diff --git a/dialect/mysql.go b/dialect/mysql.go
index 151c1076..a1c0a26e 100644
--- a/dialect/mysql.go
+++ b/dialect/mysql.go
@@ -19,7 +19,7 @@ func (s *mysql) SupportLastInsertId() bool {
 func (d *mysql) SqlTag(column interface{}, size int) string {
 	switch column.(type) {
 	case time.Time:
-		return "timestamp"
+		return "datetime"
 	case bool, sql.NullBool:
 		return "boolean"
 	case int, int8, int16, int32, uint, uint8, uint16, uint32:
diff --git a/gorm_test.go b/gorm_test.go
index e6e638af..ab257f6f 100644
--- a/gorm_test.go
+++ b/gorm_test.go
@@ -8,6 +8,7 @@ import (
 	_ "github.com/go-sql-driver/mysql"
 	_ "github.com/lib/pq"
 	_ "github.com/mattn/go-sqlite3"
+	"os"
 	"reflect"
 	"strconv"
 	"testing"
@@ -84,13 +85,20 @@ var (
 
 func init() {
 	var err error
-
-	db, err = Open("postgres", "user=gorm dbname=gorm sslmode=disable")
-	// CREATE USER 'gorm'@'localhost' IDENTIFIED BY 'gorm';
-	// CREATE DATABASE 'gorm';
-	// GRANT ALL ON gorm.* TO 'gorm'@'localhost';
-	// db, err = Open("mysql", "gorm:gorm@/gorm?charset=utf8&parseTime=True")
-	// db, err = Open("sqlite3", "/tmp/gorm.db")
+	switch os.Getenv("GORM_DIALECT") {
+	case "mysql":
+		// CREATE USER 'gorm'@'localhost' IDENTIFIED BY 'gorm';
+		// CREATE DATABASE 'gorm';
+		// GRANT ALL ON gorm.* TO 'gorm'@'localhost';
+		fmt.Println("testing mysql...")
+		db, err = Open("mysql", "gorm:gorm@/gorm?charset=utf8&parseTime=True")
+	case "sqlite":
+		fmt.Println("testing sqlite3...")
+		db, err = Open("sqlite3", "/tmp/gorm.db")
+	default:
+		fmt.Println("testing postgres...")
+		db, err = Open("postgres", "user=gorm dbname=gorm sslmode=disable")
+	}
 	// db.SetLogger(log.New(os.Stdout, "\r\n", 0))
 	// db.LogMode(true)
 
diff --git a/test_all.sh b/test_all.sh
new file mode 100755
index 00000000..6c5593b3
--- /dev/null
+++ b/test_all.sh
@@ -0,0 +1,5 @@
+dialects=("postgres" "mysql" "sqlite")
+
+for dialect in "${dialects[@]}" ; do
+    GORM_DIALECT=${dialect} go test
+done