diff --git a/src/client/src/tscAsync.c b/src/client/src/tscAsync.c
index 9a85fbf8f65193d6239c6b58bf0c6577d77a6250..34ecc25c59507f836078164130440f89627e86e7 100644
--- a/src/client/src/tscAsync.c
+++ b/src/client/src/tscAsync.c
@@ -347,8 +347,8 @@ void tscProcessAsyncRes(SSchedMsg *pMsg) {
   (*pSql->fp)(pSql->param, taosres, code);
 
   if (shouldFree) {
-    tscFreeSqlObj(pSql);
     tscTrace("%p Async sql is automatically freed in async res", pSql);
+    tscFreeSqlObj(pSql);
   }
 }
 
diff --git a/src/client/src/tscProfile.c b/src/client/src/tscProfile.c
index a7a774b3a8ce71a608d15ec9a71f931a7a59a06a..ab214384ad816950db30a7708e7bb332a9cb21b6 100644
--- a/src/client/src/tscProfile.c
+++ b/src/client/src/tscProfile.c
@@ -292,7 +292,7 @@ void tscKillConnection(STscObj *pObj) {
 
   pthread_mutex_unlock(&pObj->mutex);
 
-  taos_close(pObj);
-
   tscTrace("connection:%p is killed", pObj);
+
+  taos_close(pObj);
 }
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index e977d57241a007e239428cff43dd85e3704cf1c8..94fba04b3e613ac380ff2d3ad1e62afbe24c1ee2 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -600,8 +600,8 @@ void *tscProcessMsgFromServer(char *msg, void *ahandle, void *thandle) {
           taos_close(pObj);
           tscTrace("%p Async sql close failed connection", pSql);
         } else {
-          tscFreeSqlObj(pSql);
           tscTrace("%p Async sql is automatically freed", pSql);
+          tscFreeSqlObj(pSql);
         }
       }
     }
diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index 99bc9632deeff8bf98c8090e0fac7604104f84c9..a0089379a9c71434ed1a7aa7547724145241b89f 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -796,8 +796,8 @@ void taos_free_result_imp(TAOS_RES *res, int keepCmd) {
     tscTrace("%p qhandle is null, abort free, fp:%p", pSql, pSql->fp);
     if (pSql->fp != NULL) {
       pSql->thandle = NULL;
-      tscFreeSqlObj(pSql);
       tscTrace("%p Async SqlObj is freed by app", pSql);
+      tscFreeSqlObj(pSql);
     } else if (keepCmd) {
       tscFreeSqlResult(pSql);
     } else {
diff --git a/src/client/src/tscStream.c b/src/client/src/tscStream.c
index 8dc8ad49b5b134c9cc3f5bd3987ae61c5273f33c..94fb35d52231746da27d21a755cad823c806321f 100644
--- a/src/client/src/tscStream.c
+++ b/src/client/src/tscStream.c
@@ -582,10 +582,10 @@ void taos_close_stream(TAOS_STREAM *handle) {
     tscRemoveFromStreamList(pStream, pSql);
 
     taosTmrStopA(&(pStream->pTimer));
+    tscTrace("%p stream:%p is closed", pSql, pStream);
     tscFreeSqlObj(pSql);
     pStream->pSql = NULL;
 
-    tscTrace("%p stream:%p is closed", pSql, pStream);
     tfree(pStream);
   }
 }