diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index bae9926f63..3713a2c071 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -2877,6 +2877,7 @@ static int32_t setBlockIntoRes(SStreamScanInfo* pInfo, const SSDataBlock* pBlock
     return 0;
   }
 
+  blockDataFreeRes((SSDataBlock*)pBlock);
   code = calBlockTbName(pInfo, pInfo->pRes, 0);
   QUERY_CHECK_CODE(code, lino, _end);
 
diff --git a/tests/system-test/7-tmq/tmq_td32526.py b/tests/system-test/7-tmq/tmq_td32526.py
new file mode 100644
index 0000000000..70eb91e916
--- /dev/null
+++ b/tests/system-test/7-tmq/tmq_td32526.py
@@ -0,0 +1,53 @@
+import taos
+import sys
+import time
+import socket
+import os
+import threading
+
+from util.log import *
+from util.sql import *
+from util.cases import *
+from util.dnodes import *
+from util.common import *
+from taos.tmq import *
+sys.path.append("./7-tmq")
+from tmqCommon import *
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 135, 'asynclog': 0}
+    def init(self, conn, logSql, replicaVar=1):
+        self.replicaVar = int(replicaVar)
+        tdLog.debug(f"start to excute {__file__}")
+        tdSql.init(conn.cursor())
+        #tdSql.init(conn.cursor(), logSql)  # output sql.txt file
+
+    def run(self):
+        tdSql.execute(f'create database if not exists db_5466')
+        tdSql.execute(f'use db_5466')
+        tdSql.execute(f'CREATE STABLE meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)')
+        tdSql.execute("INSERT INTO d1001 USING meters TAGS('California.SanFrancisco', 2) VALUES('2018-10-05 14:38:05.000',10.30000,219,0.31000)")
+
+        buildPath = tdCom.getBuildPath()
+        cmdStr = '%s/build/bin/tmq_td32526'%(buildPath)
+        # tdLog.info(cmdStr)
+        # os.system(cmdStr)
+        #
+        # tdSql.execute("drop topic db_5466_topic")
+        tdSql.execute(f'alter stable meters add column  item_tags nchar(500)')
+        tdSql.execute(f'alter stable meters add column  new_col nchar(100)')
+        tdSql.execute("create topic db_5466_topic as select * from db_5466.meters")
+
+        tdSql.execute("INSERT INTO d1001 USING meters TAGS('California.SanFrancisco', 2) VALUES('2018-10-06 14:38:05.000',10.30000,219,0.31000, 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa', '1')")
+
+        tdLog.info(cmdStr)
+        os.system(cmdStr)
+
+        return
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())
\ No newline at end of file
diff --git a/utils/test/c/CMakeLists.txt b/utils/test/c/CMakeLists.txt
index 991a004a74..29b2fcc99f 100644
--- a/utils/test/c/CMakeLists.txt
+++ b/utils/test/c/CMakeLists.txt
@@ -4,6 +4,7 @@ add_executable(tmq_sim tmqSim.c)
 add_executable(create_table createTable.c)
 add_executable(tmq_taosx_ci tmq_taosx_ci.c)
 add_executable(tmq_ts5466 tmq_ts5466.c)
+add_executable(tmq_td32526 tmq_td32526.c)
 add_executable(tmq_write_raw_test tmq_write_raw_test.c)
 add_executable(write_raw_block_test write_raw_block_test.c)
 add_executable(sml_test sml_test.c)
@@ -62,6 +63,13 @@ target_link_libraries(
     PUBLIC common
     PUBLIC os
 )
+target_link_libraries(
+    tmq_td32526
+    PUBLIC taos
+    PUBLIC util
+    PUBLIC common
+    PUBLIC os
+)
 target_link_libraries(
     tmq_taosx_ci
     PUBLIC taos
diff --git a/utils/test/c/tmq_td32526.c b/utils/test/c/tmq_td32526.c
new file mode 100644
index 0000000000..42d38ec56c
--- /dev/null
+++ b/utils/test/c/tmq_td32526.c
@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "cJSON.h"
+#include "taos.h"
+#include "tmsg.h"
+#include "types.h"
+
+void tmq_commit_cb_print(tmq_t* tmq, int32_t code, void* param) {
+  printf("commit %d tmq %p param %p\n", code, tmq, param);
+}
+
+tmq_t* build_consumer() {
+  tmq_conf_t* conf = tmq_conf_new();
+  tmq_conf_set(conf, "group.id", "g1");
+  tmq_conf_set(conf, "client.id", "my app 1");
+  tmq_conf_set(conf, "td.connect.user", "root");
+  tmq_conf_set(conf, "td.connect.pass", "taosdata");
+  tmq_conf_set(conf, "msg.with.table.name", "true");
+  tmq_conf_set(conf, "enable.auto.commit", "true");
+  tmq_conf_set(conf, "auto.offset.reset", "earliest");
+  tmq_conf_set(conf, "msg.consume.excluded", "1");
+
+  tmq_conf_set_auto_commit_cb(conf, tmq_commit_cb_print, NULL);
+  tmq_t* tmq = tmq_consumer_new(conf, NULL, 0);
