diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index 001c947318fd6fb77e396b6294ef094158ad1edb..741301cab734cffd5e22699db69e1c702e4b258d 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -663,12 +663,12 @@ static bool smlParseNumber(SSmlKv *kvVal, SSmlMsgBuf *msg){
 static bool smlParseBool(SSmlKv *kvVal) {
   const char *pVal = kvVal->value;
   int32_t len = kvVal->length;
-  if ((len == 1) && pVal[0] == 't') {
+  if ((len == 1) && (pVal[0] == 't' || pVal[0] == 'T')) {
     kvVal->i = true;
     return true;
   }
 
-  if ((len == 1) && pVal[0] == 'f') {
+  if ((len == 1) && (pVal[0] == 'f' || pVal[0] == 'F')) {
     kvVal->i = false;
     return true;
   }
@@ -2344,7 +2344,7 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
     goto end;
   }
 
-  if(protocol == TSDB_SML_LINE_PROTOCOL && (precision < TSDB_SML_TIMESTAMP_HOURS || precision > TSDB_SML_TIMESTAMP_NANO_SECONDS)){
+  if(protocol == TSDB_SML_LINE_PROTOCOL && (precision < TSDB_SML_TIMESTAMP_NOT_CONFIGURED || precision > TSDB_SML_TIMESTAMP_NANO_SECONDS)){
     request->code = TSDB_CODE_SML_INVALID_PRECISION_TYPE;
     smlBuildInvalidDataMsg(&info->msgBuf, "precision invalidate for line protocol", NULL);
     goto end;
diff --git a/source/client/test/smlTest.cpp b/source/client/test/smlTest.cpp
index 1eb6909281b6c35b3294c731f7080686d2fe760d..37cb1989b31befaeb7f58e8264567f68fb81a72d 100644
--- a/source/client/test/smlTest.cpp
+++ b/source/client/test/smlTest.cpp
@@ -488,10 +488,10 @@ TEST(testCase, smlProcess_influx_Test) {
   TAOS *taos = taos_connect("localhost", "root", "taosdata", NULL, 0);
   ASSERT_NE(taos, nullptr);
 
-  TAOS_RES* pRes = taos_query(taos, "create database if not exists sml_db");
+  TAOS_RES* pRes = taos_query(taos, "create database if not exists inflx_db");
   taos_free_result(pRes);
 
-  pRes = taos_query(taos, "use sml_db");
+  pRes = taos_query(taos, "use inflx_db");
   taos_free_result(pRes);
 
   SRequestObj *request = (SRequestObj *)createRequest((STscObj*)taos, NULL, NULL, TSDB_SQL_INSERT);
@@ -501,33 +501,105 @@ TEST(testCase, smlProcess_influx_Test) {
   ASSERT_NE(info, nullptr);
 
