发布v2.18.6版本，更新内容请查看：https://github.com/bufanyun/hotgo/blob/v2.0/docs/guide-zh-CN/start-update-log.md

server/internal/library/hgorm/dao.go

@@ -182,12 +182,12 @@ func IsUnique(ctx context.Context, dao daoInstance, where g.Map, message string,
 		m = m.WhereNot(field, pkId[0])
 	}
 
-	count, err := m.Count(1)
+	exist, err := m.Exist()
 	if err != nil {
 		return err
 	}
 
-	if count > 0 {
+	if exist {
 		if message == "" {
 			for k := range where {
 				message = fmt.Sprintf("in the table：%s, %v not uniqued", dao.Table(), where[k])