From 2cc5b99b568cece34dd1afeaaaaecd3a10227c21 Mon Sep 17 00:00:00 2001
From: hjxilinx <hjxilinx@163.com>
Date: Sat, 29 Feb 2020 15:47:18 +0800
Subject: [PATCH] filter only sliding query.

---
 src/client/src/tscSQLParser.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 866569fdd6..5414d4a412 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -584,9 +584,14 @@ static bool isTopBottomQuery(SQueryInfo* pQueryInfo) {
 int32_t parseIntervalClause(SQueryInfo* pQueryInfo, SQuerySQL* pQuerySql) {
   const char* msg1 = "invalid query expression";
   const char* msg2 = "interval cannot be less than 10 ms";
-
+  const char* msg3 = "interval required";
+  
   SMeterMetaInfo* pMeterMetaInfo = tscGetMeterMetaInfoFromQueryInfo(pQueryInfo, 0);
 
+  if (pQuerySql->interval.type == 0 && pQuerySql->sliding.type != 0) {
+    return invalidSqlErrMsg(pQueryInfo->msg, msg3);
+  }
+  
   if (pQuerySql->interval.type == 0 || pQuerySql->interval.n == 0) {
     return TSDB_CODE_SUCCESS;
   }
-- 
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