添加字段长度

seatunnel-datasource/seatunnel-datasource-plugins/datasource-plugins-api/src/main/java/org/apache/seatunnel/datasource/plugin/api/model/TableField.java

@@ -46,4 +46,5 @@ public class TableField {
     private String len;
 
     private String scale;
+
 }