From 6531afb0a739b56cbc097da45525f61140e09d36 Mon Sep 17 00:00:00 2001
From: James Chu <gd344040290@gmail.com>
Date: Thu, 23 Nov 2023 11:36:34 +0800
Subject: [PATCH] fix npe in traverse stream executor

---
 src/graph/executor/stream/TraverseStreamExecutor.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/graph/executor/stream/TraverseStreamExecutor.cpp b/src/graph/executor/stream/TraverseStreamExecutor.cpp
index cfacf21600d..c20fabfe26d 100644
--- a/src/graph/executor/stream/TraverseStreamExecutor.cpp
+++ b/src/graph/executor/stream/TraverseStreamExecutor.cpp
@@ -362,8 +362,8 @@ void TraverseStreamExecutor::expand(GetNeighborsIter* iter, TraverseRoundContext
   if (iter->numRows() == 0) {
     return;
   }
-  auto* vFilter = traverse_->vFilter()->clone();
-  auto* eFilter = traverse_->eFilter()->clone();
+  auto* vFilter = traverse_->vFilter() ? traverse_->vFilter()->clone() : nullptr;
+  auto* eFilter = traverse_->eFilter() ? traverse_->eFilter()->clone() : nullptr;
   QueryExpressionContext ctx(ectx_);
 
   Value curVertex;