diff --git a/src/client/src/tscPrepare.c b/src/client/src/tscPrepare.c
index bac8920d8f1d17cb53756378724a56b37dead866..8bb776ffeefa68992411433d98f8162fb4186198 100644
--- a/src/client/src/tscPrepare.c
+++ b/src/client/src/tscPrepare.c
@@ -1156,27 +1156,6 @@ static void insertBatchClean(STscStmt* pStmt) {
 
   tfree(pCmd->insertParam.pTableNameList);
 
-/*
-  STableDataBlocks** p = taosHashIterate(pCmd->insertParam.pTableBlockHashList, NULL);
-
-  STableDataBlocks* pOneTableBlock = *p;
-
-  while (1) {
-    SSubmitBlk* pBlocks = (SSubmitBlk*) pOneTableBlock->pData;
-
-    pOneTableBlock->size = sizeof(SSubmitBlk);
-
-    pBlocks->numOfRows = 0;
-
-    p = taosHashIterate(pCmd->insertParam.pTableBlockHashList, p);
-    if (p == NULL) {
-      break;
-    }
-
-    pOneTableBlock = *p;
-  }
-*/
-
   pCmd->insertParam.pDataBlocks = tscDestroyBlockArrayList(pCmd->insertParam.pDataBlocks);
   pCmd->insertParam.numOfTables = 0;
 
@@ -1499,7 +1478,7 @@ int taos_stmt_prepare(TAOS_STMT* stmt, const char* sql, unsigned long length) {
   pRes->numOfRows = 1;
 
   strtolower(pSql->sqlstr, sql);
-  tscDebugL("%p SQL: %s", pSql, pSql->sqlstr);
+  tscDebugL("0x%"PRIx64" SQL: %s", pSql->self, pSql->sqlstr);
 
   if (tscIsInsertData(pSql->sqlstr)) {
     pStmt->isInsert = true;
@@ -1604,7 +1583,7 @@ int taos_stmt_set_tbname_tags(TAOS_STMT* stmt, const char* name, TAOS_BIND* tags
   if (taosHashGetSize(pCmd->insertParam.pTableBlockHashList) > 0) {
     SHashObj* hashList = pCmd->insertParam.pTableBlockHashList;
     pCmd->insertParam.pTableBlockHashList = NULL;
-    tscResetSqlCmd(pCmd, true);
+    tscResetSqlCmd(pCmd, false);
     pCmd->insertParam.pTableBlockHashList = hashList;
   }
 
@@ -1663,7 +1642,7 @@ int taos_stmt_close(TAOS_STMT* stmt) {
   } else {
     if (pStmt->multiTbInsert) {
       taosHashCleanup(pStmt->mtb.pTableHash);
-      pStmt->mtb.pTableBlockHashList = tscDestroyBlockHashTable(pStmt->mtb.pTableBlockHashList, true);
+      pStmt->mtb.pTableBlockHashList = tscDestroyBlockHashTable(pStmt->mtb.pTableBlockHashList, false);
       taosHashCleanup(pStmt->pSql->cmd.insertParam.pTableBlockHashList);
       pStmt->pSql->cmd.insertParam.pTableBlockHashList = NULL;
       taosArrayDestroy(pStmt->mtb.tags);
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 83ec886e199bbc90a0aaaff5b5c25a0e658293cf..74dbe42eeb5f784b6be65437b7df390fc1857ea6 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1332,7 +1332,7 @@ void tscFreeSubobj(SSqlObj* pSql) {
   tscDebug("0x%"PRIx64" start to free sub SqlObj, numOfSub:%d", pSql->self, pSql->subState.numOfSub);
 
   for(int32_t i = 0; i < pSql->subState.numOfSub; ++i) {
-    tscDebug("0x%"PRIx64" free sub SqlObj:%p, index:%d", pSql->self, pSql->pSubs[i], i);
+    tscDebug("0x%"PRIx64" free sub SqlObj:0x%"PRIx64", index:%d", pSql->self, pSql->pSubs[i]->self, i);
     taos_free_result(pSql->pSubs[i]);
     pSql->pSubs[i] = NULL;
   }
@@ -1784,7 +1784,7 @@ int32_t tscMergeTableDataBlocks(SInsertStatementParam *pInsertParam, bool freeBl
       tscSortRemoveDataBlockDupRows(pOneTableBlock);
       char* ekey = (char*)pBlocks->data + pOneTableBlock->rowSize*(pBlocks->numOfRows-1);
 
-      tscDebug("0x%"PRIx64" name:%s, name:%d rows:%d sversion:%d skey:%" PRId64 ", ekey:%" PRId64, pInsertParam->objectId, tNameGetTableName(&pOneTableBlock->tableName),
+      tscDebug("0x%"PRIx64" name:%s, tid:%d rows:%d sversion:%d skey:%" PRId64 ", ekey:%" PRId64, pInsertParam->objectId, tNameGetTableName(&pOneTableBlock->tableName),
           pBlocks->tid, pBlocks->numOfRows, pBlocks->sversion, GET_INT64_VAL(pBlocks->data), GET_INT64_VAL(ekey));
 
       int32_t len = pBlocks->numOfRows * (pOneTableBlock->rowSize + expandSize) + sizeof(STColumn) * tscGetNumOfColumns(pOneTableBlock->pTableMeta);