From 24751e99fec9d7362c6519b589b2423bc48b051a Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Fri, 28 May 2021 05:10:47 +0800
Subject: [PATCH] [TD-2570]<fix>:

---
 src/client/src/tscSQLParser.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 314d9c4541..8f726e17b5 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -921,6 +921,9 @@ int32_t validateSessionNode(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SSqlNode * pS
   if (getColumnIndexByName(pCmd, col, pQueryInfo, &index) != TSDB_CODE_SUCCESS) {
     return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
   }
+  if (index.columnIndex != PRIMARYKEY_TIMESTAMP_COL_INDEX) {
+    return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
+  } 
 
   pQueryInfo->sessionWindow.primaryColId = PRIMARYKEY_TIMESTAMP_COL_INDEX;