From 1c0685460b66b2e3be300fb8a364e27a8ebfe83c Mon Sep 17 00:00:00 2001
From: jw-guo <jinwei_guo@163.com>
Date: Thu, 11 May 2023 02:27:58 +0000
Subject: [PATCH] [4.x] not return 4016 for empty xid in mysql xa

---
 src/sql/resolver/ob_resolver_utils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sql/resolver/ob_resolver_utils.cpp b/src/sql/resolver/ob_resolver_utils.cpp
index 57a58db89f..b76a8f514f 100644
--- a/src/sql/resolver/ob_resolver_utils.cpp
+++ b/src/sql/resolver/ob_resolver_utils.cpp
@@ -6398,7 +6398,7 @@ int ObResolverUtils::resolve_string(const ParseNode *node, ObString &string)
   } else if (OB_UNLIKELY(T_VARCHAR != node->type_)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("node type is not T_VARCHAR", "type", get_type_name(node->type_));
-  } else if (OB_UNLIKELY(node->str_len_ <= 0)) {
+  } else if (OB_UNLIKELY(node->str_len_ < 0)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("empty string");
   } else {