diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 102d9d545a4b0be873c880609eca68a26bece2cd..1db1c1756af4de411fdeb278f6679acb037ca21d 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -776,7 +776,6 @@ TAOS_RES *taos_query_l(TAOS *taos, const char *sql, int sqlLen) {
   if (qIsDdlQuery(pQueryNode)) {
     CHECK_CODE_GOTO(execDdlQuery(pRequest, pQueryNode), _return);
   } else {
-
     CHECK_CODE_GOTO(getPlan(pRequest, pQueryNode, &pRequest->body.pDag, pNodeList), _return);
     CHECK_CODE_GOTO(scheduleQuery(pRequest, pRequest->body.pDag, pNodeList), _return);
     pRequest->code = terrno;
diff --git a/source/client/test/clientTests.cpp b/source/client/test/clientTests.cpp
index 12e4532b09bd74347b0f62a042df901865047dce..4dda0b3757e73574e98e68ecd382e3b07c7c60bc 100644
--- a/source/client/test/clientTests.cpp
+++ b/source/client/test/clientTests.cpp
@@ -61,643 +61,643 @@ TEST(testCase, connect_Test) {
   taos_close(pConn);
 }
 
-TEST(testCase, create_user_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "create user abc pass 'abc'");
-  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
-    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, create_account_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "create account aabc pass 'abc'");
-  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
-    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, drop_account_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "drop account aabc");
-  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
-    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, show_user_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "show users");
-  TAOS_ROW  pRow = NULL;
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  char str[512] = {0};
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%s\n", str);
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, drop_user_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "drop user abc");
-  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
-    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, show_db_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "show databases");
-  TAOS_ROW  pRow = NULL;
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  char str[512] = {0};
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%s\n", str);
-  }
-
-  taos_close(pConn);
-}
-
-TEST(testCase, create_db_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "create database abc1 vgroups 2");
-  if (taos_errno(pRes) != 0) {
-    printf("error in create db, reason:%s\n", taos_errstr(pRes));
-  }
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  ASSERT_TRUE(pFields == NULL);
-
-  int32_t numOfFields = taos_num_fields(pRes);
-  ASSERT_EQ(numOfFields, 0);
-
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create database abc1 vgroups 4");
-  if (taos_errno(pRes) != 0) {
-    printf("error in create db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_close(pConn);
-}
-
-TEST(testCase, create_dnode_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "create dnode abc1 port 7000");
-  if (taos_errno(pRes) != 0) {
-    printf("error in create dnode, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create dnode 1.1.1.1 port 9000");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create dnode, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  taos_close(pConn);
-}
-
-TEST(testCase, drop_dnode_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "drop dnode 3");
-  if (taos_errno(pRes) != 0) {
-    printf("error in drop dnode, reason:%s\n", taos_errstr(pRes));
-  }
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  ASSERT_TRUE(pFields == NULL);
-
-  int32_t numOfFields = taos_num_fields(pRes);
-  ASSERT_EQ(numOfFields, 0);
-
-  pRes = taos_query(pConn, "drop dnode 4");
-  if (taos_errno(pRes) != 0) {
-    printf("error in drop dnode, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, use_db_test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("error in use db, reason:%s\n", taos_errstr(pRes));
-  }
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  ASSERT_TRUE(pFields == NULL);
-
-  int32_t numOfFields = taos_num_fields(pRes);
-  ASSERT_EQ(numOfFields, 0);
-
-  taos_close(pConn);
-}
-
- TEST(testCase, drop_db_test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  showDB(pConn);
-
-  TAOS_RES* pRes = taos_query(pConn, "drop database abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to drop db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  showDB(pConn);
-
-  pRes = taos_query(pConn, "create database abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("create to drop db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, create_stable_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 2");
-  if (taos_errno(pRes) != 0) {
-    printf("error in create db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create table if not exists abc1.st1(ts timestamp, k int) tags(a int)");
-  if (taos_errno(pRes) != 0) {
-    printf("error in create stable, reason:%s\n", taos_errstr(pRes));
-  }
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  ASSERT_TRUE(pFields == NULL);
-
