diff --git a/internal/querycoord/impl.go b/internal/querycoord/impl.go
index 84584a9c36c151a04821421612a88cdcaefe3980..19c1c937b936e7bfab6428089345b60e21d18c64 100644
--- a/internal/querycoord/impl.go
+++ b/internal/querycoord/impl.go
@@ -212,6 +212,7 @@ func (qc *QueryCoord) ReleaseCollection(ctx context.Context, req *querypb.Releas
 	return status, nil
 }
 
+// ShowPartitions return all the partitions that have been loaded
 func (qc *QueryCoord) ShowPartitions(ctx context.Context, req *querypb.ShowPartitionsRequest) (*querypb.ShowPartitionsResponse, error) {
 	collectionID := req.CollectionID
 	log.Debug("show partitions start, ", zap.Int64("collectionID", collectionID), zap.Int64s("partitionIDs", req.PartitionIDs))