From c25bc3f2ca84ea03867684bf2a62e44c170fced9 Mon Sep 17 00:00:00 2001
From: sima <simondominic9997@outlook.com>
Date: Thu, 11 Jul 2024 11:41:06 +0800
Subject: [PATCH] fix:[TS-5150] Fix stddev wrong result with null type.

---
 source/libs/function/src/builtinsimpl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index d5117e0eec..aab5a52776 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -1441,6 +1441,9 @@ _stddev_over:
 }
 
 static void stddevTransferInfo(SStddevRes* pInput, SStddevRes* pOutput) {
+  if (IS_NULL_TYPE(pInput->type)) {
+    return;
+  }
   pOutput->type = pInput->type;
   if (IS_SIGNED_NUMERIC_TYPE(pOutput->type)) {
     pOutput->quadraticISum += pInput->quadraticISum;