diff --git a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AddressMapper.java b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AddressMapper.java
index 246de25..fcb0786 100644
--- a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AddressMapper.java
+++ b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AddressMapper.java
@@ -1,10 +1,9 @@
 package com.github.yulichang.test.join.mapper;
 
-import com.github.yulichang.base.MPJBaseMapper;
 import com.github.yulichang.test.join.entity.AddressDO;
 import org.apache.ibatis.annotations.Mapper;
 
 @Mapper
 @SuppressWarnings("unused")
-public interface AddressMapper extends MPJBaseMapper<AddressDO> {
+public interface AddressMapper extends MyBaseMapper<AddressDO> {
 }
diff --git a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AreaMapper.java b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AreaMapper.java
index 2eb72d7..163567d 100644
--- a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AreaMapper.java
+++ b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/AreaMapper.java
@@ -1,10 +1,9 @@
 package com.github.yulichang.test.join.mapper;
 
-import com.github.yulichang.base.MPJBaseMapper;
 import com.github.yulichang.test.join.entity.AreaDO;
 import org.apache.ibatis.annotations.Mapper;
 
 @Mapper
 @SuppressWarnings("unused")
-public interface AreaMapper extends MPJBaseMapper<AreaDO> {
+public interface AreaMapper extends MyBaseMapper<AreaDO> {
 }
diff --git a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/MYBaseMapper.java b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/MyBaseMapper.java
similarity index 56%
rename from mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/MYBaseMapper.java
rename to mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/MyBaseMapper.java
index c6c1603..34cc230 100644
--- a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/MYBaseMapper.java
+++ b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/MyBaseMapper.java
@@ -3,7 +3,11 @@ package com.github.yulichang.test.join.mapper;
 import com.github.yulichang.base.MPJBaseMapper;
 import org.apache.ibatis.annotations.Mapper;
 
+import java.util.List;
+
 @Mapper
 @SuppressWarnings("unused")
-public interface MYBaseMapper<T> extends MPJBaseMapper<T> {
+public interface MyBaseMapper<T> extends MPJBaseMapper<T> {
+
+    int insertBatchSomeColumn(List<T> entityList);
 }
diff --git a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/UserMapper.java b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/UserMapper.java
index acbbdfa..bc22156 100644
--- a/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/UserMapper.java
+++ b/mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/mapper/UserMapper.java
@@ -1,10 +1,9 @@
 package com.github.yulichang.test.join.mapper;
 
-import com.github.yulichang.base.MPJBaseMapper;
 import com.github.yulichang.test.join.entity.UserDO;
 import org.apache.ibatis.annotations.Mapper;
 
 @Mapper
-public interface UserMapper extends MPJBaseMapper<UserDO> {
+public interface UserMapper extends MyBaseMapper<UserDO> {
 
 }