From 90cceca6e7eb72216bf5d20e8808ae648721315b Mon Sep 17 00:00:00 2001
From: Melbex De Leon <melbex11@gmail.com>
Date: Mon, 30 May 2022 22:32:10 +0800
Subject: [PATCH] fix: reduce allocations when slice of values

---
 scan.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scan.go b/scan.go
index a611a9ce..ef6849cd 100644
--- a/scan.go
+++ b/scan.go
@@ -237,6 +237,7 @@ func Scan(rows Rows, db *DB, mode ScanMode) {
 		switch reflectValue.Kind() {
 		case reflect.Slice, reflect.Array:
 			var elem reflect.Value
+			recyclableStruct := reflect.New(reflectValueType)
 
 			if !update || reflectValue.Len() == 0 {
 				update = false
@@ -261,7 +262,11 @@ func Scan(rows Rows, db *DB, mode ScanMode) {
 						}
 					}
 				} else {
-					elem = reflect.New(reflectValueType)
+					if isPtr {
+						elem = reflect.New(reflectValueType)
+					} else {
+						elem = recyclableStruct
+					}
 				}
 
 				db.scanIntoStruct(rows, elem, values, fields, joinFields)