diff --git a/src/planner/insert_plan.go b/src/planner/insert_plan.go
index 972dba6f..353733e9 100644
--- a/src/planner/insert_plan.go
+++ b/src/planner/insert_plan.go
@@ -198,8 +198,6 @@ func (p *InsertPlan) JSON() string {
 	}
 
 	var parts []xcontext.QueryTuple
-	// Sort.
-	sort.Sort(xcontext.QueryTuples(p.Querys))
 	parts = append(parts, p.Querys...)
 	exp := &explain{
 		RawQuery:   p.RawQuery,