diff --git a/tests/examples/c/apitest.c b/tests/examples/c/apitest.c
index 03123afb3584ea94417c88e55edd9f8e232b0fe9..c886c6d2fe332380e9f519bfc1133d3d5b4106fa 100644
--- a/tests/examples/c/apitest.c
+++ b/tests/examples/c/apitest.c
@@ -1090,9 +1090,10 @@ void verify_telnet_insert(TAOS* taos) {
   //bigint
   char* lines2_3[] = {
       "stb2_3 1626006833651ms -9223372036854775807i64 host=\"host0\"",
-      "stb2_3 1626006833652ms 9223372036854775807i64 host=\"host0\""
+      "stb2_3 1626006833652ms 9223372036854775807i64 host=\"host0\"",
+      "stb2_3 1626006833662ms 9223372036854775807 host=\"host0\""
   };
-  code = taos_insert_telnet_lines(taos, lines2_3, 2);
+  code = taos_insert_telnet_lines(taos, lines2_3, 3);
   if (code) {
     printf("lines2_3 code: %d, %s.\n", code, tstrerror(code));
   }
@@ -1107,11 +1108,10 @@ void verify_telnet_insert(TAOS* taos) {
       "stb2_4 1626006833660ms -3.4e10f32 host=\"host0\"",
       "stb2_4 1626006833670ms 3.4E+2f32 host=\"host0\"",
       "stb2_4 1626006833680ms -3.4e-2f32 host=\"host0\"",
-      "stb2_4 1626006833690ms 3.15 host=\"host0\"",
       "stb2_4 1626006833700ms 3.4E38f32 host=\"host0\"",
       "stb2_4 1626006833710ms -3.4E38f32 host=\"host0\""
   };
-  code = taos_insert_telnet_lines(taos, lines2_4, 11);
+  code = taos_insert_telnet_lines(taos, lines2_4, 10);
   if (code) {
     printf("lines2_4 code: %d, %s.\n", code, tstrerror(code));
   }
@@ -1127,9 +1127,10 @@ void verify_telnet_insert(TAOS* taos) {
       "stb2_5 1626006833670ms 3.4E+2f64 host=\"host0\"",
       "stb2_5 1626006833680ms -3.4e-2f64 host=\"host0\"",
       "stb2_5 1626006833690ms 1.7E308f64 host=\"host0\"",
-      "stb2_5 1626006833700ms -1.7E308f64 host=\"host0\""
+      "stb2_5 1626006833700ms -1.7E308f64 host=\"host0\"",
+      "stb2_5 1626006833710ms 3.15 host=\"host0\""
   };
-  code = taos_insert_telnet_lines(taos, lines2_5, 10);
+  code = taos_insert_telnet_lines(taos, lines2_5, 11);
   if (code) {
     printf("lines2_5 code: %d, %s.\n", code, tstrerror(code));
   }
@@ -1166,7 +1167,7 @@ void verify_telnet_insert(TAOS* taos) {
   //nchar
   char* lines2_8[] = {
       "stb2_8 1626006833610ms L\"nchar_val数值一\" host=\"host0\"",
-      "stb2_8 1626006833620ms L\"nchar_val数值二\" host=\"host0\"",
+      "stb2_8 1626006833620ms L\"nchar_val数值二\" host=\"host0\""
   };
   code = taos_insert_telnet_lines(taos, lines2_8, 2);
   if (code) {
diff --git a/tests/pytest/insert/insertJSONPayload.py b/tests/pytest/insert/insertJSONPayload.py
index 30f34446a93237f9b7b610efc9b1b5507ba09f4a..88b03cf3f526a380a97acf2a45b86a2c64b66069 100644
--- a/tests/pytest/insert/insertJSONPayload.py
+++ b/tests/pytest/insert/insertJSONPayload.py
@@ -31,6 +31,27 @@ class TDTestCase:
 
