[GitHub] [arrow-rs] viirya commented on a diff in pull request #1910: minor: clarify docstring on `DictionaryArray::lookup_key`

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

viirya commented on code in PR #1910:
URL: https://github.com/apache/arrow-rs/pull/1910#discussion_r901135825


##########
arrow/src/array/array_dictionary.rs:
##########
@@ -128,7 +128,11 @@ impl<'a, K: ArrowPrimitiveType> DictionaryArray<K> {
         &self.keys
     }
 
-    /// Returns the lookup key by doing reverse dictionary lookup
+    /// If `value` is present in `values` (aka the dictionary),
+    /// returns the coresponding key (index into the `values`

Review Comment:
   typo?
   ```suggestion
       /// returns the corresponding key (index into the `values`
   ```



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