Github user sunjincheng121 commented on a diff in the pull request:
https://github.com/apache/flink/pull/3791#discussion_r113834406
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/java/StreamTableEnvironment.scala
---
@@ -19,11 +19,12 @@ package org.apache.flink.table.api.java
import org.apache.flink.api.common.typeinfo.TypeInformation
import org.apache.flink.api.java.typeutils.TypeExtractor
-import org.apache.flink.table.api._
-import org.apache.flink.table.functions.TableFunction
-import org.apache.flink.table.expressions.ExpressionParser
import org.apache.flink.streaming.api.datastream.DataStream
import
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment
+import org.apache.flink.table.api._
+import org.apache.flink.table.api.scala.TableFunctionConversions
--- End diff --
Please remove the useless import.
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