diff --git a/src/entry/Maat_hierarchy.cpp b/src/entry/Maat_hierarchy.cpp
index d4e4b84..2664de1 100644
--- a/src/entry/Maat_hierarchy.cpp
+++ b/src/entry/Maat_hierarchy.cpp
@@ -95,7 +95,7 @@ struct Maat_hierarchy_clause
 struct Maat_hierarchy
 {
 	pthread_rwlock_t rwlock;
-	time_t version;
+	time_t version;				//After full update, clause id may indicate a different clause. Comparing hier->version and mid->hier_ver can prevent false positive match.
 	struct bool_matcher* bm;
 
 	struct Maat_hierarchy_compile* hash_compile_by_id;		//key: compile_id, value: struct Maat_hierarchy_compile*.
diff --git a/src/inc_internal/Maat_rule_internal.h b/src/inc_internal/Maat_rule_internal.h
index bdf5c3a..839165c 100644
--- a/src/inc_internal/Maat_rule_internal.h
+++ b/src/inc_internal/Maat_rule_internal.h
@@ -160,7 +160,6 @@ struct Maat_region_inner
 	int expr_id_cnt;
 	int expr_id_lb;	//low boundary
 	int expr_id_ub;	//up boundary
-	enum MAAT_TABLE_TYPE table_type;
 };
 
 
diff --git a/test/test_maatframe.cpp b/test/test_maatframe.cpp
index 5fba454..c8f14fd 100644
--- a/test/test_maatframe.cpp
+++ b/test/test_maatframe.cpp
@@ -4048,16 +4048,19 @@ TEST_F(MaatCmdTest, SameScanStatusWhenClauseUpdate_TSG6419)
 
 
 	//region11->group11--clause1-->compile1
-	//					    	   /    
-	//region21->group21--clause2--/
-	//					   /
-	//region22->group22---/
+	//					    	    /    
+	//region21->group21--clause2---/
+	//					          /
+	//region22->group22--clause3-/
+
+	Maat_command_raw_set_compile(feather, MAAT_OP_DEL, &compile1, compile_table_name, NULL, 2, 0, 0);
+	Maat_command_raw_set_compile(feather, MAAT_OP_ADD, &compile1, compile_table_name, NULL, 3, 0, 0);
 
 	memset(&group22, 0, sizeof(group22));
 	group22.group_id=Maat_command_get_new_group_id(feather);
 	group22.table_name=g2c_tn;
 	group22.compile_id=compile1.config_id;
-	group22.clause_index=2;
+	group22.clause_index=3;
 	Maat_command_raw_set_group2compile(feather, MAAT_OP_ADD, &group22);
 
 	region22.region_id=Maat_command_get_new_region_id(feather);
@@ -4069,6 +4072,10 @@ TEST_F(MaatCmdTest, SameScanStatusWhenClauseUpdate_TSG6419)
 	sleep(1);
 
 	table_id=Maat_table_register(feather, app_id_table_name);
+	
+	ret=Maat_scan_intval(feather, table_id, 31, result, 4, &mid, 0);
+	EXPECT_EQ(ret, -2);
+	
 	ret=Maat_scan_intval(feather, table_id, scan_app_id, result, 4, &mid, 0);
 	EXPECT_EQ(ret, 1);
 	EXPECT_EQ(result[0].config_id, compile1.config_id);