diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index a3e1e624c196815b508c5bce4a9a9ae6985b01eb..773924c1105f6fd70b9c86bb03e35f5b29aa9eaf 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -20,14 +20,6 @@
 extern "C" {
 #endif
 
-#include <errno.h>
-#include <pthread.h>
-#include <semaphore.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
 #include "os.h"
 #include "taos.h"
 #include "taosmsg.h"
diff --git a/src/client/src/tscJoinProcess.c b/src/client/src/tscJoinProcess.c
index 1f26e2a0e53b5f0c337ec1febcbdd19f5a8bdf50..bd9a782d8cd052f53b57b85a75ceb3bcf3bf44b8 100644
--- a/src/client/src/tscJoinProcess.c
+++ b/src/client/src/tscJoinProcess.c
@@ -396,7 +396,10 @@ static void joinRetrieveCallback(void* param, TAOS_RES* tres, int numOfRows) {
   SSqlObj*                pParentSql = pSupporter->pObj;
 
   SSqlObj* pSql = (SSqlObj*)tres;
-  SQueryInfo *pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, 0);
+  SSqlCmd* pCmd = &pSql->cmd;
+  SSqlRes* pRes = &pSql->res;
+  
+  SQueryInfo *pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
   
   if ((pQueryInfo->type & TSDB_QUERY_TYPE_JOIN_SEC_STAGE) == 0) {
     if (pSupporter->pState->code != TSDB_CODE_SUCCESS) {
@@ -443,7 +446,11 @@ static void joinRetrieveCallback(void* param, TAOS_RES* tres, int numOfRows) {
         assert(pQueryInfo->numOfTables == 1);
 
         // for projection query, need to try next vnode
-        if ((++pMeterMetaInfo->vnodeIndex) < pMeterMetaInfo->pMetricMeta->numOfVnodes) {
+        int32_t totalVnode = pMeterMetaInfo->pMetricMeta->numOfVnodes;
+        if ((++pMeterMetaInfo->vnodeIndex) < totalVnode) {
+          tscTrace("%p current vnode:%d exhausted, try next:%d. total vnode:%d. current numOfRes:%d", pSql,
+                   pMeterMetaInfo->vnodeIndex - 1, pMeterMetaInfo->vnodeIndex, totalVnode, pRes->numOfTotal);
+  
           pSql->cmd.command = TSDB_SQL_SELECT;
           pSql->fp = tscJoinQueryCallback;
           tscProcessSql(pSql);
diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index 2175d017ad9f419a1c0b5002d6f57cdd6f62904e..2cfe0f949fed63ffaa3f5cf2aba5754d5bdbcef1 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -450,7 +450,7 @@ static bool tscHashRemainDataInSubqueryResultSet(SSqlObj *pSql) {
       SQueryInfo *    pQueryInfo1 = tscGetQueryInfoDetail(pCmd1, pCmd1->clauseIndex);
       SMeterMetaInfo *pMetaInfo = tscGetMeterMetaInfoFromQueryInfo(pQueryInfo1, 0);
 
-      assert(pQueryInfo->numOfTables == 1);
+      assert(pQueryInfo1->numOfTables == 1);
 
       /*
        * if the global limitation is not reached, and current result has not exhausted, or next more vnodes are
@@ -675,8 +675,6 @@ TAOS_ROW taos_fetch_row_impl(TAOS_RES *res) {
 
 TAOS_ROW taos_fetch_row(TAOS_RES *res) {
   SSqlObj *pSql = (SSqlObj *)res;
-//  SSqlCmd *pCmd = &pSql->cmd;
-//  SSqlRes *pRes = &pSql->res;
 
   if (pSql == NULL || pSql->signature != pSql) {
     globalCode = TSDB_CODE_DISCONNECTED;