chaozwn commented on a change in pull request #1089:
URL: 
https://github.com/apache/incubator-seatunnel/pull/1089#discussion_r788392398



##########
File path: 
seatunnel-connectors/seatunnel-connector-flink-jdbc/src/main/java/org/apache/seatunnel/flink/sink/JdbcSink.java
##########
@@ -17,23 +17,19 @@
 
 package org.apache.seatunnel.flink.sink;
 
-import org.apache.seatunnel.shade.com.typesafe.config.Config;
-import org.apache.seatunnel.common.config.CheckConfigUtil;
-import org.apache.seatunnel.flink.FlinkEnvironment;
-import org.apache.seatunnel.flink.batch.FlinkBatchSink;
-import org.apache.seatunnel.flink.stream.FlinkStreamSink;
-import org.apache.seatunnel.flink.util.SchemaUtil;
-import org.apache.seatunnel.common.config.CheckResult;
-import org.apache.flink.api.common.typeinfo.TypeInformation;
 import org.apache.flink.api.java.DataSet;
-import org.apache.flink.api.java.io.jdbc.JDBCAppendTableSink;
 import org.apache.flink.api.java.operators.DataSink;
 import org.apache.flink.streaming.api.datastream.DataStream;
 import org.apache.flink.streaming.api.datastream.DataStreamSink;
 import org.apache.flink.table.api.Table;
 import org.apache.flink.table.api.TableEnvironment;
-import org.apache.flink.table.sinks.TableSink;
 import org.apache.flink.types.Row;
+import org.apache.seatunnel.common.config.CheckConfigUtil;
+import org.apache.seatunnel.common.config.CheckResult;
+import org.apache.seatunnel.flink.FlinkEnvironment;
+import org.apache.seatunnel.flink.batch.FlinkBatchSink;
+import org.apache.seatunnel.flink.stream.FlinkStreamSink;
+import org.apache.seatunnel.shade.com.typesafe.config.Config;
 
 public class JdbcSink implements FlinkStreamSink<Row, Row>, 
FlinkBatchSink<Row, Row> {

Review comment:
       i think FlinkStreamSink,we show use RowData instead of Row,inteface 
should be DataStreamSink<RowData> and DataStreamSource<RowData>




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