From 741cd60b1bd4bd4940e4813a1b301cc864647dd8 Mon Sep 17 00:00:00 2001
From: Emir Beganovic <beganovic.emir@gmail.com>
Date: Sun, 5 May 2019 11:24:26 +0400
Subject: [PATCH 1/2] Add test for keeping float precision

---
 main_test.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/main_test.go b/main_test.go
index 1fa38b98..b3e87831 100644
--- a/main_test.go
+++ b/main_test.go
@@ -1164,6 +1164,20 @@ func TestCountWithQueryOption(t *testing.T) {
 	}
 }
 
+func TestFloatColumnPrecision(t *testing.T) {
+	type FloatTest struct {
+		ID         string  `gorm:"primary_key"`
+		FloatValue float64 `gorm:"column:float_value" sql:"type:float(255,5);"`
+	}
+	DB.DropTable(&FloatTest{})
+	DB.AutoMigrate(&FloatTest{})
+
+	data := FloatTest{ID: "uuid", FloatValue: 112.57315}
+	if err := DB.Save(&data).Error; err != nil || data.ID != "uuid" || data.FloatValue != 112.57315 {
+		t.Errorf("Float value should not lose precision")
+	}
+}
+
 func BenchmarkGorm(b *testing.B) {
 	b.N = 2000
 	for x := 0; x < b.N; x++ {

From abe3fa8631a3726d37c4d3d497f6c1d2b698f90d Mon Sep 17 00:00:00 2001
From: Emir Beganovic <beganovic.emir@gmail.com>
Date: Sun, 5 May 2019 11:51:05 +0400
Subject: [PATCH 2/2] Run only on MySQL and sqlite

---
 main_test.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/main_test.go b/main_test.go
index b3e87831..25b5940c 100644
--- a/main_test.go
+++ b/main_test.go
@@ -1165,6 +1165,10 @@ func TestCountWithQueryOption(t *testing.T) {
 }
 
 func TestFloatColumnPrecision(t *testing.T) {
+	if dialect := os.Getenv("GORM_DIALECT"); dialect != "mysql" && dialect != "sqlite" {
+		t.Skip()
+	}
+
 	type FloatTest struct {
 		ID         string  `gorm:"primary_key"`
 		FloatValue float64 `gorm:"column:float_value" sql:"type:float(255,5);"`