From f672047f75d7211a78b1667dbc53f8f2cf823851 Mon Sep 17 00:00:00 2001
From: pigwing <xpigwing@gmail.com>
Date: Thu, 14 Apr 2022 10:08:27 +0800
Subject: [PATCH] fix memory leak? (#11447)

---
 src/connector/C#/src/TDengineDriver/TDengineDriver.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/connector/C#/src/TDengineDriver/TDengineDriver.cs b/src/connector/C#/src/TDengineDriver/TDengineDriver.cs
index 8b53bda562..193428fe8f 100644
--- a/src/connector/C#/src/TDengineDriver/TDengineDriver.cs
+++ b/src/connector/C#/src/TDengineDriver/TDengineDriver.cs
@@ -235,6 +235,7 @@ namespace TDengineDriver
 
             IntPtr commandBuffer = Marshal.StringToCoTaskMemUTF8(command);
             res = Query(conn, commandBuffer);
+            Marshal.FreeCoTaskMem(commandBuffer);
             return res;
         }
 
-- 
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