From 2e35ef4490bc5a08acbd9efcdd7a9b0d8667ce4f Mon Sep 17 00:00:00 2001
From: hwx65 <1780011298@qq.com>
Date: Wed, 3 Jan 2024 11:57:00 +0000
Subject: [PATCH] Fix the memory leak bug of VectorHeader to_string

---
 src/sql/engine/expr/ob_expr.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/sql/engine/expr/ob_expr.cpp b/src/sql/engine/expr/ob_expr.cpp
index b92b1fe1c..9539e1858 100644
--- a/src/sql/engine/expr/ob_expr.cpp
+++ b/src/sql/engine/expr/ob_expr.cpp
@@ -1350,9 +1350,9 @@ int ToStrVectorHeader::to_string_helper(char *buf, const int64_t buf_len) const
         ObLength length = vector->get_length(i);
         BUF_PRINTF(", len: %d, ptr: %p, hex: ", length, vector->get_payload(i));
         hex_print(vector->get_payload(i), length, buf, buf_len, pos);
+        ObDatum tmp_datum(vector->get_payload(i), length, vector->is_null(i));
         ObObj tmp_obj;
-        ObDatum* tmp_datum = new ObDatum(vector->get_payload(i), length, vector->is_null(i));
-        if (OB_SUCCESS == tmp_datum->to_obj(tmp_obj, expr_.obj_meta_, expr_.obj_datum_map_)) {
+        if (OB_SUCCESS == tmp_datum.to_obj(tmp_obj, expr_.obj_meta_, expr_.obj_datum_map_)) {
           BUF_PRINTF(", value: ");
           pos += tmp_obj.to_string(buf + pos, buf_len - pos);
         }