From 9f533950a2864277d4210a355531abc49da0246b Mon Sep 17 00:00:00 2001
From: Jinzhu <wosmvp@gmail.com>
Date: Thu, 28 Oct 2021 17:12:31 +0800
Subject: [PATCH] Add dest value if current size equal zero

---
 scan.go      | 3 ++-
 tests/go.mod | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/scan.go b/scan.go
index 360ed8b9..119049c6 100644
--- a/scan.go
+++ b/scan.go
@@ -225,7 +225,8 @@ func Scan(rows *sql.Rows, db *DB, mode ScanMode) {
 		case reflect.Slice, reflect.Array:
 			var elem reflect.Value
 
-			if !update && reflectValue.Len() != 0 {
+			if !update || reflectValue.Len() == 0 {
+				update = false
 				db.Statement.ReflectValue.Set(reflect.MakeSlice(reflectValue.Type(), 0, 20))
 			}
 
diff --git a/tests/go.mod b/tests/go.mod
index ab3ef898..52781a8b 100644
--- a/tests/go.mod
+++ b/tests/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/google/uuid v1.3.0
 	github.com/jinzhu/now v1.1.2
 	github.com/lib/pq v1.10.3
-	gorm.io/driver/mysql v1.1.2
+	gorm.io/driver/mysql v1.1.3
 	gorm.io/driver/postgres v1.2.1
 	gorm.io/driver/sqlite v1.2.2
 	gorm.io/driver/sqlserver v1.1.2