diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 3882be56dce445f8888e63176a48377fe6ef7156..923d95c88827cef69fff2979003a31fafaa2d206 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -468,11 +468,7 @@ int tsParseOneRow(char **str, STableDataBlocks *pDataBlocks, SSqlCmd *pCmd, int1
       int32_t j = 0;
       for (uint32_t k = 1; k < sToken.n - 1; ++k) {
         if (sToken.z[k] == '\\' || (sToken.z[k] == delim && sToken.z[k + 1] == delim)) {
-          if (sToken.z[k] == '\\') {
-            tmpTokenBuf[j] = GET_ESCAPE_CHAR(sToken.z[k+1]);
-          } else {
             tmpTokenBuf[j] = sToken.z[k + 1];
-          }
 
           cnt++;
           j++;
diff --git a/src/util/src/ttokenizer.c b/src/util/src/ttokenizer.c
index 794420d55b780649e314ae425eddf9c305980415..54da75cae007a909a4f28a5f97b7d66bdcb114be 100644
--- a/src/util/src/ttokenizer.c
+++ b/src/util/src/ttokenizer.c
@@ -415,7 +415,7 @@ uint32_t tGetToken(char* z, uint32_t* tokenId) {
       int  delim = z[0];
       bool strEnd = false;
       for (i = 1; z[i]; i++) {
-        if (z[i] == '\\') { 
+        if (z[i] == '\\') {   // ignore the escaped character that follows this backslash
           i++;
           continue;
         }
diff --git a/tests/pytest/insert/nchar-unicode.py b/tests/pytest/insert/nchar-unicode.py
index c417a6bca20a47a2035fbc1c75854e43147e34e3..4afcf5b760baab67111beb83c42d6807a65bb830 100644
--- a/tests/pytest/insert/nchar-unicode.py
+++ b/tests/pytest/insert/nchar-unicode.py
@@ -57,12 +57,15 @@ class TDTestCase:
 
         # https://www.ltg.ed.ac.uk/~richard/unicode-sample.html
         # Basic Latin
-        data = r'! # $ % & ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~'
+        data = r'! # $ % & ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \\ ] ^ _ ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~'
         tdLog.info("insert Basic Latin %d length data: %s" % (len(data), data))
         tdSql.execute("insert into tb values (now, '%s')" % data)
         tdSql.query("select * from tb")
         tdSql.checkRows(3)
+
+        data = data.replace('\\\\', '\\')
         tdSql.checkData(2, 1, data)
+        # tdSql.execute("insert into tb values(now, 'abc')")
 
         # Latin-1 Supplement
         data = ' ¡ ¢ £ ¤ ¥ ¦ § ¨ © ª « ¬ ­ ® ¯ ° ± ² ³ ´ µ ¶ · ¸ ¹ º » ¼ ½ ¾ ¿ À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß à á â ã ä å æ ç è é ê ë ì í î ï ð ñ ò ó ô õ ö ÷ ø ù ú û ü ý þ ÿ'