-  int32_t numOfFields = taos_num_fields(pRes);
-  ASSERT_EQ(numOfFields, 0);
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create stable if not exists abc1.`123_$^)` (ts timestamp, `abc` int) tags(a int)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create super table 123_$^), reason:%s\n", taos_errstr(pRes));
-  }
-
-  pRes = taos_query(pConn, "use abc1");
-  taos_free_result(pRes);
-  pRes = taos_query(pConn, "drop stable `123_$^)`");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to drop super table 123_$^), reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_close(pConn);
-}
-
-TEST(testCase, create_table_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create table if not exists tm0(ts timestamp, k int)");
-  ASSERT_EQ(taos_errno(pRes), 0);
-
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create table if not exists tm0(ts timestamp, k blob)");
-  ASSERT_NE(taos_errno(pRes), 0);
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, create_ctable_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create stable if not exists st1 (ts timestamp, k int ) tags(a int)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create stable, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create table tm0 using st1 tags(1)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create child table tm0, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, show_stable_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != nullptr);
-
-  TAOS_RES* pRes = taos_query(pConn, "show abc1.stables");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to show stables, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    ASSERT_TRUE(false);
-  }
-
-  TAOS_ROW    pRow = NULL;
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  char str[512] = {0};
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%s\n", str);
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, show_vgroup_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "show vgroups");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to show vgroups, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    ASSERT_TRUE(false);
-  }
-
-  TAOS_ROW pRow = NULL;
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  char str[512] = {0};
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%s\n", str);
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, create_multiple_tables) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  ASSERT_NE(pConn, nullptr);
-
-  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create db, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    taos_close(pConn);
-    return;
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "use abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    taos_close(pConn);
-    return;
-  }
-
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create stable if not exists st1 (ts timestamp, k int) tags(a int)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create stable tables, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create table t_2 using st1 tags(1)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create multiple tables, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    ASSERT_TRUE(false);
-  }
-
-  taos_free_result(pRes);
-  pRes = taos_query(pConn, "create table t_3 using st1 tags(2)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create multiple tables, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    ASSERT_TRUE(false);
-  }
-
-  TAOS_ROW    pRow = NULL;
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  char str[512] = {0};
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%s\n", str);
-  }
-
-  taos_free_result(pRes);
-
-  for (int32_t i = 0; i < 20; ++i) {
-    char sql[512] = {0};
-    snprintf(sql, tListLen(sql),
-             "create table t_x_%d using st1 tags(2) t_x_%d using st1 tags(5) t_x_%d using st1 tags(911)", i,
-             (i + 1) * 30, (i + 2) * 40);
-    TAOS_RES* pres = taos_query(pConn, sql);
-    if (taos_errno(pres) != 0) {
-      printf("failed to create table %d\n, reason:%s", i, taos_errstr(pres));
-    }
-    taos_free_result(pres);
-  }
-
-  taos_close(pConn);
-}
-
-TEST(testCase, show_table_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "show tables");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to show tables, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-  }
-
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "show abc1.tables");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to show tables, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-  }
-
-  TAOS_ROW    pRow = NULL;
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  int32_t count = 0;
-  char str[512] = {0};
-
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%d: %s\n", ++count, str);
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, drop_stable_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != nullptr);
-
-  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("error in creating db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "use abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("error in using db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "drop stable st1");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to drop stable, reason:%s\n", taos_errstr(pRes));
