From 7b7fc4df86e736068a37f89bcb6ff539cb032fbc Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Wed, 18 Nov 2020 21:41:15 +0800
Subject: [PATCH] [TD-225]

---
 src/query/src/qExecutor.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 869f57f117..984061e70f 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -5336,8 +5336,11 @@ static char *getArithemicInputSrc(void *param, const char *name, int32_t colId)
 }
 
 static void doSecondaryArithmeticProcess(SQuery* pQuery) {
-  SArithmeticSupport arithSup = {0};
+  if (pQuery->numOfExpr2 == 0) {
+    return;
+  }
 
+  SArithmeticSupport arithSup = {0};
   tFilePage **data = calloc(pQuery->numOfExpr2, POINTER_BYTES);
   for (int32_t i = 0; i < pQuery->numOfExpr2; ++i) {
     int32_t bytes = pQuery->pExpr2[i].bytes;
-- 
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