Fix Scan postgres uuid

types.go

@@ -128,7 +128,11 @@ func (o *Uuid) Scan(pSrc interface{}) error {
 		return o.UnmarshalText([]byte(src))
 
 	case []byte:
-		return o.UnmarshalBinary(src)
+		if len(src) == length {
+			return o.UnmarshalBinary(src)
+		} else {
+			return o.UnmarshalText(src)
+		}
 
 	default:
 		return fmt.Errorf("uuid.Uuid.Scan: cannot scan type %T into Uuid", pSrc)

types_test.go

@@ -2,8 +2,9 @@ package uuid
 
 import (
 	"errors"
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestUuid_Bytes(t *testing.T) {
@@ -198,6 +199,11 @@ func TestUuid_Scan(t *testing.T) {
 	assert.NoError(t, err, "When nil there should be no error")
 	assert.Equal(t, NameSpaceDNS.String(), v.String(), "Values should be the same")
 
+	var v3 Uuid
+	err = v3.Scan([]byte(NameSpaceDNS.String()))
+	assert.NoError(t, err, "When []byte represents string should be no error")
+	assert.Equal(t, NameSpaceDNS.String(), v3.String(), "Values should be the same")
+
 	err = v.Scan(22)
 	assert.Error(t, err, "When wrong type should error")
 }