 
         ### Default format ###
+        ### metric ###
+        print("============= step0 : test metric  ================")
+        payload = '''
+        {
+	    "metric":	".stb.0.",
+	    "timestamp":	1626006833610123,
+	    "value":	10,
+	    "tags":	{
+		"t1":	true,
+		"t2":	false,
+		"t3":	10,
+		"t4":	"123_abc_.!@#$%^&*:;,./?|+-=()[]{}<>"
+	    }
+        }
+        '''
+        code = self._conn.insert_json_payload(payload)
+        print("insert_json_payload result {}".format(code))
+
+        tdSql.query("describe _stb_0_")
+        tdSql.checkRows(6)
+
         ### metric value ###
         print("============= step1 : test metric value types  ================")
         payload = '''
@@ -50,7 +71,7 @@ class TDTestCase:
         print("insert_json_payload result {}".format(code))
 
         tdSql.query("describe stb0_0")
-        tdSql.checkData(1, 1, "FLOAT")
+        tdSql.checkData(1, 1, "BIGINT")
 
         payload = '''
         {
@@ -107,12 +128,52 @@ class TDTestCase:
         print("insert_json_payload result {}".format(code))
 
         tdSql.query("describe stb0_3")
-        tdSql.checkData(1, 1, "NCHAR")
+        tdSql.checkData(1, 1, "BINARY")
 
-        ### timestamp 0 ###
         payload = '''
         {
 	    "metric":	"stb0_4",
+	    "timestamp":	1626006833610123,
+	    "value":	3.14,
+	    "tags":	{
+		"t1":	true,
+		"t2":	false,
+		"t3":	10,
+		"t4":	"123_abc_.!@#$%^&*:;,./?|+-=()[]{}<>"
+	    }
+        }
+        '''
+        code = self._conn.insert_json_payload(payload)
+        print("insert_json_payload result {}".format(code))
+
+        tdSql.query("describe stb0_4")
+        tdSql.checkData(1, 1, "DOUBLE")
+
+        payload = '''
+        {
+	    "metric":	"stb0_5",
+	    "timestamp":	1626006833610123,
+	    "value":	3.14E-2,
+	    "tags":	{
+		"t1":	true,
+		"t2":	false,
+		"t3":	10,
+		"t4":	"123_abc_.!@#$%^&*:;,./?|+-=()[]{}<>"
+	    }
+        }
+        '''
+        code = self._conn.insert_json_payload(payload)
+        print("insert_json_payload result {}".format(code))
+
+        tdSql.query("describe stb0_5")
+        tdSql.checkData(1, 1, "DOUBLE")
+
+
+        print("============= step2 : test timestamp  ================")
+        ### timestamp 0 ###
+        payload = '''
+        {
+	    "metric":	"stb0_6",
 	    "timestamp":	0,
 	    "value":	123,
 	    "tags":	{
@@ -127,14 +188,15 @@ class TDTestCase:
         print("insert_json_payload result {}".format(code))
 
 
+        print("============= step3 : test tags  ================")
         ### ID ###
         payload = '''
         {
-	    "metric":	"stb0_5",
+	    "metric":	"stb0_7",
 	    "timestamp":	0,
 	    "value":	123,
 	    "tags":	{
-		"ID":	"tb0_5",
+		"ID":	"tb0_7",
 		"t1":	true,
 		"iD":	"tb000",
 		"t2":	false,
@@ -147,10 +209,60 @@ class TDTestCase:
         code = self._conn.insert_json_payload(payload)
         print("insert_json_payload result {}".format(code))
 
-        tdSql.query("select tbname from stb0_5")
-        tdSql.checkData(0, 0, "tb0_5")
+        tdSql.query("select tbname from stb0_7")
+        tdSql.checkData(0, 0, "tb0_7")
+
+        ### Default tag numeric types ###
+        payload = '''
+        {
+	    "metric":	"stb0_8",
+	    "timestamp":	0,
+	    "value":	123,
+	    "tags":	{
+		"t1":	123
+	    }
+        }
+        '''
+        code = self._conn.insert_json_payload(payload)
+        print("insert_json_payload result {}".format(code))
+
+        tdSql.query("describe stb0_8")
+        tdSql.checkData(2, 1, "BIGINT")
+
+        payload = '''
+        {
+	    "metric":	"stb0_9",
+	    "timestamp":	0,
+	    "value":	123,
+	    "tags":	{
+		"t1":	123.00
+	    }
+        }
+        '''
+        code = self._conn.insert_json_payload(payload)
+        print("insert_json_payload result {}".format(code))
+
+        tdSql.query("describe stb0_9")
+        tdSql.checkData(2, 1, "DOUBLE")
+
+        payload = '''
+        {
+	    "metric":	"stb0_10",
+	    "timestamp":	0,
+	    "value":	123,
+	    "tags":	{
+		"t1":	123E-1
+	    }
+        }
+        '''
+        code = self._conn.insert_json_payload(payload)
+        print("insert_json_payload result {}".format(code))
+
+        tdSql.query("describe stb0_10")
+        tdSql.checkData(2, 1, "DOUBLE")
 