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, generated_request_id_test) {
-  SHashObj* phash = taosHashInit(10000, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_ENTRY_LOCK);
-
-  for (int32_t i = 0; i < 50000; ++i) {
-    uint64_t v = generateRequestId();
-    void*    result = taosHashGet(phash, &v, sizeof(v));
-    if (result != nullptr) {
-      printf("0x%lx, index:%d\n", v, i);
-    }
-    assert(result == nullptr);
-    taosHashPut(phash, &v, sizeof(v), NULL, 0);
-  }
-
-  taosHashCleanup(phash);
-}
-
-TEST(testCase, insert_test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  ASSERT_NE(pConn, nullptr);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "insert into t_2 values(now, 1)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create into table t_2, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    ASSERT_TRUE(false);
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-#if 0
-TEST(testCase, create_topic_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("error in use db, reason:%s\n", taos_errstr(pRes));
-  }
-  //taos_free_result(pRes);
-
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  ASSERT_TRUE(pFields == nullptr);
-
-  int32_t numOfFields = taos_num_fields(pRes);
-  ASSERT_EQ(numOfFields, 0);
-
-  taos_free_result(pRes);
-
-  char* sql = "select * from tu";
-  pRes = taos_create_topic(pConn, "test_topic_1", sql, strlen(sql));
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-
-TEST(testCase, tmq_subscribe_Test) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  assert(pConn != NULL);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  if (taos_errno(pRes) != 0) {
-    printf("error in use db, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  tmq_conf_t* conf = tmq_conf_new();
-  tmq_conf_set(conf, "group.id", "tg1");
-  tmq_t* tmq = taos_consumer_new(pConn, conf, NULL, 0);
-  
-  tmq_list_t* topic_list = tmq_list_new();
-  tmq_list_append(topic_list, "test_topic_1");
-  tmq_subscribe(tmq, topic_list);
-
-  while (1) {
-    tmq_message_t* msg = tmq_consume_poll(tmq, 0);
-    printf("get msg\n");
-    //if (msg == NULL) break;
-  }
-}
-#endif
-
-TEST(testCase, tmq_consume_Test) {
-}
-
-TEST(testCase, tmq_commit_TEST) {
-}
-
-TEST(testCase, projection_query_tables) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  ASSERT_NE(pConn, nullptr);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create stable st1 (ts timestamp, k int) tags(a int)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "create table tu using st1 tags(1)");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
-  }
-  taos_free_result(pRes);
-
-  for(int32_t i = 0; i < 100000; ++i) {
-    char sql[512] = {0};
-    sprintf(sql, "insert into tu values(now+%da, %d)", i, i);
-    TAOS_RES* p = taos_query(pConn, sql);
-    if (taos_errno(p) != 0) {
-      printf("failed to insert data, reason:%s\n", taos_errstr(p));
-    }
-
-    taos_free_result(p);
-  }
-
-  pRes = taos_query(pConn, "select * from tu");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    ASSERT_TRUE(false);
-  }
-
-  TAOS_ROW    pRow = NULL;
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  char str[512] = {0};
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%s\n", str);
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
-
-TEST(testCase, projection_query_stables) {
-  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-  ASSERT_NE(pConn, nullptr);
-
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-  taos_free_result(pRes);
-
-  pRes = taos_query(pConn, "select ts from st1");
-  if (taos_errno(pRes) != 0) {
-    printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
-    taos_free_result(pRes);
-    ASSERT_TRUE(false);
-  }
-
-  TAOS_ROW    pRow = NULL;
-  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-  int32_t     numOfFields = taos_num_fields(pRes);
-
-  char str[512] = {0};
-  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-    printf("%s\n", str);
-  }
-
-  taos_free_result(pRes);
-  taos_close(pConn);
-}
+//TEST(testCase, create_user_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "create user abc pass 'abc'");
+//  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
+//    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, create_account_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "create account aabc pass 'abc'");
+//  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
+//    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, drop_account_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "drop account aabc");
+//  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
+//    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, show_user_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "show users");
+//  TAOS_ROW  pRow = NULL;
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  char str[512] = {0};
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%s\n", str);
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, drop_user_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "drop user abc");