   const char *sql[] = {
-    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 load_capacity=1500,fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,velocity=0,heading=221,grade=0 1451606400000000000",
-    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 load_capacity=1500,fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,velocity=0,heading=221,grade=0,fuel_consumption=25 1451607400000000000",
-    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 load_capacity=1500,fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,heading=221,grade=0,fuel_consumption=25 1451608400000000000",
-    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,velocity=0,heading=221,grade=0,fuel_consumption=25 1451609400000000000",
-    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 fuel_consumption=25,grade=0 1451619400000000000",
-    "readings,name=truck_1,fleet=South,driver=Albert,model=F-150,device_version=v1.5 load_capacity=2000,fuel_capacity=200,nominal_fuel_consumption=15,latitude=72.45258,longitude=68.83761,elevation=255,velocity=0,heading=181,grade=0,fuel_consumption=25 1451606400000000000",
-    "readings,name=truck_2,driver=Derek,model=F-150,device_version=v1.5 load_capacity=2000,fuel_capacity=200,nominal_fuel_consumption=15,latitude=24.5208,longitude=28.09377,elevation=428,velocity=0,heading=304,grade=0,fuel_consumption=25 1451606400000000000",
-    "readings,name=truck_2,fleet=North,driver=Derek,model=F-150 load_capacity=2000,fuel_capacity=200,nominal_fuel_consumption=15,latitude=24.5208,longitude=28.09377,elevation=428,velocity=0,heading=304,grade=0,fuel_consumption=25 1451609400000000000",
-    "readings,fleet=South,name=truck_0,driver=Trish,model=H-2,device_version=v2.3 fuel_consumption=25,grade=0 1451629400000000000",
-    "stable,t1=t1,t2=t2,t3=t3 c1=1,c2=2,c3=3,c4=4 1451629500000000000",
-    "stable,t2=t2,t1=t1,t3=t3 c1=1,c3=3,c4=4 1451629600000000000",
+    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 load_capacity=1500,fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,velocity=0,heading=221,grade=0 1451606401000000000",
+    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 load_capacity=1500,fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,velocity=0,heading=221,grade=0,fuel_consumption=25 1451607402000000000",
+    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 load_capacity=1500,fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,heading=221,grade=0,fuel_consumption=25 1451608403000000000",
+    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 fuel_capacity=150,nominal_fuel_consumption=12,latitude=52.31854,longitude=4.72037,elevation=124,velocity=0,heading=221,grade=0,fuel_consumption=25 1451609404000000000",
+    "readings,name=truck_0,fleet=South,driver=Trish,model=H-2,device_version=v2.3 fuel_consumption=25,grade=0 1451619405000000000",
+    "readings,name=truck_1,fleet=South,driver=Albert,model=F-150,device_version=v1.5 load_capacity=2000,fuel_capacity=200,nominal_fuel_consumption=15,latitude=72.45258,longitude=68.83761,elevation=255,velocity=0,heading=181,grade=0,fuel_consumption=25 145160640600000000",
+    "readings,name=truck_2,driver=Derek,model=F-150,device_version=v1.5 load_capacity=2000,fuel_capacity=200,nominal_fuel_consumption=15,latitude=24.5208,longitude=28.09377,elevation=428,velocity=0,heading=304,grade=0,fuel_consumption=25 1451606407000000000",
+    "readings,name=truck_2,fleet=North,driver=Derek,model=F-150 load_capacity=2000,fuel_capacity=200,nominal_fuel_consumption=15,latitude=24.5208,longitude=28.09377,elevation=428,velocity=0,heading=304,grade=0,fuel_consumption=25 1451609408000000000",
+    "readings,fleet=South,name=truck_0,driver=Trish,model=H-2,device_version=v2.3 fuel_consumption=25,grade=0 1451629409000000000",
+    "stable,t1=t1,t2=t2,t3=t3 c1=1,c2=2,c3=\"kk\",c4=4 1451629501000000000",
+    "stable,t2=t2,t1=t1,t3=t3 c1=1,c3=\"\",c4=4 1451629602000000000",
   };
   int ret = smlProcess(info, (char**)sql, sizeof(sql)/sizeof(sql[0]));
   ASSERT_EQ(ret, 0);
 
