diff --git a/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/MPJAbstractWrapper.java b/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/MPJAbstractWrapper.java
index 668b1de..d137232 100644
--- a/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/MPJAbstractWrapper.java
+++ b/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/MPJAbstractWrapper.java
@@ -667,12 +667,6 @@ public abstract class MPJAbstractWrapper<T, Children extends MPJAbstractWrapper<
      * 获取 columnName
      */
     protected final <X> ISqlSegment columnToSqlSegment(Integer index, SFunction<X, ?> column, boolean isJoin) {
-        PrefixEnum prefixEnum;
-        if (isMain) {
-            prefixEnum = isNo ? PrefixEnum.ON_FIRST /* 理论上不可能有这种情况 */ : PrefixEnum.CD_FIRST;
-        } else {
-            prefixEnum = isNo ? PrefixEnum.ON_FIRST : PrefixEnum.CD_ON_FIRST;
-        }
         return () -> columnToString(index, column, isJoin, isNo ? PrefixEnum.ON_FIRST : PrefixEnum.CD_FIRST);
     }
 
diff --git a/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/resultmap/MybatisLabel.java b/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/resultmap/MybatisLabel.java
index 8435dd0..db6e219 100644
--- a/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/resultmap/MybatisLabel.java
+++ b/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/resultmap/MybatisLabel.java
@@ -246,6 +246,7 @@ public class MybatisLabel<E, T> implements Label<T> {
                     mybatisLabel.resultList.addAll(listField.stream().map(i -> {
                         Result result = new Result();
                         result.setId(i.isPk());
+                        result.setIndex(mybatisLabel.index);
                         result.setProperty(i.getColumProperty());
                         result.setJavaType(i.getColumnType());
                         result.setJdbcType(Objects.isNull(i.getTableFieldInfo()) ? null : i.getTableFieldInfo().getJdbcType());
@@ -258,6 +259,7 @@ public class MybatisLabel<E, T> implements Label<T> {
                         if (Objects.nonNull(field)) {
                             Result result = new Result();
                             result.setId(s.isPk());
+                            result.setIndex(mybatisLabel.index);
                             result.setProperty(s.getColumProperty());
                             result.setJavaType(field.getType());
                             result.setSelectNormal(s);
diff --git a/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/LambdaWrapperTest.java b/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/LambdaWrapperTest.java
index 714a82a..472994e 100644
--- a/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/LambdaWrapperTest.java
+++ b/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/LambdaWrapperTest.java
@@ -713,7 +713,7 @@ class LambdaWrapperTest {
         MPJLambdaWrapper<UserDO> wrapper = new MPJLambdaWrapper<UserDO>()
                 .leftJoin(AddressDO.class, AddressDO::getUserId, UserDO::getId)
                 .leftJoin(AreaDO.class, AreaDO::getId, AddressDO::getAreaId);
-        Integer integer = userMapper.selectCount(wrapper);
+        Object integer = userMapper.selectCount(wrapper);
 
         ThreadLocalUtils.set("SELECT COUNT( * ) FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) LEFT JOIN area t2 ON (t2.id = t1.area_id) WHERE t.del=false AND t1.del=false AND t2.del=false");
         MPJLambdaWrapper<UserDO> wrapper1 = new MPJLambdaWrapper<UserDO>()