From 37e6398ed6ba4ec791f7f0642de0eb9628486c87 Mon Sep 17 00:00:00 2001
From: bigsheeper <yihao.dai@zilliz.com>
Date: Tue, 30 Nov 2021 20:15:35 +0800
Subject: [PATCH] [skip ci] Add comment for filterDeleteNode (#12490)

Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
---
 internal/querynode/flow_graph_filter_delete_node.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/internal/querynode/flow_graph_filter_delete_node.go b/internal/querynode/flow_graph_filter_delete_node.go
index 0643cb38fd..aa66980660 100644
--- a/internal/querynode/flow_graph_filter_delete_node.go
+++ b/internal/querynode/flow_graph_filter_delete_node.go
@@ -26,6 +26,7 @@ import (
 	"go.uber.org/zap"
 )
 
+// filterDeleteNode is one of the nodes in delta flow graph
 type filterDeleteNode struct {
 	baseNode
 	collectionID UniqueID