diff --git a/reflect.go b/reflect.go
index 3c39137..31a1201 100644
--- a/reflect.go
+++ b/reflect.go
@@ -26,7 +26,9 @@ func (star *StarRows) setAllRefValue(stc interface{}, skey string, rows int) err
 		tp := t.Field(i)
 		srFrd := v.Field(i)
 		seg := tp.Tag.Get(skey)
-
+		if seg == "" && !tp.IsExported() {
+			continue
+		}
 		if srFrd.Kind() == reflect.Ptr && reflect.TypeOf(srFrd.Interface()).Elem().Kind() == reflect.Struct {
 			if seg == "" {
 				continue
@@ -49,9 +51,6 @@ func (star *StarRows) setAllRefValue(stc interface{}, skey string, rows int) err
 				continue
 			}
 		}
-		if seg == "" {
-			continue
-		}
 		if _, ok := star.Row(rows).columnref[seg]; !ok {
 			continue
 		}
@@ -83,7 +82,7 @@ func (star *StarRows) setAllRefValue(stc interface{}, skey string, rows int) err
 		case reflect.Float32:
 			v.Field(i).SetFloat(float64(star.Row(rows).MustFloat32(seg)))
 		case reflect.Slice, reflect.Array:
-			if v.Field(i).Elem().Kind() == reflect.Uint8 {
+			if t.Field(i).Type.Elem().Kind() == reflect.Uint8 {
 				v.Field(i).SetBytes(star.Row(rows).MustBytes(seg))
 			}
 		case reflect.Interface, reflect.Struct, reflect.Ptr:
@@ -138,6 +137,9 @@ func getAllRefValue(stc interface{}, skey string) (map[string]interface{}, error
 		tp := t.Field(i)
 		srFrd := v.Field(i)
 		seg := tp.Tag.Get(skey)
+		if seg == "" && !tp.IsExported() {
+			continue
+		}
 		if srFrd.Kind() == reflect.Ptr && reflect.TypeOf(srFrd.Interface()).Elem().Kind() == reflect.Struct {
 			if srFrd.IsNil() {
 				continue
@@ -196,6 +198,9 @@ func getAllRefKey(stc interface{}, skey string) ([]string, error) {
 		srFrd := v.Field(i)
 		profile := t.Field(i)
 		seg := profile.Tag.Get(skey)
+		if seg == "" && !profile.IsExported() {
+			continue
+		}
 		if srFrd.Kind() == reflect.Ptr && reflect.TypeOf(srFrd.Interface()).Elem().Kind() == reflect.Struct {
 			if srFrd.IsNil() {
 				continue