bowenli86 commented on a change in pull request #11538: [FLINK-16813][jdbc]  
JDBCInputFormat doesn't correctly map Short
URL: https://github.com/apache/flink/pull/11538#discussion_r399544519
 
 

 ##########
 File path: 
flink-connectors/flink-jdbc/src/main/java/org/apache/flink/api/java/io/jdbc/JDBCInputFormat.java
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 @@ -127,7 +134,7 @@ public JDBCInputFormat() {
 
        @Override
        public RowTypeInfo getProducedType() {
-               return rowTypeInfo;
+               return (RowTypeInfo) 
fromDataTypeToLegacyInfo(fromLogicalToDataType(rowType));
 
 Review comment:
   I think 1) keeping rowTypeInfo v.s. rowType and 2) have row converter as 
runtime class, are orthogonal, right? I'd like to use new type system so it 
won't need migration once flip-95 is done.
   
   I agree keeping dialects out of runtime sounds like a better idea

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