diff --git a/sqle/driver/mysql/mysql_test.go b/sqle/driver/mysql/mysql_test.go
index 8b98c0798..7ed440266 100644
--- a/sqle/driver/mysql/mysql_test.go
+++ b/sqle/driver/mysql/mysql_test.go
@@ -38,6 +38,12 @@ WHERE last_name = 'Smith';`)
 	assert.NoError(t, err)
 	assert.Len(t, nodes, 1)
 	assert.Equal(t, nodes[0].Type, driverV2.SQLTypeDML)
+
+	nodes, err = DefaultMysqlInspect().Parse(context.TODO(),
+		"SELECT id, ROW_NUMBER() OVER (PARTITION BY dept ORDER BY salary) AS rn FROM emp")
+	assert.NoError(t, err)
+	assert.Len(t, nodes, 1)
+	assert.Equal(t, driverV2.SQLTypeDQL, nodes[0].Type)
 }
 
 func TestInspect_onlineddlWithGhost(t *testing.T) {
@@ -209,6 +215,11 @@ CREATE TABLE new_tbl AS SELECT * FROM orig_tbl;`,
 CREATEaa TABLE new_tbl AS SELECT * FROM orig_tbl;`,
 			driverV2.SQLTypeDDL,
 		},
+		{
+			"case 8 window function select",
+			`SELECT id, ROW_NUMBER() OVER (PARTITION BY nominate_app_id ORDER BY create_date ASC) AS rn FROM sourcing.tt_nomi_record`,
+			driverV2.SQLTypeDQL,
+		},
 	}
 	i := &MysqlDriverImpl{}
 	for _, arg := range args {
diff --git a/sqle/driver/mysql/rule_00082_test.go b/sqle/driver/mysql/rule_00082_test.go
index 7b4329a61..e02691c18 100644
--- a/sqle/driver/mysql/rule_00082_test.go
+++ b/sqle/driver/mysql/rule_00082_test.go
@@ -74,20 +74,20 @@ func TestRuleSQLE00082(t *testing.T) {
 			},
 		}, newTestResult())
 
-	// case 5: SELECT 语句使用窗口函数可能触发 filesort // TODO 当前解析器解析不了此语法
-	// runAIRuleCase(rule, t, "case 5: SELECT 语句使用窗口函数可能触发 filesort",
-	// 	"SELECT age FROM (SELECT age, ROW_NUMBER() OVER (PARTITION BY age ORDER BY age DESC) gn FROM customers) T WHERE gn=1 LIMIT 1;",
-	// 	session.NewAIMockContext().WithSQL("CREATE TABLE customers (id INT, age INT);"),
-	// 	[]*AIMockSQLExpectation{
-	// 		{
-	// 			Query: "EXPLAIN SELECT age FROM (SELECT age, ROW_NUMBER() OVER (PARTITION BY age ORDER BY age DESC) gn FROM customers) T WHERE gn=1 LIMIT 1;",
-	// 			Rows:  sqlmock.NewRows([]string{"Extra"}).AddRow("Using filesort"),
-	// 		},
-	// 		{
-	// 			Query: "SHOW WARNINGS",
-	// 			Rows:  sqlmock.NewRows(nil),
-	// 		},
-	// 	}, newTestResult().addResult(ruleName))
+	// case 5: SELECT 语句使用窗口函数可能触发 filesort
+	runAIRuleCase(rule, t, "case 5: SELECT 语句使用窗口函数可能触发 filesort",
+		"SELECT age FROM (SELECT age, ROW_NUMBER() OVER (PARTITION BY age ORDER BY age DESC) gn FROM customers) T WHERE gn=1 LIMIT 1;",
+		session.NewAIMockContext().WithSQL("CREATE TABLE customers (id INT, age INT);"),
+		[]*AIMockSQLExpectation{
+			{
+				Query: "EXPLAIN SELECT age FROM (SELECT age, ROW_NUMBER() OVER (PARTITION BY age ORDER BY age DESC) gn FROM customers) T WHERE gn=1 LIMIT 1;",
+				Rows:  sqlmock.NewRows([]string{"Extra"}).AddRow("Using filesort"),
+			},
+			{
+				Query: "SHOW WARNINGS",
+				Rows:  sqlmock.NewRows(nil),
+			},
+		}, newTestResult().addResult(ruleName))
 
 	// case 6: SELECT 语句使用 GROUP BY 和 ORDER BY 不一致可能触发 filesort
 	runAIRuleCase(rule, t, "case 6: SELECT 语句使用 GROUP BY 和 ORDER BY 不一致可能触发 filesort",
diff --git a/sqle/driver/mysql/splitter/splitter.go b/sqle/driver/mysql/splitter/splitter.go
index e83f84384..bf9d77fc0 100644
--- a/sqle/driver/mysql/splitter/splitter.go
+++ b/sqle/driver/mysql/splitter/splitter.go
@@ -16,8 +16,10 @@ type splitter struct {
 }
 
 func NewSplitter() *splitter {
+	p := parser.New()
+	p.EnableWindowFunc(true)
 	return &splitter{
-		parser:    parser.New(),
+		parser:    p,
 		delimiter: NewDelimiter(),
 		scanner:   parser.NewScanner(""),
 	}
diff --git a/sqle/driver/mysql/splitter/splitter_test.go b/sqle/driver/mysql/splitter/splitter_test.go
index b10d1f75c..ec94ad10d 100644
--- a/sqle/driver/mysql/splitter/splitter_test.go
+++ b/sqle/driver/mysql/splitter/splitter_test.go
@@ -249,6 +249,24 @@ Alter table point_trans_shard_00_part_202401 ADD CONSTRAINT chk_point_trans_shar
 	}
 }
 
+func TestParseWindowFunctionSelect(t *testing.T) {
+	parser := NewSplitter()
+	sql := "SELECT id, ROW_NUMBER() OVER (PARTITION BY nominate_app_id ORDER BY create_date ASC) AS rn FROM sourcing.tt_nomi_record WHERE is_delete = 0"
+	stmt, err := parser.ParseSqlText(sql)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(stmt) != 1 {
+		t.Fatalf("expect 1 stmt, got %d", len(stmt))
+	}
+	if _, ok := stmt[0].(*ast.UnparsedStmt); ok {
+		t.Fatal("expect SelectStmt, got UnparsedStmt")
+	}
+	if _, ok := stmt[0].(*ast.SelectStmt); !ok {
+		t.Fatalf("expect SelectStmt, got %T", stmt[0])
+	}
+}
+
 func TestPerfectParse(t *testing.T) {
 	parser := NewSplitter()