-  TAOS_RES *res = taos_query(taos, "select * from t_6885c584b98481584ee13dac399e173d");
+  // case 1
+  TAOS_RES *res = taos_query(taos, "select * from t_91e0b182be80332b5c530cbf872f760e");
   ASSERT_NE(res, nullptr);
   int fieldNum = taos_field_count(res);
-  //ASSERT_EQ(fieldNum, 5);
+  ASSERT_EQ(fieldNum, 11);
   printf("fieldNum:%d\n", fieldNum);
-  int rowNum = taos_affected_rows(res);
-  //ASSERT_EQ(rowNum, 2);
-  printf("rowNum:%d\n", rowNum);
-  for (int i = 0; i < rowNum; ++i) {
-    TAOS_ROW rows = taos_fetch_row(res);
+
+  TAOS_ROW row = NULL;
+  int32_t rowIndex = 0;
+  while((row = taos_fetch_row(res)) != NULL) {
+    int64_t ts = *(int64_t*)row[0];
+    double load_capacity = *(double*)row[1];
+    double fuel_capacity = *(double*)row[2];
+    double nominal_fuel_consumption = *(double*)row[3];
+    double latitude = *(double*)row[4];
+    double longitude = *(double*)row[5];
+    double elevation = *(double*)row[6];
+    double velocity = *(double*)row[7];
+    double heading = *(double*)row[8];
+    double grade = *(double*)row[9];
+    double fuel_consumption = *(double*)row[10];
+    if(rowIndex == 0){
+      ASSERT_EQ(ts, 1451606407000);
+      ASSERT_EQ(load_capacity, 2000);
+      ASSERT_EQ(fuel_capacity, 200);
+      ASSERT_EQ(nominal_fuel_consumption, 15);
+      ASSERT_EQ(latitude, 24.5208);
+      ASSERT_EQ(longitude, 28.09377);
+      ASSERT_EQ(elevation, 428);
+      ASSERT_EQ(velocity, 0);
+      ASSERT_EQ(heading, 304);
+      ASSERT_EQ(grade, 0);
+      ASSERT_EQ(fuel_consumption, 25);
+    }else{
+      ASSERT_FALSE(1);
+    }
+    rowIndex++;
+  }
+  taos_free_result(res);
+
+  // case 2
+  res = taos_query(taos, "select * from t_6885c584b98481584ee13dac399e173d");
+  ASSERT_NE(res, nullptr);
+  fieldNum = taos_field_count(res);
+  ASSERT_EQ(fieldNum, 5);
+  printf("fieldNum:%d\n", fieldNum);
+
+  rowIndex = 0;
+  while((row = taos_fetch_row(res)) != NULL) {
+    int *length = taos_fetch_lengths(res);
+
+    int64_t ts = *(int64_t*)row[0];
+    double c1 = *(double*)row[1];
+    double c4 = *(double*)row[4];
+    if(rowIndex == 0){
+      ASSERT_EQ(ts, 1451629501000);
+      ASSERT_EQ(c1, 1);
+      ASSERT_EQ(*(double*)row[2], 2);
+      ASSERT_EQ(length[3], 2);
+      ASSERT_EQ(memcmp(row[3], "kk", length[3]), 0);
+      ASSERT_EQ(c4, 4);
+    }else if(rowIndex == 1){
+      ASSERT_EQ(ts, 1451629602000);
+      ASSERT_EQ(c1, 1);
+      ASSERT_EQ(row[2], nullptr);
+      ASSERT_EQ(length[3], 0);
+      ASSERT_EQ(c4, 4);
+    }else{
+      ASSERT_FALSE(1);
+    }
+    rowIndex++;
   }
   taos_free_result(res);
+
+  // case 2
+  res = taos_query(taos, "show tables");
+  ASSERT_NE(res, nullptr);
+
+  row = taos_fetch_row(res);
+  int rowNum = taos_affected_rows(res);
+  ASSERT_EQ(rowNum, 5);
+  taos_free_result(res);
+
+
   destroyRequest(request);
   smlDestroyInfo(info);
 }
@@ -586,10 +658,10 @@ TEST(testCase, smlProcess_telnet_Test) {
   TAOS *taos = taos_connect("localhost", "root", "taosdata", NULL, 0);
   ASSERT_NE(taos, nullptr);
 
-  TAOS_RES* pRes = taos_query(taos, "create database if not exists sml_db");
+  TAOS_RES* pRes = taos_query(taos, "create database if not exists telnet_db");
   taos_free_result(pRes);
 
-  pRes = taos_query(taos, "use sml_db");
+  pRes = taos_query(taos, "use telnet_db");
   taos_free_result(pRes);
 
   SRequestObj *request = (SRequestObj *)createRequest((STscObj*)taos, NULL, NULL, TSDB_SQL_INSERT);
@@ -607,27 +679,31 @@ TEST(testCase, smlProcess_telnet_Test) {
   int ret = smlProcess(info, (char**)sql, sizeof(sql)/sizeof(sql[0]));
   ASSERT_EQ(ret, 0);
 
