diff --git a/pkg/common/utils/mysql/doris.go b/pkg/common/utils/mysql/doris.go
index 68609cdd..608049a6 100644
--- a/pkg/common/utils/mysql/doris.go
+++ b/pkg/common/utils/mysql/doris.go
@@ -18,11 +18,12 @@
 package mysql
 
 import (
-	_ "github.com/go-sql-driver/mysql"
-	"k8s.io/klog/v2"
 	"sort"
 	"strconv"
 	"strings"
+
+	_ "github.com/go-sql-driver/mysql"
+	"k8s.io/klog/v2"
 )
 
 const (
@@ -67,7 +68,6 @@ type Backend struct {
 	TabletNum               int64   `json:"tablet_num" db:"TabletNum"`
 	DataUsedCapacity        string  `json:"data_used_capacity" db:"DataUsedCapacity"`
 	TrashUsedCapacity       string  `json:"trash_used_capacity" db:"TrashUsedCapacity"`
-	TrashUsedCapcacity      string  `json:"trash_used_capcacity" db:"TrashUsedCapcacity"`
 	AvailCapacity           string  `json:"avail_capacity" db:"AvailCapacity"`
 	TotalCapacity           string  `json:"total_capacity" db:"TotalCapacity"`
 	UsedPct                 string  `json:"used_pct" db:"UsedPct"`
diff --git a/pkg/common/utils/mysql/mysql.go b/pkg/common/utils/mysql/mysql.go
index faa0076c..dbfda27e 100644
--- a/pkg/common/utils/mysql/mysql.go
+++ b/pkg/common/utils/mysql/mysql.go
@@ -60,6 +60,9 @@ type DB struct {
 	*sqlx.DB
 }
 
+// Debugging this code cannot be done through a standalone process on the host machine;
+// it can only be done by building the operator because it depends on the network configuration of the Kubernetes cluster.
+
 func NewDorisSqlDB(cfg DBConfig, tlsConfig *TLSConfig, secret *corev1.Secret) (*DB, error) {
 	dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s", cfg.User, cfg.Password, cfg.Host, cfg.Port, cfg.Database)
 	rootCertPool := x509.NewCertPool()
@@ -140,22 +143,26 @@ func (db *DB) Close() error {
 }
 
 func (db *DB) Exec(query string, args ...interface{}) (sql.Result, error) {
-	return db.DB.Exec(query, args...)
+	return db.DB.Unsafe().Exec(query, args...)
 }
 
 func (db *DB) Select(dest interface{}, query string, args ...interface{}) error {
 	return db.DB.Select(dest, query, args...)
 }
 
+func (db *DB) USelect(dest interface{}, query string, args ...interface{}) error {
+	return db.DB.Unsafe().Select(dest, query, args...)
+}
+
 func (db *DB) ShowFrontends() ([]*Frontend, error) {
 	var fes []*Frontend
-	err := db.Unsafe().Select(&fes, "show frontends")
+	err := db.USelect(&fes, "show frontends")
 	return fes, err
 }
 
 func (db *DB) ShowBackends() ([]*Backend, error) {
 	var bes []*Backend
-	err := db.Unsafe().Select(&bes, "show backends")
+	err := db.USelect(&bes, "show backends")
 	return bes, err
 }