From fefdbc9430e5b730a3d2291e52872f93dfd86b53 Mon Sep 17 00:00:00 2001
From: Pavel Skorikov <pskorikov@ozon.ru>
Date: Tue, 13 May 2025 17:47:29 +0300
Subject: [PATCH] Scan Decimal

---
 decimal.go      | 5 +++++
 decimal_test.go | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/decimal.go b/decimal.go
index a37a230..d568d37 100644
--- a/decimal.go
+++ b/decimal.go
@@ -1852,6 +1852,11 @@ func (d *Decimal) Scan(value interface{}) error {
 		*d = NewFromUint64(v)
 		return nil
 
+	case Decimal:
+		// while clickhouse return type Decimal
+		*d = v
+		return nil
+
 	default:
 		// default is trying to interpret value stored as string
 		str, err := unquoteIfQuoted(v)
diff --git a/decimal_test.go b/decimal_test.go
index d398f2d..6d07715 100644
--- a/decimal_test.go
+++ b/decimal_test.go
@@ -2465,6 +2465,11 @@ func TestDecimal_Scan(t *testing.T) {
 	scanHelper(t, dbvalueStr, expected)
 	scanHelper(t, valueStr, expected)
 
+	// also test decimal
+	dbvalueDecimal := New(2, 3)
+	expected = New(2, 3)
+	scanHelper(t, dbvalueDecimal, expected)
+
 	type foo struct{}
 	a := Decimal{}
 	err = a.Scan(foo{})