leonardBang commented on a change in pull request #16525:
URL: https://github.com/apache/flink/pull/16525#discussion_r673061552



##########
File path: 
flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/inference/InputTypeStrategies.java
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@@ -172,8 +172,8 @@ public static InputTypeStrategy 
wildcardWithCount(ArgumentCount argumentCount) {
      * argument.
      */
     public static InputTypeStrategy comparable(
-            ConstantArgumentCount argumentCount, StructuredComparision 
requiredComparision) {
-        return new ComparableTypeStrategy(argumentCount, requiredComparision);
+            ConstantArgumentCount argumentCount, StructuredComparison 
requiredComparison) {

Review comment:
       Thanks @twalthr and @wuchong for the comment, If we only fix in master, 
it will fail when users want to load json serialized execution plan which 
generated from 1.13,  that's why i want to backport this one
   CC @godfreyhe 




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