diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index 0e20c66305..f233af35a3 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -439,6 +439,8 @@ void tscFreeSqlResult(SSqlObj *pSql);
  * @param pObj
  */
 void tscFreeSqlObj(SSqlObj *pSql);
+void tscFreeSubobj(SSqlObj* pSql);
+
 void tscFreeRegisteredSqlObj(void *pSql);
 
 void tscCloseTscObj(void *pObj);
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index d6deb7d7e2..7085318e35 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -2647,7 +2647,6 @@ void tscInitMsgsFp() {
   tscProcessMsgRsp[TSDB_SQL_SHOW_CREATE_TABLE] = tscProcessShowCreateRsp;
   tscProcessMsgRsp[TSDB_SQL_SHOW_CREATE_DATABASE] = tscProcessShowCreateRsp;
   
-
   tscKeepConn[TSDB_SQL_SHOW] = 1;
   tscKeepConn[TSDB_SQL_RETRIEVE] = 1;
   tscKeepConn[TSDB_SQL_SELECT] = 1;
diff --git a/src/client/src/tscStream.c b/src/client/src/tscStream.c
index a9cd1965e8..7699e6f459 100644
--- a/src/client/src/tscStream.c
+++ b/src/client/src/tscStream.c
@@ -299,6 +299,7 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
     tfree(pTableMetaInfo->pTableMeta);
 
     tscFreeSqlResult(pSql);
+    tscFreeSubobj(pSql);    
     tfree(pSql->pSubs);
     pSql->subState.numOfSub = 0;
     pTableMetaInfo->vgroupList = tscVgroupInfoClear(pTableMetaInfo->vgroupList);
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 8d320c9a83..ad36246461 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -447,7 +447,7 @@ void tscFreeSqlResult(SSqlObj* pSql) {
   memset(&pSql->res, 0, sizeof(SSqlRes));
 }
 
-static void tscFreeSubobj(SSqlObj* pSql) {
+void tscFreeSubobj(SSqlObj* pSql) {
   if (pSql->subState.numOfSub == 0) {
     return;
   }
diff --git a/tests/test-all.sh b/tests/test-all.sh
index adb9fa006e..883c1495e9 100755
--- a/tests/test-all.sh
+++ b/tests/test-all.sh
@@ -25,7 +25,9 @@ function stopTaosd {
 function dohavecore(){
   corefile=`find $corepath -mmin 1`  
   core_file=`echo $corefile|cut -d " " -f2`
-  echo $core_file
+  echo "corefile:$core_file"
+  echo "corepath:$corepath"
+  ls -l $corepath
   proc=`echo $corefile|cut -d "_" -f3`
   if [ -n "$corefile" ];then
     echo 'taosd or taos has generated core'