From de2e62522aae1c07fe89c6014d1ebe07df2296e0 Mon Sep 17 00:00:00 2001
From: Minglei Jin <mljin@taosdata.com>
Date: Wed, 7 Aug 2024 09:17:16 +0800
Subject: [PATCH] fix(tdb/btree): null txn in btc

---
 source/libs/tdb/src/db/tdbBtree.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/libs/tdb/src/db/tdbBtree.c b/source/libs/tdb/src/db/tdbBtree.c
index c07f442c4a..e494d3926b 100644
--- a/source/libs/tdb/src/db/tdbBtree.c
+++ b/source/libs/tdb/src/db/tdbBtree.c
@@ -1660,12 +1660,14 @@ int tdbBtcOpen(SBTC *pBtc, SBTree *pBt, TXN *pTxn) {
   if (pTxn == NULL) {
     TXN *pTxn = tdbOsCalloc(1, sizeof(*pTxn));
     if (!pTxn) {
+      pBtc->pTxn = NULL;
       return terrno;
     }
 
     int32_t ret = tdbTxnOpen(pTxn, 0, tdbDefaultMalloc, tdbDefaultFree, NULL, 0);
     if (ret < 0) {
       tdbOsFree(pTxn);
+      pBtc->pTxn = NULL;
       return ret;
     }