Fix data race problem when using Scan, close #3662

finisher_api.go

@@ -365,9 +365,13 @@ func (db *DB) Rows() (*sql.Rows, error) {
 
 // Scan scan value to a struct
 func (db *DB) Scan(dest interface{}) (tx *DB) {
-	currentLogger, newLogger := db.Logger, logger.Recorder.New()
+	config := *db.Config
+	currentLogger, newLogger := config.Logger, logger.Recorder.New()
+	config.Logger = newLogger
+
 	tx = db.getInstance()
-	tx.Logger = newLogger
+	tx.Config = &config
+
 	if rows, err := tx.Rows(); err != nil {
 		tx.AddError(err)
 	} else {