+  assert(tmq);
+  tmq_conf_destroy(conf);
+  return tmq;
+}
+
+tmq_list_t* build_topic_list() {
+  tmq_list_t* topic_list = tmq_list_new();
+  tmq_list_append(topic_list, "db_5466_topic");
+  return topic_list;
+}
+
+int printRow(char *str, TAOS_ROW row, TAOS_FIELD *fields, int numFields) {
+  int  len = 0;
+  char split = ' ';
+
+  for (int i = 0; i < numFields; ++i) {
+    if (i > 0) {
+      str[len++] = split;
+    }
+
+    if (row[i] == NULL) {
+      len += sprintf(str + len, "%s", "NULL");
+      continue;
+    }
+
+    switch (fields[i].type) {
+      case TSDB_DATA_TYPE_TINYINT:
+        len += sprintf(str + len, "%d", *((int8_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_UTINYINT:
+        len += sprintf(str + len, "%u", *((uint8_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_SMALLINT:
+        len += sprintf(str + len, "%d", *((int16_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_USMALLINT:
+        len += sprintf(str + len, "%u", *((uint16_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_INT:
+        len += sprintf(str + len, "%d", *((int32_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_UINT:
+        len += sprintf(str + len, "%u", *((uint32_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_BIGINT:
+        len += sprintf(str + len, "%" PRId64, *((int64_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_UBIGINT:
+        len += sprintf(str + len, "%" PRIu64, *((uint64_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_FLOAT: {
+        float fv = 0;
+        fv = GET_FLOAT_VAL(row[i]);
+        len += sprintf(str + len, "%f", fv);
+      } break;
+
+      case TSDB_DATA_TYPE_DOUBLE: {
+        double dv = 0;
+        dv = GET_DOUBLE_VAL(row[i]);
+        len += sprintf(str + len, "%lf", dv);
+      } break;
+
+      case TSDB_DATA_TYPE_BINARY:
+      case TSDB_DATA_TYPE_VARBINARY:
+      case TSDB_DATA_TYPE_NCHAR:
+      case TSDB_DATA_TYPE_GEOMETRY: {
+        int32_t charLen = varDataLen((char *)row[i] - VARSTR_HEADER_SIZE);
+        memcpy(str + len, row[i], charLen);
+        len += charLen;
+      } break;
+
+      case TSDB_DATA_TYPE_TIMESTAMP:
+        len += sprintf(str + len, "%" PRId64, *((int64_t *)row[i]));
+        break;
+
+      case TSDB_DATA_TYPE_BOOL:
+        len += sprintf(str + len, "%d", *((int8_t *)row[i]));
+      default:
+        break;
+    }
+  }
+
+  return len;
+}
+
+/**
+ * @brief print column name and values of each row
+ *
+ * @param res
+ * @return int
+ */
+static int printResult(TAOS_RES *res) {
+  TAOS_ROW row = NULL;
+  int32_t cnt = 0;
+  while ((row = taos_fetch_row(res))) {
+
+    int         numFields = taos_num_fields(res);
+    TAOS_FIELD *fields = taos_fetch_fields(res);
+    char        header[256] = {0};
+    int len = 0;
+    for (int i = 0; i < numFields; ++i) {
+      len += sprintf(header + len, "%s ", fields[i].name);
+    }
+    puts(header);
+
+    char temp[1024] = {0};
+    printRow(temp, row, fields, numFields);
+    if (cnt == 0){
+      ASSERT(strcmp(temp, "1538721485000 10.300000 219 0.310000 NULL NULL California.SanFrancisco 2") == 0);
+    }else if(cnt == 1){
+      ASSERT(strcmp(temp, "1538807885000 10.300000 219 0.310000 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 1 California.SanFrancisco 2") == 0);
+    }
+    cnt++;
+  }
+  return 0;
+}
+
+void basic_consume_loop(tmq_t* tmq, tmq_list_t* topics) {
+  int32_t code;
+
+  if ((code = tmq_subscribe(tmq, topics))) {
+    fprintf(stderr, "%% Failed to start consuming topics: %s\n", tmq_err2str(code));
+    printf("subscribe err\n");
+    return;
+  }
+  int32_t cnt = 0;
+  while (1) {
+    TAOS_RES* tmqmessage = tmq_consumer_poll(tmq, 5000);
+    if (tmqmessage) {
+      cnt++;
+      printResult(tmqmessage);
+      taos_free_result(tmqmessage);
+    } else {
+      break;
+    }
+  }
+
+  code = tmq_consumer_close(tmq);
+  if (code)
+    fprintf(stderr, "%% Failed to close consumer: %s\n", tmq_err2str(code));
+  else
+    fprintf(stderr, "%% Consumer closed\n");
+}
+
+int main(int argc, char* argv[]) {
+  tmq_t*      tmq = build_consumer();
+  tmq_list_t* topic_list = build_topic_list();
+  basic_consume_loop(tmq, topic_list);
+  tmq_list_destroy(topic_list);
+}
\ No newline at end of file