diff --git a/cloud-etl-server/src/main/java/com/muyu/cloud/etl/mysql/MySqlDataSource.java b/cloud-etl-server/src/main/java/com/muyu/cloud/etl/mysql/MySqlDataSource.java
index 01747b2..3794333 100644
--- a/cloud-etl-server/src/main/java/com/muyu/cloud/etl/mysql/MySqlDataSource.java
+++ b/cloud-etl-server/src/main/java/com/muyu/cloud/etl/mysql/MySqlDataSource.java
@@ -196,7 +196,7 @@ public class MySqlDataSource extends BaseDataAbsSource {
             ResultSet resultSet = preparedStatement.executeQuery();
             ResultSetMetaData metaData = resultSet.getMetaData();
             int columnCount = metaData.getColumnCount();
-            int c = 1;
+            int c = 0;
             while (resultSet.next()){
                 for (int i = 1; i <= columnCount; i++) {
                     if (resultSet.isFirst()){