From 8035d02d9240ef3505361b66a5cbecc248bd4933 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Fri, 27 May 2022 15:07:12 +0800
Subject: [PATCH] fix(queyr): fix tail function parameter restriction

TD-16035
---
 source/libs/function/src/builtins.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 7526722c7c..9efe7d407a 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -616,8 +616,10 @@ static int32_t translateTail(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
 
     SValueNode* pValue = (SValueNode*)pParamNode;
 
-    if (pValue->datum.i < ((i > 1) ? 0 : 1) || pValue->datum.i > 1000) {
-      return invaildFuncParaValueErrMsg(pErrBuf, len, pFunc->functionName);
+    if (pValue->datum.i < ((i > 1) ? 0 : 1) || pValue->datum.i > 100) {
+      return buildFuncErrMsg(pErrBuf, len, TSDB_CODE_FUNC_FUNTION_ERROR,
+                            "TAIL function second parameter should be in range [1, 100], "
+                            "third parameter should be in range [0, 100]");
     }
 
     pValue->notReserved = true;