davidradl commented on code in PR #27453:
URL: https://github.com/apache/flink/pull/27453#discussion_r2716098444


##########
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/plan/nodes/exec/serde/RexNodeJsonSerdeTest.java:
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@@ -977,6 +1003,24 @@ public void eval(CompletableFuture<String> res, Integer 
i) {
         }
     }
 
+    /** Serializable process table function. */
+    public static class SerializableProcessTableFunction extends 
ProcessTableFunction<String> {

Review Comment:
   The code seems good. I am curious about the name of this class. It is 
possible to have a non serializable PTF?  If not, I suggest naming this 
something like `MyProcessTableFunction` to prevent confusion. If we can 
reasonably have a  non serializable PTF, we should have a test for this.



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