Chore: remove xorm from preference (#53803)

* Chore: remove xorm from preference

* separte feature toggle

* fix comments

* fix comments

* remove the dublicated namedexec

pkg/services/sqlstore/sqlstore.go

@@ -299,6 +299,10 @@ func (ss *SQLStore) buildConnectionString() (string, error) {
 			cnnstr += "&sql_mode='ANSI_QUOTES'"
 		}
 
+		if ss.Cfg.IsFeatureToggleEnabled("newDBLibrary") {
+			cnnstr += "&parseTime=true"
+		}
+
 		cnnstr += ss.buildExtraConnectionString('&')
 	case migrator.Postgres:
 		addr, err := util.SplitHostPortDefault(ss.dbCfg.Host, "127.0.0.1", "5432")

pkg/services/sqlstore/sqlutil/sqlutil.go

@@ -28,7 +28,7 @@ func MySQLTestDB() TestDB {
 	if port == "" {
 		port = "3306"
 	}
-	conn_str := fmt.Sprintf("grafana:password@tcp(%s:%s)/grafana_tests?collation=utf8mb4_unicode_ci&sql_mode='ANSI_QUOTES'", host, port)
+	conn_str := fmt.Sprintf("grafana:password@tcp(%s:%s)/grafana_tests?collation=utf8mb4_unicode_ci&sql_mode='ANSI_QUOTES'&parseTime=true", host, port)
 	return TestDB{
 		DriverName: "mysql",
 		ConnStr:    conn_str,