From 7f7535825723fad091839e8383b34b67f9f67ac3 Mon Sep 17 00:00:00 2001
From: heroicNeZha <25311962+heroicNeZha@users.noreply.github.com>
Date: Thu, 20 Jan 2022 09:53:29 +0800
Subject: [PATCH] style

---
 src/graph/planner/plan/PlanNode.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/graph/planner/plan/PlanNode.cpp b/src/graph/planner/plan/PlanNode.cpp
index d622ff526c8..77ceecacf8d 100644
--- a/src/graph/planner/plan/PlanNode.cpp
+++ b/src/graph/planner/plan/PlanNode.cpp
@@ -373,7 +373,9 @@ void PlanNode::releaseSymbols() {
 void PlanNode::updateSymbols() {
   auto symTbl = qctx_->symTable();
   for (auto out : outputVars_) {
-    out && symTbl->updateWrittenBy(out->name, out->name, this);
+    if (out != nullptr) {
+      symTbl->updateWrittenBy(out->name, out->name, this);
+    }
   }
 }