diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index c5ec2c270d41c724066fb25082bdc0e92d85ea99..fdcfcb02de470a23afd552be81292c31572fcc55 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -114,7 +114,7 @@ int tsParseTime(SStrToken *pToken, int64_t *time, char **next, char *error, int1
   }
 
   for (int k = pToken->n; pToken->z[k] != '\0'; k++) {
-    if (pToken->z[k] == ' ' || pToken->z[k] == '\t') continue;
+    if (isspace(pToken->z[k])) continue;
     if (pToken->z[k] == ',') {
       *next = pTokenEnd;
       *time = useconds;
@@ -1589,7 +1589,8 @@ int tsParseSql(SSqlObj *pSql, bool initial) {
 
     ret = tsParseInsertSql(pSql);
     if (pSql->parseRetry < 1 && (ret == TSDB_CODE_TSC_SQL_SYNTAX_ERROR || ret == TSDB_CODE_TSC_INVALID_OPERATION)) {
-      tscDebug("0x%"PRIx64 " parse insert sql statement failed, code:%s, clear meta cache and retry ", pSql->self, tstrerror(ret));
+      SInsertStatementParam* pInsertParam = &pCmd->insertParam;
+      tscDebug("0x%"PRIx64 " parse insert sql statement failed, code:%s, msg:%s, clear meta cache and retry ", pSql->self, pInsertParam->msg, tstrerror(ret));
 
       tscResetSqlCmd(pCmd, true);
       pSql->parseRetry++;
diff --git a/src/plugins/http/src/httpParser.c b/src/plugins/http/src/httpParser.c
index 02f21037b8592cc847f02f1b2fbe3c01acd508d8..7066f19769754e78dffeed6a40b672584c0310f1 100644
--- a/src/plugins/http/src/httpParser.c
+++ b/src/plugins/http/src/httpParser.c
@@ -663,7 +663,7 @@ static int32_t httpParserOnTarget(HttpParser *parser, HTTP_PARSER_STATE state, c
   HttpContext *pContext = parser->pContext;
   int32_t      ok = 0;
   do {
-    if (!isspace(c) && c != '\r' && c != '\n') {
+    if (!isspace(c)) {
       if (httpAppendString(&parser->str, &c, 1)) {
         httpError("context:%p, fd:%d, parser state:%d, char:[%c]%02x, oom", pContext, pContext->fd, state, c, c);
         ok = -1;
diff --git a/src/util/src/ttokenizer.c b/src/util/src/ttokenizer.c
index c4d05b2d5a851ee4c2a8232095dd6ea5567213ab..1efab138ef5b5f8e3831c76f8b47fafb3f6b5527 100644
--- a/src/util/src/ttokenizer.c
+++ b/src/util/src/ttokenizer.c
@@ -608,7 +608,7 @@ SStrToken tStrGetToken(char* str, int32_t* i, bool isPrevOptr) {
 
     int32_t numOfComma = 0;
     char t = str[*i];
-    while (t == ' ' || t == '\n' || t == '\r' || t == '\t' || t == '\f' || t == ',') {
+    while (isspace(t) || t == ',') {
       if (t == ',' && (++numOfComma > 1)) {  // comma only allowed once
         t0.n = 0;
         return t0;
diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index ccc7953580ca81723eb642557632b813a10762b8..7c916c0a3ad1c8140193cae5852ec0456309b989 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -28,6 +28,7 @@ python3 ./test.py -f insert/insertDynamicColBeforeVal.py
 python3 ./test.py -f insert/in_function.py
 python3 ./test.py -f insert/modify_column.py
 python3 ./test.py -f insert/line_insert.py
+python3 ./test.py -f insert/specialSql.py
 
 #table
 python3 ./test.py -f table/alter_wal0.py
diff --git a/tests/pytest/insert/specialSql.py b/tests/pytest/insert/specialSql.py
new file mode 100644
index 0000000000000000000000000000000000000000..908c14ead9d9d600221ecb662d226495e370e582
--- /dev/null
+++ b/tests/pytest/insert/specialSql.py
@@ -0,0 +1,48 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+
+        tdLog.info("=============== step1")
+        tdSql.execute(
+            'create stable properties_asch5snuykd (ts timestamp, create_time timestamp, number_value double, value int) tags (device_id nchar(8), property nchar(8))'
+        )
+        tdSql.execute(
+            "insert into\n\t\t  \n\t\t\tdb.properties_b86ca7d11556e0fdd43fd12ac08651f9 using db.properties_asch5snuykd\n\t\t\t(\n\t\t\t  \n\t\t\t\tdevice_id\n\t\t\t , \n\t\t\t\tproperty\n\t\t\t \n\t\t\t)\n\t\t\ttags\n\t\t\t(\n\t\t\t  \n\t\t\t\t'dev1'\n\t\t\t , \n\t\t\t\t'pres'\n\t\t\t \n\t\t\t)\n\t\t\t(\n\t\t\t  \n\t\t\t\tts\n\t\t\t , \n\t\t\t\tcreate_time\n\t\t\t , \n\t\t\t\tnumber_value\n\t\t\t , \n\t\t\t\tvalue\n\t\t\t \n\t\t\t)\n\t\t\tvalues\n\t\t\t  \n\t\t\t\t(\n\t\t\t\t  \n\t\t\t\t\t1629443494659\n\t\t\t\t , \n\t\t\t\t\t1629443494660\n\t\t\t\t , \n\t\t\t\t\t-1000.0\n\t\t\t\t , \n\t\t\t\t\t'-1000'\n\t\t\t\t \n\t\t\t\t)\n;"
+        )
+
+        tdSql.query(
+            "select * from db.properties_b86ca7d11556e0fdd43fd12ac08651f9")
+        tdSql.checkRows(1)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())