diff --git a/plugins/shard/shard-plugin.c b/plugins/shard/shard-plugin.c
index 776d2d1..bb1a50d 100644
--- a/plugins/shard/shard-plugin.c
+++ b/plugins/shard/shard-plugin.c
@@ -392,7 +392,8 @@ explain_shard_sql(network_mysqld_con *con, sharding_plan_t *plan)
 
     rv = sharding_parse_groups(con->client->default_db, st->sql_context, &(con->srv->query_stats), con->key, plan);
 
-    con->modified_sql = sharding_modify_sql(st->sql_context, &(con->hav_condi), con->srv->is_groupby_need_reconstruct);
+    con->modified_sql = sharding_modify_sql(st->sql_context, &(con->hav_condi),
+            con->srv->is_groupby_need_reconstruct, plan->groups->len);
     if (con->modified_sql) {
         sharding_plan_set_modified_sql(plan, con->modified_sql);
     }
@@ -725,7 +726,8 @@ proxy_parse_query(network_mysqld_con *con)
 static int
 wrap_check_sql(network_mysqld_con *con, struct sql_context_t *sql_context)
 {
-    con->modified_sql = sharding_modify_sql(sql_context, &(con->hav_condi), con->srv->is_groupby_need_reconstruct);
+    con->modified_sql = sharding_modify_sql(sql_context, &(con->hav_condi),
+            con->srv->is_groupby_need_reconstruct, con->sharding_plan->groups->len);
     if (con->modified_sql) {
         g_message("orig_sql: %s", con->orig_sql->str);
         g_message("modified:  %s", con->modified_sql->str);
diff --git a/plugins/shard/sharding-parser.c b/plugins/shard/sharding-parser.c
index 251b335..d6d9336 100644
--- a/plugins/shard/sharding-parser.c
+++ b/plugins/shard/sharding-parser.c
@@ -169,7 +169,7 @@ prepare_for_sql_modify_orderby(sql_select_t *select)
 }
 
 GString *
-sharding_modify_sql(sql_context_t *context, having_condition_t *hav_condi, int is_groupby_need_reconstruct)
+sharding_modify_sql(sql_context_t *context, having_condition_t *hav_condi, int is_groupby_need_reconstruct, int groups)
 {
     if (context->stmt_type == STMT_SELECT && context->sql_statement) {
         sql_select_t *select = context->sql_statement;
@@ -206,7 +206,7 @@ sharding_modify_sql(sql_context_t *context, having_condition_t *hav_condi, int i
         guint64 orig_limit = 0;
 
         /* (LIMIT a, b) ==> (LIMIT 0, a+b) */
-        if (select->offset && select->offset->num_value > 0 && select->limit) {
+        if (groups > 1 && select->offset && select->offset->num_value > 0 && select->limit) {
             prepare_for_sql_modify_limit(select, &orig_limit, &orig_offset);
             need_reconstruct = TRUE;
         }
diff --git a/plugins/shard/sharding-parser.h b/plugins/shard/sharding-parser.h
index ef39498..6afa93c 100644
--- a/plugins/shard/sharding-parser.h
+++ b/plugins/shard/sharding-parser.h
@@ -39,7 +39,7 @@
 
 NETWORK_API int sharding_parse_groups(GString *, sql_context_t *, query_stats_t *, guint64, sharding_plan_t *);
 
-NETWORK_API GString *sharding_modify_sql(sql_context_t *, having_condition_t *, int);
+NETWORK_API GString *sharding_modify_sql(sql_context_t *, having_condition_t *, int, int);
 
 NETWORK_API void sharding_filter_sql(sql_context_t *);