-//  TAOS_RES *res = taos_query(taos, "select * from t_8c30283b3c4131a071d1e16cf6d7094a");
-//  ASSERT_NE(res, nullptr);
-//  int fieldNum = taos_field_count(res);
-//  ASSERT_EQ(fieldNum, 2);
-//  int rowNum = taos_affected_rows(res);
-//  ASSERT_EQ(rowNum, 1);
-//  for (int i = 0; i < rowNum; ++i) {
-//   TAOS_ROW rows = taos_fetch_row(res);
-//  }
-//  taos_free_result(res);
-
-//  res = taos_query(taos, "select * from t_6931529054e5637ca92c78a1ad441961");
-//  ASSERT_NE(res, nullptr);
-//  fieldNum = taos_field_count(res);
-//  ASSERT_EQ(fieldNum, 2);
-//  rowNum = taos_affected_rows(res);
-//  ASSERT_EQ(rowNum, 2);
-//  for (int i = 0; i < rowNum; ++i) {
-//   TAOS_ROW rows = taos_fetch_row(res);
-//  }
-//  taos_free_result(res);
+  // case 1
+  TAOS_RES *res = taos_query(taos, "select * from t_8c30283b3c4131a071d1e16cf6d7094a");
+  ASSERT_NE(res, nullptr);
+  int fieldNum = taos_field_count(res);
+  ASSERT_EQ(fieldNum, 2);
+
+  TAOS_ROW row = taos_fetch_row(res);
+  int64_t ts = *(int64_t*)row[0];
+  double c1 = *(double*)row[1];
+  ASSERT_EQ(ts, 1479496100000);
+  ASSERT_EQ(c1, 42);
+
+  int rowNum = taos_affected_rows(res);
+  ASSERT_EQ(rowNum, 1);
+  taos_free_result(res);
+
+  // case 2
+  res = taos_query(taos, "show tables");
+  ASSERT_NE(res, nullptr);
+
+  row = taos_fetch_row(res);
+  rowNum = taos_affected_rows(res);
+  ASSERT_EQ(rowNum, 3);
+  taos_free_result(res);
+
   destroyRequest(request);
   smlDestroyInfo(info);
 }
@@ -636,10 +712,10 @@ TEST(testCase, smlProcess_json1_Test) {
   TAOS *taos = taos_connect("localhost", "root", "taosdata", NULL, 0);
   ASSERT_NE(taos, nullptr);
 
-  TAOS_RES *pRes = taos_query(taos, "create database if not exists sml_db");
+  TAOS_RES *pRes = taos_query(taos, "create database if not exists json_db");
   taos_free_result(pRes);
 
-  pRes = taos_query(taos, "use sml_db");
+  pRes = taos_query(taos, "use json_db");
   taos_free_result(pRes);
 
   SRequestObj *request = (SRequestObj *)createRequest((STscObj *)taos, NULL, NULL, TSDB_SQL_INSERT);
@@ -672,16 +748,31 @@ TEST(testCase, smlProcess_json1_Test) {
   int ret = smlProcess(info, (char **)(&sql), -1);
   ASSERT_EQ(ret, 0);
 
-//  TAOS_RES *res = taos_query(taos, "select * from t_cb27a7198d637b4f1c6464bd73f756a7");
-//  ASSERT_NE(res, nullptr);
-//  int fieldNum = taos_field_count(res);
-//  ASSERT_EQ(fieldNum, 2);
-  //   int rowNum = taos_affected_rows(res);
-  //   ASSERT_EQ(rowNum, 1);
-  //   for (int i = 0; i < rowNum; ++i) {
-  //     TAOS_ROW rows = taos_fetch_row(res);
-  //   }
-//  taos_free_result(res);
+  // case 1
+  TAOS_RES *res = taos_query(taos, "select * from t_cb27a7198d637b4f1c6464bd73f756a7");
+  ASSERT_NE(res, nullptr);
+  int fieldNum = taos_field_count(res);
+  ASSERT_EQ(fieldNum, 2);
+
+  TAOS_ROW row = taos_fetch_row(res);
+  int64_t ts = *(int64_t*)row[0];
+  double c1 = *(double*)row[1];
+  ASSERT_EQ(ts, 1346846400000);
+  ASSERT_EQ(c1, 18);
+
+  int rowNum = taos_affected_rows(res);
+  ASSERT_EQ(rowNum, 1);
+  taos_free_result(res);
+
+  // case 2
+  res = taos_query(taos, "show tables");
+  ASSERT_NE(res, nullptr);
+
+  row = taos_fetch_row(res);
+  rowNum = taos_affected_rows(res);
+  ASSERT_EQ(rowNum, 2);
+  taos_free_result(res);
+
   destroyRequest(request);
   smlDestroyInfo(info);
 }