         ### Nested format ###
+        print("============= step4 : test nested format  ================")
         ### timestamp ###
         #seconds
         payload = '''
diff --git a/tests/pytest/insert/insertTelnetLines.py b/tests/pytest/insert/insertTelnetLines.py
index 4041b309a1007c1177f26d28b022f4e314dcf9ba..b47a74249bbad57ef758e886c513a7eea78b7634 100644
--- a/tests/pytest/insert/insertTelnetLines.py
+++ b/tests/pytest/insert/insertTelnetLines.py
@@ -36,13 +36,14 @@ class TDTestCase:
                         "stb0_0 1626006833639000000ns 4i8 host=\"host0\" interface=\"eth0\"",
                         "stb0_1 1626006833639000000ns 4i8 host=\"host0\" interface=\"eth0\"",
                         "stb0_2 1626006833639000000ns 4i8 host=\"host0\" interface=\"eth0\"",
+                        ".stb0.3. 1626006833639000000ns 4i8 host=\"host0\" interface=\"eth0\"",
                    ]
 
         code = self._conn.insert_telnet_lines(lines0)
         print("insert_telnet_lines result {}".format(code))
 
         tdSql.query("show stables")
-        tdSql.checkRows(3)
+        tdSql.checkRows(4)
 
         tdSql.query("describe stb0_0")
         tdSql.checkRows(4)
@@ -53,6 +54,9 @@ class TDTestCase:
         tdSql.query("describe stb0_2")
         tdSql.checkRows(4)
 
+        tdSql.query("describe _stb0_3_")
+        tdSql.checkRows(4)
+
         ### timestamp ###
         print("============= step2 : test timestamp  ================")
         lines1 = [
@@ -122,14 +126,15 @@ class TDTestCase:
         #bigint
         lines2_3 = [
                         "stb2_3 1626006833651ms -9223372036854775807i64 host=\"host0\"",
-                        "stb2_3 1626006833652ms 9223372036854775807i64 host=\"host0\""
+                        "stb2_3 1626006833652ms 9223372036854775807i64 host=\"host0\"",
+                        "stb2_3 1626006833662ms 9223372036854775807 host=\"host0\""
                      ]
 
         code = self._conn.insert_telnet_lines(lines2_3)
         print("insert_telnet_lines result {}".format(code))
 
         tdSql.query("select * from stb2_3")
-        tdSql.checkRows(2)
+        tdSql.checkRows(3)
 
         tdSql.query("describe stb2_3")
         tdSql.checkRows(3)
@@ -145,7 +150,6 @@ class TDTestCase:
                         "stb2_4 1626006833660ms -3.4e10f32 host=\"host0\"",
                         "stb2_4 1626006833670ms 3.4E+2f32 host=\"host0\"",
                         "stb2_4 1626006833680ms -3.4e-2f32 host=\"host0\"",
-                        "stb2_4 1626006833690ms 3.15 host=\"host0\"",
                         "stb2_4 1626006833700ms 3.4E38f32 host=\"host0\"",
                         "stb2_4 1626006833710ms -3.4E38f32 host=\"host0\""
                      ]
@@ -154,7 +158,7 @@ class TDTestCase:
         print("insert_telnet_lines result {}".format(code))
 
         tdSql.query("select * from stb2_4")
-        tdSql.checkRows(11)
+        tdSql.checkRows(10)
 
         tdSql.query("describe stb2_4")
         tdSql.checkRows(3)
@@ -171,14 +175,15 @@ class TDTestCase:
                         "stb2_5 1626006833670ms 3.4E+2f64 host=\"host0\"",
                         "stb2_5 1626006833680ms -3.4e-2f64 host=\"host0\"",
                         "stb2_5 1626006833690ms 1.7E308f64 host=\"host0\"",
-                        "stb2_5 1626006833700ms -1.7E308f64 host=\"host0\""
+                        "stb2_5 1626006833700ms -1.7E308f64 host=\"host0\"",
+                        "stb2_5 1626006833710ms 3.15 host=\"host0\""
                      ]
 
         code = self._conn.insert_telnet_lines(lines2_5)
         print("insert_telnet_lines result {}".format(code))
 
         tdSql.query("select * from stb2_5")
-        tdSql.checkRows(10)
+        tdSql.checkRows(11)
 
         tdSql.query("describe stb2_5")
         tdSql.checkRows(3)