diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/query/Brackets.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/query/Brackets.java
index 9617f4b9..2525571f 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/query/Brackets.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/query/Brackets.java
@@ -78,11 +78,6 @@ public class Brackets extends QueryCondition {
         return childCondition.when(fn);
     }
 
-    @Override
-    protected QueryCondition getPrevEffectiveCondition() {
-        return childCondition.getPrevEffectiveCondition();
-    }
-
     @Override
     protected QueryCondition getNextEffectiveCondition() {
         return childCondition.getNextEffectiveCondition();
diff --git a/mybatis-flex-core/src/test/java/com/mybatisflex/coretest/DynamicConditionTest.java b/mybatis-flex-core/src/test/java/com/mybatisflex/coretest/DynamicConditionTest.java
index 590965ec..0d18aa94 100644
--- a/mybatis-flex-core/src/test/java/com/mybatisflex/coretest/DynamicConditionTest.java
+++ b/mybatis-flex-core/src/test/java/com/mybatisflex/coretest/DynamicConditionTest.java
@@ -131,4 +131,21 @@ public class DynamicConditionTest {
         System.out.println(queryWrapper.toSQL());
     }
 
+    @Test
+    public void test08() {
+        QueryWrapper queryWrapper = QueryWrapper.create().
+            from(ACCOUNT)
+            .where(ACCOUNT.ID.eq(1)
+                .and(ACCOUNT.AGE.in(17, 18, 19).or(ACCOUNT.USER_NAME.eq("zhang san"))
+            ));
+
+        QueryCondition condition = CPI.getWhereQueryCondition(queryWrapper);
+        while (condition != null) {
+            System.out.println(condition.getColumn().getName());
+            condition = CPI.getNextCondition(condition);
+        }
+
+        System.out.println(queryWrapper.toSQL());
+    }
+
 }