+//  if (taos_errno(pRes) != TSDB_CODE_SUCCESS) {
+//    printf("failed to create user, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, show_db_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "show databases");
+//  TAOS_ROW  pRow = NULL;
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  char str[512] = {0};
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%s\n", str);
+//  }
+//
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, create_db_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "create database abc1 vgroups 2");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in create db, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  ASSERT_TRUE(pFields == NULL);
+//
+//  int32_t numOfFields = taos_num_fields(pRes);
+//  ASSERT_EQ(numOfFields, 0);
+//
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create database abc1 vgroups 4");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in create db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, create_dnode_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "create dnode abc1 port 7000");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in create dnode, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create dnode 1.1.1.1 port 9000");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create dnode, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, drop_dnode_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "drop dnode 3");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in drop dnode, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  ASSERT_TRUE(pFields == NULL);
+//
+//  int32_t numOfFields = taos_num_fields(pRes);
+//  ASSERT_EQ(numOfFields, 0);
+//
+//  pRes = taos_query(pConn, "drop dnode 4");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in drop dnode, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, use_db_test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in use db, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  ASSERT_TRUE(pFields == NULL);
+//
+//  int32_t numOfFields = taos_num_fields(pRes);
+//  ASSERT_EQ(numOfFields, 0);
+//
+//  taos_close(pConn);
+//}
+//
+// TEST(testCase, drop_db_test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  showDB(pConn);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "drop database abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to drop db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  showDB(pConn);
+//
+//  pRes = taos_query(pConn, "create database abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("create to drop db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, create_stable_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 2");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in create db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create table if not exists abc1.st1(ts timestamp, k int) tags(a int)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in create stable, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  ASSERT_TRUE(pFields == NULL);
+//
+//  int32_t numOfFields = taos_num_fields(pRes);
+//  ASSERT_EQ(numOfFields, 0);
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create stable if not exists abc1.`123_$^)` (ts timestamp, `abc` int) tags(a int)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create super table 123_$^), reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  pRes = taos_query(pConn, "use abc1");
+//  taos_free_result(pRes);
+//  pRes = taos_query(pConn, "drop stable `123_$^)`");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to drop super table 123_$^), reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, create_table_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create table if not exists tm0(ts timestamp, k int)");
+//  ASSERT_EQ(taos_errno(pRes), 0);
+//
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create table if not exists tm0(ts timestamp, k blob)");
+//  ASSERT_NE(taos_errno(pRes), 0);
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, create_ctable_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create stable if not exists st1 (ts timestamp, k int ) tags(a int)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create stable, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create table tm0 using st1 tags(1)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create child table tm0, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, show_stable_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != nullptr);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "show abc1.stables");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to show stables, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    ASSERT_TRUE(false);
+//  }
+//
+//  TAOS_ROW    pRow = NULL;
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  char str[512] = {0};
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%s\n", str);
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, show_vgroup_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "show vgroups");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to show vgroups, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    ASSERT_TRUE(false);
