From b77eb38d42db46ff8f774bde69e04bb14dfb4cbb Mon Sep 17 00:00:00 2001
From: wpan <wpan@taosdata.com>
Date: Mon, 5 Jul 2021 13:27:00 +0800
Subject: [PATCH] fix dead loop issue

---
 src/client/src/tscParseInsert.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index bba9db86c5..40092c5860 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -954,6 +954,10 @@ static int32_t tscCheckIfCreateTable(char **sqlstr, SSqlObj *pSql, char** boundC
           break;
         }
 
+        if (sToken.n == 0 || sToken.type == TK_SEMI || index == 0) {
+          return tscSQLSyntaxErrMsg(pCmd->payload, "unexpected token", sql);
+        }
+
         sql += index;
         ++numOfColsAfterTags;
       }