From 55f1d464ab6e36e0abef0d031e79637c7c7375e5 Mon Sep 17 00:00:00 2001
From: yihaoDeng <cyang@taosdata.com>
Date: Tue, 22 Aug 2023 09:06:42 +0800
Subject: [PATCH] fix invalid cmp

---
 source/libs/stream/src/streamBackendRocksdb.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/source/libs/stream/src/streamBackendRocksdb.c b/source/libs/stream/src/streamBackendRocksdb.c
index 97e9154480..3cf1d34a7e 100644
--- a/source/libs/stream/src/streamBackendRocksdb.c
+++ b/source/libs/stream/src/streamBackendRocksdb.c
@@ -967,13 +967,8 @@ static rocksdb_iterator_t* streamStateIterCreate(SStreamState* pState, const cha
                                                  rocksdb_snapshot_t** snapshot, rocksdb_readoptions_t** readOpt);
 
 int defaultKeyComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen) {
-  int ret = 0;
-  // qError("alen: %d, blen:%d", (int)aLen, (int)bLen);
-  if (aLen < bLen) {
-    ret = memcmp(aBuf, bBuf, aLen);
-  } else {
-    ret = memcmp(aBuf, bBuf, bLen);
-  }
+  int len = aLen < bLen ? aLen : bLen;
+  int ret = memcmp(aBuf, bBuf, len);
   if (ret == 0) {
     if (aLen < bLen)
       return -1;