+//  }
+//
+//  TAOS_ROW pRow = NULL;
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  char str[512] = {0};
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%s\n", str);
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, create_multiple_tables) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  ASSERT_NE(pConn, nullptr);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create db, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    taos_close(pConn);
+//    return;
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "use abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    taos_close(pConn);
+//    return;
+//  }
+//
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create stable if not exists st1 (ts timestamp, k int) tags(a int)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create stable tables, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create table t_2 using st1 tags(1)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create multiple tables, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    ASSERT_TRUE(false);
+//  }
+//
+//  taos_free_result(pRes);
+//  pRes = taos_query(pConn, "create table t_3 using st1 tags(2)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create multiple tables, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    ASSERT_TRUE(false);
+//  }
+//
+//  TAOS_ROW    pRow = NULL;
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  char str[512] = {0};
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%s\n", str);
+//  }
+//
+//  taos_free_result(pRes);
+//
+//  for (int32_t i = 0; i < 20; ++i) {
+//    char sql[512] = {0};
+//    snprintf(sql, tListLen(sql),
+//             "create table t_x_%d using st1 tags(2) t_x_%d using st1 tags(5) t_x_%d using st1 tags(911)", i,
+//             (i + 1) * 30, (i + 2) * 40);
+//    TAOS_RES* pres = taos_query(pConn, sql);
+//    if (taos_errno(pres) != 0) {
+//      printf("failed to create table %d\n, reason:%s", i, taos_errstr(pres));
+//    }
+//    taos_free_result(pres);
+//  }
+//
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, show_table_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "show tables");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to show tables, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//  }
+//
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "show abc1.tables");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to show tables, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//  }
+//
+//  TAOS_ROW    pRow = NULL;
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  int32_t count = 0;
+//  char str[512] = {0};
+//
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%d: %s\n", ++count, str);
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, drop_stable_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != nullptr);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in creating db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "use abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in using db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "drop stable st1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to drop stable, reason:%s\n", taos_errstr(pRes));
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, generated_request_id_test) {
+//  SHashObj* phash = taosHashInit(10000, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_ENTRY_LOCK);
+//
+//  for (int32_t i = 0; i < 50000; ++i) {
+//    uint64_t v = generateRequestId();
+//    void*    result = taosHashGet(phash, &v, sizeof(v));
+//    if (result != nullptr) {
+//      printf("0x%lx, index:%d\n", v, i);
+//    }
+//    assert(result == nullptr);
+//    taosHashPut(phash, &v, sizeof(v), NULL, 0);
+//  }
+//
+//  taosHashCleanup(phash);
+//}
+//
+//TEST(testCase, insert_test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  ASSERT_NE(pConn, nullptr);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "insert into t_2 values(now, 1)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create into table t_2, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    ASSERT_TRUE(false);
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//#if 0
+//TEST(testCase, create_topic_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in use db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  //taos_free_result(pRes);
+//
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  ASSERT_TRUE(pFields == nullptr);
+//
+//  int32_t numOfFields = taos_num_fields(pRes);
+//  ASSERT_EQ(numOfFields, 0);
+//
+//  taos_free_result(pRes);
+//
+//  char* sql = "select * from tu";
+//  pRes = taos_create_topic(pConn, "test_topic_1", sql, strlen(sql));
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//
+//TEST(testCase, tmq_subscribe_Test) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  assert(pConn != NULL);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("error in use db, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  tmq_conf_t* conf = tmq_conf_new();
+//  tmq_conf_set(conf, "group.id", "tg1");
+//  tmq_t* tmq = taos_consumer_new(pConn, conf, NULL, 0);
+//
