diff --git a/config/my.cnf b/config/my.cnf
index 746d79d..d360aa4 100644
--- a/config/my.cnf
+++ b/config/my.cnf
@@ -14,6 +14,10 @@ collation-server=utf8mb4_unicode_ci
 
 init_connect='SET NAMES utf8mb4'
 
+#group_concat_max_len=1024
+#group_concat_max_len=10240
+group_concat_max_len=-1
+
 [client]
 
 #utf8mb4字符集可以存储emoji表情字符