From 00937a7fc8efa9d5fb106bc2b642e027cf1bf449 Mon Sep 17 00:00:00 2001
From: 54liuyao <54liuyao@163.com>
Date: Thu, 17 Nov 2022 09:06:09 +0800
Subject: [PATCH] fix:[ASAN] src/builtinsimpl.c:1084:41: runtime error:
 division by zero

---
 source/libs/function/src/builtinsimpl.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index e57b9f9a34..23abf90b51 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -1083,7 +1083,10 @@ int32_t avgFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SAvgRes* pAvgRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
   int32_t  type = pAvgRes->type;
 
-  if (IS_SIGNED_NUMERIC_TYPE(type)) {
+  if (pAvgRes->count == 0) {
+    // [ASAN] runtime error: division by zero
+    GET_RES_INFO(pCtx)->numOfRes = 0;
+  } else if (IS_SIGNED_NUMERIC_TYPE(type)) {
     pAvgRes->result = pAvgRes->sum.isum / ((double)pAvgRes->count);
   } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) {
     pAvgRes->result = pAvgRes->sum.usum / ((double)pAvgRes->count);