KurtYoung commented on a change in pull request #8435: 
[FLINK-12443][table-planner-blink] Replace InternalType with LogicalType in 
blink
URL: https://github.com/apache/flink/pull/8435#discussion_r290593795
 
 

 ##########
 File path: 
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/calcite/FlinkTypeFactory.scala
 ##########
 @@ -147,12 +171,12 @@ class FlinkTypeFactory(typeSystem: RelDataTypeSystem) 
extends JavaTypeFactoryImp
     * Creates a struct type with the input fieldNames and input fieldTypes 
using FlinkTypeFactory
     *
     * @param fieldNames field names
-    * @param fieldTypes field types, every element is Flink's [[InternalType]]
+    * @param fieldTypes field types, every element is Flink's [[LogicalType]]
     * @return a struct type with the input fieldNames, input fieldTypes, and 
system fields
     */
   def buildLogicalRowType(
 
 Review comment:
   OMG, how the caller suppose to tell this difference just seeing these two 
API?

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