From cb4a40a7cad03dbb573133eacedfe6a40a48df88 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Wed, 17 Aug 2022 11:43:14 +0800
Subject: [PATCH] fix error

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

diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 2f198f4490..c19b459cdb 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -199,7 +199,7 @@ static int32_t countTrailingSpaces(const SValueNode* pVal, bool isLtrim) {
 
   int32_t startPos = isLtrim ? 0 : len - 1;
   int32_t step = isLtrim ? 1 : -1;
-  for (int32_t i = startPos; i < len || i >= 0; i + step) {
+  for (int32_t i = startPos; i < len || i >= 0; i += step) {
     if (!isspace(str[i])) {
       break;
     }
-- 
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