diff --git a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/AbstractDataSetOperateFunction.java b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/AbstractDataSetOperateFunction.java
index 09e129dd9c875baf2debdbb84ff9f2818b3def99..188b0d171795a25ed2c88ab9ccaa303df1201ef3 100644
--- a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/AbstractDataSetOperateFunction.java
+++ b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/AbstractDataSetOperateFunction.java
@@ -76,7 +76,8 @@ public abstract class AbstractDataSetOperateFunction extends AbstractScriptFunct
 			ScriptContext subContext = new DefaultScriptContext();
 			subContext.setParent(context);
 			for (int i = 0; i < dataSet.getFields().size(); i++) {
-				subContext.put(dataSet.getFields().get(i).getName(), dataSet.getData(row, dataSet.getShowIndex(i)));
+				subContext.put(dataSet.getFields().get(i).getName(),
+						dataSet.getData(dataSet.getShowIndex(row), dataSet.getShowIndex(i)));
 			}
 			return keyFunction.execute(subContext).getResult().toString();
 
@@ -93,19 +94,16 @@ public abstract class AbstractDataSetOperateFunction extends AbstractScriptFunct
 	 * @throws Exception
 	 */
 	protected boolean checkField(DataSet dataSet1, DataSet dataSet2) throws Exception {
-		if (dataSet1.getColumns() != dataSet2.getColumns()) {
-			return false;
-		} else {
-			Set<Field> fields = new HashSet<Field>();
-			for (int i = 0; i < dataSet1.getFields().size(); i++) {
-				fields.add(dataSet1.getFields().get(i));
-			}
-			for (int i = 0; i < dataSet2.getFields().size(); i++) {
-				if (!fields.contains(dataSet2.getFields().get(i))) {
-					return false;
-				}
+		Set<Field> fields = new HashSet<Field>();
+		for (int i = 0; i < dataSet2.getFields().size(); i++) {
+			fields.add(dataSet2.getFields().get(i));
+		}
+		for (int i = 0; i < dataSet1.getFields().size(); i++) {
+			if (!fields.contains(dataSet1.getFields().get(i))) {
+				return false;
 			}
 		}
+
 		return true;
 	}
 
diff --git a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetIntersectionFunction.java b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetIntersectionFunction.java
index 329d9129dd884eee2996a4fb9848a2f8e1af23c2..74d7dc74de4418a7940b30f927c002ce992a82d0 100644
--- a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetIntersectionFunction.java
+++ b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetIntersectionFunction.java
@@ -69,7 +69,7 @@ public class DataSetIntersectionFunction extends AbstractDataSetOperateFunction
 				newMap.put(key, map.get(key));
 			}
 		}
-		return DataSetUtil.createDynamicDataSet(newMap);
+		return DataSetUtil.createDynamicDataSet(newMap, dataSet1.getFields());
 	}
 
 }
diff --git a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetSubtractFunction.java b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetSubtractFunction.java
index 091eaf61584b6f2563d81d1823b926b3487579be..ce346a4cd1a12b7af87a08d35d0cc03017bf077a 100644
--- a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetSubtractFunction.java
+++ b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetSubtractFunction.java
@@ -56,7 +56,7 @@ public class DataSetSubtractFunction extends AbstractDataSetOperateFunction {
 				map.remove(key);
 			}
 		}
-		return DataSetUtil.createDynamicDataSet(map);
+		return DataSetUtil.createDynamicDataSet(map, dataSet1.getFields());
 	}
 
 }
diff --git a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetUnionFunction.java b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetUnionFunction.java
index ae0daba49cc17fd944cf077714951776a68e5b01..d61bc5afcf855283f0c56fe4546e2a1e683723e6 100644
--- a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetUnionFunction.java
+++ b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetUnionFunction.java
@@ -54,10 +54,10 @@ public class DataSetUnionFunction extends AbstractDataSetOperateFunction {
 		Map<String, DataSetRow> map = createMapDataSetRows(dataSet1, pks, context);
 		for (int i = 0; i < dataSet2.getRows(); i++) {
 			String key = createRowKey(dataSet2, pks, i, context);
-			DataSetRow row = new DefaultDataSetRow(dataSet2, i);
+			DataSetRow row = new DefaultDataSetRow(dataSet2, dataSet2.getShowIndex(i));
 			map.put(key, row);
 		}
-		return DataSetUtil.createDynamicDataSet(map);
+		return DataSetUtil.createDynamicDataSet(map, dataSet1.getFields());
 	}
 
 }
diff --git a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetXorFunction.java b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetXorFunction.java
index d2aec6b7352760dfe750bb0412aba43f099c1291..05c6e3a81de2987b7bad982b0cc4a382cbfd3508 100644
--- a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetXorFunction.java
+++ b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/function/DataSetXorFunction.java
@@ -60,7 +60,7 @@ public class DataSetXorFunction extends AbstractDataSetOperateFunction {
 			}
 		}
 		newMap.putAll(map);
-		return DataSetUtil.createDynamicDataSet(newMap);
+		return DataSetUtil.createDynamicDataSet(newMap,dataSet1.getFields());
 	}
 
 }
diff --git a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/util/DataSetUtil.java b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/util/DataSetUtil.java
index 1ff65b62464afb9d15811d50d50c7198f37b8623..89306644f87a5cbe688d15122a79db9cda6ac327 100644
--- a/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/util/DataSetUtil.java
+++ b/org.tinygroup.tinyscript.dataset/src/main/java/org/tinygroup/tinyscript/dataset/util/DataSetUtil.java
@@ -55,8 +55,8 @@ public final class DataSetUtil {
 	 * @return
 	 * @throws Exception
 	 */
-	public static DynamicDataSet createDynamicDataSet(Map<String, DataSetRow> map) throws Exception {
-		List<Field> fields = null;
+	public static DynamicDataSet createDynamicDataSet(Map<String, DataSetRow> map, List<Field> fields)
+			throws Exception {
 		Object[][] data = new Object[map.keySet().size()][];
 		int rowId = 0;
 		boolean isIndexFromOne = false;
@@ -64,10 +64,6 @@ public final class DataSetUtil {
 		for (String key : map.keySet()) {
 			DataSetRow row = map.get(key);
 			isIndexFromOne = row.isIndexFromOne();
-			if (fields == null) {
-				fields = row.getFields();
-			}
-
 			data[rowId] = new Object[fields.size()];
 			for (int i = 0; i < fields.size(); i++) {
 				data[rowId][i] = row.getData(isIndexFromOne ? i + 1 : i);