From 1ad688bc4ae5c76633392585c3cd33c080153673 Mon Sep 17 00:00:00 2001
From: Aiee <18348405+Aiee@users.noreply.github.com>
Date: Tue, 6 Dec 2022 19:23:09 +0800
Subject: [PATCH] Fix argument

---
 src/graph/executor/logic/ArgumentExecutor.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/graph/executor/logic/ArgumentExecutor.cpp b/src/graph/executor/logic/ArgumentExecutor.cpp
index 61b4c6b6cbd..eab46383f17 100644
--- a/src/graph/executor/logic/ArgumentExecutor.cpp
+++ b/src/graph/executor/logic/ArgumentExecutor.cpp
@@ -24,7 +24,9 @@ folly::Future<Status> ArgumentExecutor::execute() {
   std::unordered_set<Value> unique;
   for (; iter->valid(); iter->next()) {
     auto &val = iter->getColumn(alias);
-    if (!val.isVertex()) {
+    if (val.isNull()) {
+      continue;
+    } else if (!val.isVertex()) {
       return Status::Error("Argument only support vertex, but got %s, which is type %s, ",
                            val.toString().c_str(),
                            val.typeName().c_str());