From 26ceeac78998ed8ab4ce1a17fd666a63a2796075 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Sat, 28 May 2022 11:38:09 +0800
Subject: [PATCH] fix(query): restrict diff function ignore_negative types to
 integer

TD-16066
---
 source/libs/function/src/builtins.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 9563a81b7b..64e71cb503 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -700,6 +700,11 @@ static int32_t translateDiff(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
 
   //param1
   if (numOfParams == 2) {
+    uint8_t paraType = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 1))->resType.type;
+    if (!IS_INTEGER_TYPE(paraType)) {
+      return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+    }
+
     SNode* pParamNode1 = nodesListGetNode(pFunc->pParameterList, 1);
     if (QUERY_NODE_VALUE != nodeType(pParamNode1)) {
       return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
-- 
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