diff --git a/advisor/heuristic.go b/advisor/heuristic.go
index 4262cb54f6527fed9de89f0e5b70565421c9f364..f482edd941d1edfbad2c6f1a93c93607fff273ca 100644
--- a/advisor/heuristic.go
+++ b/advisor/heuristic.go
@@ -2185,7 +2185,7 @@ func (q *Query4Audit) RuleCompareWithFunction() Rule {
 				}
 			*/
 
-		// func(a) between func(c) and func(d)
+			// func(a) between func(c) and func(d)
 		case *sqlparser.RangeCond:
 			switch n.Left.(type) {
 			case *sqlparser.SQLVal, *sqlparser.ColName:
@@ -3236,7 +3236,7 @@ func RuleMySQLError(item string, err error) Rule {
 	case "ERR.000":
 		return Rule{
 			Item:     item,
-			Summary:  "MySQL执行出错 " + err.Error(),
+			Summary:  "no available MySQL environment, sql parse failed: " + err.Error(),
 			Severity: "L8",
 			Content:  err.Error(),
 		}
diff --git a/advisor/heuristic_test.go b/advisor/heuristic_test.go
index 81e7920a668d18e7374de9e7f0898eda8dedd603..6c0be851cc2d4e103ce9593d62cd21635a1dda42 100644
--- a/advisor/heuristic_test.go
+++ b/advisor/heuristic_test.go
@@ -1164,7 +1164,7 @@ func TestRuleRecursiveDependency(t *testing.T) {
 			`ALTER TABLE tbl2 add FOREIGN KEY (p_id) REFERENCES tab1(p_id);`,
 		},
 		{
-			`ALTER TABLE tbl2 ADD KEY (p_id) p_id;`,
+			`ALTER TABLE tbl2 ADD KEY p_id (p_id);`,
 		},
 	}
 	for _, sql := range sqls[0] {
@@ -2128,7 +2128,7 @@ func TestRuleVarcharVSChar(t *testing.T) {
 func TestRuleCreateDualTable(t *testing.T) {
 	common.Log.Debug("Entering function: %s", common.GetFunctionName())
 	sqls := []string{
-		`create table dual(id int, primary key (id));`,
+		"create table `dual`(id int, primary key (id));",
 	}
 	for _, sql := range sqls {
 		q, err := NewQuery4Audit(sql)
diff --git a/advisor/rules.go b/advisor/rules.go
index beadb79a69afb20b481809d4f67438c400930f8e..f3332332d6fed839800a895b39de5c3fae51e819 100644
--- a/advisor/rules.go
+++ b/advisor/rules.go
@@ -42,7 +42,7 @@ type Query4Audit struct {
 
 // NewQuery4Audit return a struct for Query4Audit
 func NewQuery4Audit(sql string, options ...string) (*Query4Audit, error) {
-	var err, tiErr error
+	var err, vErr error
 	var charset string
 	var collation string
 
@@ -56,14 +56,14 @@ func NewQuery4Audit(sql string, options ...string) (*Query4Audit, error) {
 
 	q := &Query4Audit{Query: sql}
 	// vitess语法解析
-	q.Stmt, err = sqlparser.Parse(sql)
+	q.Stmt, vErr = sqlparser.Parse(sql)
+	if vErr != nil {
+		common.Log.Warn("NewQuery4Audit vitess parse Error: %s", vErr.Error())
+	}
 
 	// TiDB 语法解析仅作为补充，不检查语法错误
 	// TODO: charset, collation
-	q.TiStmt, tiErr = ast.TiParse(sql, charset, collation)
-	if tiErr != nil {
-		common.Log.Warn("NewQuery4Audit ast.Tiparse Error: %s", tiErr.Error())
-	}
+	q.TiStmt, err = ast.TiParse(sql, charset, collation)
 	return q, err
 }