From 21feb859159cc91f288c8733c1c060f636764289 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Mon, 25 Apr 2022 12:42:26 +0800
Subject: [PATCH] fix(query): fix timezone function output string incomplete

TD-15116
---
 source/libs/scalar/src/sclfunc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index 08b58cf810..28514c3605 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -1265,8 +1265,11 @@ int32_t todayFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOut
 }
 
 int32_t timezoneFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
+  char output[TD_TIMEZONE_LEN + VARSTR_HEADER_SIZE] = {0};
+  memcpy(varDataVal(output), tsTimezoneStr, TD_TIMEZONE_LEN);
+  varDataSetLen(output, strlen(tsTimezoneStr));
   for (int32_t i = 0; i < pInput->numOfRows; ++i) {
-    colDataAppend(pOutput->columnData, i, tsTimezoneStr, false);
+    colDataAppend(pOutput->columnData, i, output, false);
   }
   pOutput->numOfRows = pInput->numOfRows;
   return TSDB_CODE_SUCCESS;