dianfu commented on a change in pull request #7196: [FLINK-10974] [table] Add 
support for flatMap to table API
URL: https://github.com/apache/flink/pull/7196#discussion_r239308521
 
 

 ##########
 File path: 
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/utils/UserDefinedFunctionUtils.scala
 ##########
 @@ -795,7 +795,7 @@ object UserDefinedFunctionUtils {
             "define table function followed by some Alias.")
     }
 
-    val functionCall: LogicalTableFunctionCall = 
unwrap(ExpressionParser.parseExpression(udtf))
+    val functionCall: LogicalTableFunctionCall = unwrap(udtfExpr)
 
 Review comment:
   Done.

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