+//  tmq_list_t* topic_list = tmq_list_new();
+//  tmq_list_append(topic_list, "test_topic_1");
+//  tmq_subscribe(tmq, topic_list);
+//
+//  while (1) {
+//    tmq_message_t* msg = tmq_consume_poll(tmq, 0);
+//    printf("get msg\n");
+//    //if (msg == NULL) break;
+//  }
+//}
+//#endif
+//
+//TEST(testCase, tmq_consume_Test) {
+//}
+//
+//TEST(testCase, tmq_commit_TEST) {
+//}
+//
+//TEST(testCase, projection_query_tables) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  ASSERT_NE(pConn, nullptr);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create stable st1 (ts timestamp, k int) tags(a int)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "create table tu using st1 tags(1)");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
+//  }
+//  taos_free_result(pRes);
+//
+//  for(int32_t i = 0; i < 100000; ++i) {
+//    char sql[512] = {0};
+//    sprintf(sql, "insert into tu values(now+%da, %d)", i, i);
+//    TAOS_RES* p = taos_query(pConn, sql);
+//    if (taos_errno(p) != 0) {
+//      printf("failed to insert data, reason:%s\n", taos_errstr(p));
+//    }
+//
+//    taos_free_result(p);
+//  }
+//
+//  pRes = taos_query(pConn, "select * from tu");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    ASSERT_TRUE(false);
+//  }
+//
+//  TAOS_ROW    pRow = NULL;
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  char str[512] = {0};
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%s\n", str);
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
+//
+//TEST(testCase, projection_query_stables) {
+//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+//  ASSERT_NE(pConn, nullptr);
+//
+//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+//  taos_free_result(pRes);
+//
+//  pRes = taos_query(pConn, "select ts from st1");
+//  if (taos_errno(pRes) != 0) {
+//    printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
+//    taos_free_result(pRes);
+//    ASSERT_TRUE(false);
+//  }
+//
+//  TAOS_ROW    pRow = NULL;
+//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+//  int32_t     numOfFields = taos_num_fields(pRes);
+//
+//  char str[512] = {0};
+//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+//    printf("%s\n", str);
+//  }
+//
+//  taos_free_result(pRes);
+//  taos_close(pConn);
+//}
 
 TEST(testCase, agg_query_tables) {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
@@ -712,7 +712,7 @@ TEST(testCase, agg_query_tables) {
   }
   taos_free_result(pRes);
 
-  pRes = taos_query(pConn, "select count(*) from tu");
+  pRes = taos_query(pConn, "select count(*) from t_x_19");
   if (taos_errno(pRes) != 0) {
     printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
     taos_free_result(pRes);
diff --git a/source/dnode/mgmt/impl/src/dndMgmt.c b/source/dnode/mgmt/impl/src/dndMgmt.c
index df886109115d22343c87f4895645a11687b15f3b..0674d719b9cb241bac8eea607f111f34832fd983 100644
--- a/source/dnode/mgmt/impl/src/dndMgmt.c
+++ b/source/dnode/mgmt/impl/src/dndMgmt.c
@@ -398,7 +398,7 @@ void dndSendStatusReq(SDnode *pDnode) {
 static void dndUpdateDnodeCfg(SDnode *pDnode, SDnodeCfg *pCfg) {
   SDnodeMgmt *pMgmt = &pDnode->dmgmt;
   if (pMgmt->dnodeId == 0) {
-    dInfo("set dnodeId:%d clusterId:%" PRId64, pCfg->dnodeId, pCfg->clusterId);
+    dInfo("set dnodeId:%d clusterId:0x%" PRId64, pCfg->dnodeId, pCfg->clusterId);
     taosWLockLatch(&pMgmt->latch);
     pMgmt->dnodeId = pCfg->dnodeId;
     pMgmt->clusterId = pCfg->clusterId;
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index ce3738b17dcf77ca2138ead62954748ffcf60192..836b17a86818afeded386c8bf5401d6d545092f3 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -5896,7 +5896,7 @@ static SSDataBlock* doAggregate(void* param, bool* newgroup) {
   finalizeQueryResult(pOperator, pInfo->pCtx, &pInfo->resultRowInfo, pInfo->rowCellInfoOffset);
   pInfo->pRes->info.rows = getNumOfResult(pInfo->pCtx, pOperator->numOfOutput);
 
-  return pInfo->pRes;
+  return (pInfo->pRes->info.rows != 0)? pInfo->pRes:NULL;
 }
 
 static SSDataBlock* doSTableAggregate(void* param, bool* newgroup) {
@@ -8825,14 +8825,14 @@ void* freeColumnInfo(SColumnInfo* pColumnInfo, int32_t numOfCols) {
 }
 
 void doDestroyTask(SExecTaskInfo *pTaskInfo) {
+  qDebug("%s execTask is freed", GET_TASKID(pTaskInfo));
+
   doDestroyTableQueryInfo(&pTaskInfo->tableqinfoGroupInfo);
 //  taosArrayDestroy(pTaskInfo->summary.queryProfEvents);
 //  taosHashCleanup(pTaskInfo->summary.operatorProfResults);
 
   tfree(pTaskInfo->sql);
   tfree(pTaskInfo->id.str);
-  qDebug("%s execTask is freed", GET_TASKID(pTaskInfo));
-
   tfree(pTaskInfo);
 }
 
diff --git a/source/libs/qworker/src/qworker.c b/source/libs/qworker/src/qworker.c
index 8fc8a783c4f72c6a15bb8c14b49cd061ef970743..9b9b6a73ca1d3c246b1c0ea77de7d3454cf7adcc 100644
--- a/source/libs/qworker/src/qworker.c
+++ b/source/libs/qworker/src/qworker.c
@@ -1100,8 +1100,6 @@ int32_t qwProcessCQuery(QW_FPARAMS_DEF, SQWMsg *qwMsg) {
     atomic_store_8(&ctx->queryInQueue, 0);
     atomic_store_8(&ctx->queryContinue, 0);
 
-    DataSinkHandle  sinkHandle = ctx->sinkHandle;
-
     QW_ERR_JRET(qwExecTask(QW_FPARAMS(), ctx, &queryEnd));
 
     if (QW_IS_EVENT_RECEIVED(ctx, QW_EVENT_FETCH)) {