Rich-T-kid opened a new issue, #9889:
URL: https://github.com/apache/arrow-rs/issues/9889
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**
In arrow-string/src/substring.rs:88-90 (inside the substring_dict! macro),
the dictionary fast path rebuilds the result with
[DictionaryArray::try_new](url)
Since the keys are unchanged and the values' length is unchanged (one
substring per dictionary value), this is exactly what
https://docs.rs/arrow-array/latest/arrow_array/array/struct.DictionaryArray.html#method.with_values
is for:
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Pretty small change, noticed it while working on REE but I dont want to
clutter the PR
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