diff --git a/src/client/src/tscLocalMerge.c b/src/client/src/tscLocalMerge.c
index 5133309e8c73b31d4413d51982726450ac53eba0..839f6474b33026af5a4c3fea40ad3aded3ef2722 100644
--- a/src/client/src/tscLocalMerge.c
+++ b/src/client/src/tscLocalMerge.c
@@ -884,11 +884,11 @@ static void genFinalResWithoutFill(SSqlRes* pRes, SLocalReducer *pLocalReducer,
   tFilePage * pBeforeFillData = pLocalReducer->pResultBuf;
 
   pRes->data = pLocalReducer->pFinalRes;
-  pRes->numOfRows = pBeforeFillData->num;
+  pRes->numOfRows = (int32_t) pBeforeFillData->num;
 
   if (pQueryInfo->limit.offset > 0) {
     if (pQueryInfo->limit.offset < pRes->numOfRows) {
-      int32_t prevSize = (int32_t)pBeforeFillData->num;
+      int32_t prevSize = (int32_t) pBeforeFillData->num;
       tColModelErase(pLocalReducer->finalModel, pBeforeFillData, prevSize, 0, (int32_t)pQueryInfo->limit.offset - 1);
 
       /* remove the hole in column model */
diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index fa4dcd1a76e7b1ec695655daa51d764c7b53a865..a4ac9b9d92310285eea206a554f985a1a35c18a3 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -394,7 +394,7 @@ int taos_affected_rows(TAOS_RES *tres) {
   SSqlObj* pSql = (SSqlObj*) tres;
   if (pSql == NULL || pSql->signature != pSql) return 0;
 
-  return (int)(pSql->res.numOfRows);
+  return pSql->res.numOfRows;
 }
 
 TAOS_FIELD *taos_fetch_fields(TAOS_RES *res) {
@@ -440,53 +440,12 @@ int taos_retrieve(TAOS_RES *res) {
 
   tscResetForNextRetrieve(pRes);
 
-  if (pCmd->command < TSDB_SQL_LOCAL) {
-    pCmd->command = (pCmd->command > TSDB_SQL_MGMT) ? TSDB_SQL_RETRIEVE : TSDB_SQL_FETCH;
-  }
-  tscProcessSql(pSql);
-
-  return (int)pRes->numOfRows;
-}
-
-int taos_fetch_block_impl(TAOS_RES *res, TAOS_ROW *rows) {
-  SSqlObj *pSql = (SSqlObj *)res;
-  SSqlCmd *pCmd = &pSql->cmd;
-  SSqlRes *pRes = &pSql->res;
-
-  if (pRes->qhandle == 0 || pSql->signature != pSql) {
-    *rows = NULL;
-    return 0;
-  }
-
-  // Retrieve new block
-  tscResetForNextRetrieve(pRes);
   if (pCmd->command < TSDB_SQL_LOCAL) {
     pCmd->command = (pCmd->command > TSDB_SQL_MGMT) ? TSDB_SQL_RETRIEVE : TSDB_SQL_FETCH;
   }
 
   tscProcessSql(pSql);
-  if (pRes->numOfRows == 0) {
-    *rows = NULL;
-    return 0;
-  }
-
-  // secondary merge has handle this situation
-  if (pCmd->command != TSDB_SQL_RETRIEVE_LOCALMERGE) {
-    pRes->numOfClauseTotal += pRes->numOfRows;
-  }
-
-  SQueryInfo *pQueryInfo = tscGetQueryInfoDetail(pCmd, 0);
-  if (pQueryInfo == NULL)
-    return 0;
-
-  assert(0);
-  for (int i = 0; i < pQueryInfo->fieldsInfo.numOfOutput; ++i) {
-    tscGetResultColumnChr(pRes, &pQueryInfo->fieldsInfo, i, 0);
-  }
-
-  *rows = pRes->tsrow;
-
-  return (int)((pQueryInfo->order.order == TSDB_ORDER_DESC) ? pRes->numOfRows : -pRes->numOfRows);
+  return pRes->numOfRows;
 }
 
 static bool needToFetchNewBlock(SSqlObj* pSql) {
@@ -573,7 +532,7 @@ int taos_fetch_block(TAOS_RES *res, TAOS_ROW *rows) {
   *rows = pRes->urow;
 
   tscClearSqlOwner(pSql);
-  return (int32_t) pRes->numOfRows;
+  return pRes->numOfRows;
 }
 
 int taos_select_db(TAOS *taos, const char *db) {
diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 4f2d98433b5d686d97c6e3631a4f8c98362d8eaa..7066477aedadd48bbe0d6d4213d848e77960d541 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -948,7 +948,7 @@ static void tsCompRetrieveCallback(void* param, TAOS_RES* tres, int32_t numOfRow
     if (!pRes->completed) {
       taosGetTmpfilePath("ts-join", pSupporter->path);
       pSupporter->f = fopen(pSupporter->path, "w");
-      pRes->row = (int32_t)pRes->numOfRows;
+      pRes->row = pRes->numOfRows;
 
       taos_fetch_rows_a(tres, tsCompRetrieveCallback, param);
       return;
@@ -974,7 +974,7 @@ static void tsCompRetrieveCallback(void* param, TAOS_RES* tres, int32_t numOfRow
     
     // TODO check for failure
     pSupporter->f = fopen(pSupporter->path, "w");
-    pRes->row = (int32_t)pRes->numOfRows;
+    pRes->row = pRes->numOfRows;
 
     // set the callback function
     pSql->fp = tscJoinQueryCallback;
@@ -2059,7 +2059,7 @@ static void tscRetrieveFromDnodeCallBack(void *param, TAOS_RES *tres, int numOfR
     }
     
     int32_t ret = saveToBuffer(trsupport->pExtMemBuffer[idx], pDesc, trsupport->localBuffer, pRes->data,
-                               (int32_t)pRes->numOfRows, pQueryInfo->groupbyExpr.orderType);
+                               pRes->numOfRows, pQueryInfo->groupbyExpr.orderType);
     if (ret != 0) { // set no disk space error info, and abort retry
       tscAbortFurtherRetryRetrieval(trsupport, tres, TSDB_CODE_TSC_NO_DISKSPACE);
     } else if (pRes->completed) {