[GitHub] [arrow-rs] waynexia commented on a diff in pull request #1909: minor: add a diagram to docstring for DictionaryArray

[GitBox <gi...@apache.org>]

waynexia commented on code in PR #1909:
URL: https://github.com/apache/arrow-rs/pull/1909#discussion_r901114505


##########
arrow/src/array/array_dictionary.rs:
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@@ -33,6 +33,31 @@ use crate::error::Result;
 /// This is mostly used to represent strings or a limited set of primitive types as integers,
 /// for example when doing NLP analysis or representing chromosomes by name.
 ///
+/// [`DictionaryArray`] are represented using a `keys` array and a
+/// `values` array, which may be diferent lengths. The `keys` array

Review Comment:
   ```suggestion
   /// `values` array, which may be different lengths. The `keys` array
   ```



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