[GitHub] [incubator-druid] jihoonson commented on a change in pull request #7595: Optimize overshadowed segments computation

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

jihoonson commented on a change in pull request #7595: Optimize overshadowed segments computation
URL: https://github.com/apache/incubator-druid/pull/7595#discussion_r291289068
 
 

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 File path: core/src/main/java/org/apache/druid/utils/CollectionUtils.java
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 @@ -68,6 +71,17 @@ public int size()
     };
   }
 
+  /**
+   * Returns a transformed map from the given input map where the value is modified based on the given valueMapper
+   * function.
+   */
+  public static <K, V, V2> Map<K, V2> transformValues(Map<K, V> map, Function<V, V2> valueMapper)
 
 Review comment:
   @leventov please note that this is the only remaining release blocker. I don't think any of your comments here should be addressed in this PR. They are out of scope and should be done separately.

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