From a6900a7e961649a4e3e1f57502b204d8ac9a3d3b Mon Sep 17 00:00:00 2001
From: slzhou <slzhou@taosdata.com>
Date: Fri, 13 May 2022 21:02:32 +0800
Subject: [PATCH] fix : udf2 overflow for large int multiply large int

---
 source/libs/function/test/udf2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/libs/function/test/udf2.c b/source/libs/function/test/udf2.c
index ba39b09f56..6410af2a4b 100644
--- a/source/libs/function/test/udf2.c
+++ b/source/libs/function/test/udf2.c
@@ -44,7 +44,7 @@ int32_t udf2(SUdfDataBlock* block, SUdfInterBuf *interBuf, SUdfInterBuf *newInte
         case TSDB_DATA_TYPE_INT: {
           char* cell = udfColDataGetData(col, j);
           int32_t num = *(int32_t*)cell;
-          sumSquares += num * num;
+          sumSquares += (double)num * num;
           break;
         }
         case TSDB_DATA_TYPE_DOUBLE: {