diff --git a/internal/querynode/plan.go b/internal/querynode/plan.go
index e509e81e5819613b3aedac81501f22c6d0a4ec92..7fb5507adb81095718dd4b343f0febdbf38e7259 100644
--- a/internal/querynode/plan.go
+++ b/internal/querynode/plan.go
@@ -36,6 +36,7 @@ type SearchPlan struct {
 	cSearchPlan C.CSearchPlan
 }
 
+// createSearchPlan returns a new SearchPlan and error
 func createSearchPlan(col *Collection, dsl string) (*SearchPlan, error) {
 	if col.collectionPtr == nil {
 		return nil, errors.New("nil collection ptr, collectionID = " + fmt.Sprintln(col.id))