From 70f869ce33f30eeeb446219f2979204f9c968c5d Mon Sep 17 00:00:00 2001
From: slzhou <shenglian_zhou@163.com>
Date: Tue, 23 Jan 2024 17:05:03 +0800
Subject: [PATCH] fix: memory error when limit 0

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

diff --git a/source/libs/executor/src/tsort.c b/source/libs/executor/src/tsort.c
index 38aac39d8e..64f47baca9 100644
--- a/source/libs/executor/src/tsort.c
+++ b/source/libs/executor/src/tsort.c
@@ -1100,7 +1100,7 @@ static int32_t createBlocksMergeSortInitialSources(SSortHandle* pHandle) {
 
     int64_t p = taosGetTimestampUs();
     bool bExtractedBlock = false;
-    if (pBlk != NULL && pHandle->mergeLimit != -1) {
+    if (pBlk != NULL && pHandle->mergeLimit > 0) {
       pBlk = getRowsBlockWithinMergeLimit(pHandle, mTableNumRows, pBlk, &bExtractedBlock);
     }