://github.com/apache/arrow/pull/6641#pullrequestreview-377768482



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