From e389583334a47c65b58b74c056dc514ba973a56f Mon Sep 17 00:00:00 2001
From: Minglei Jin <mljin@taosdata.com>
Date: Thu, 19 Dec 2024 15:20:25 +0800
Subject: [PATCH] fix num ptr crash

---
 source/dnode/vnode/src/tsdb/tsdbCache.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index 87cde3cf0f..2047b68101 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -2638,12 +2638,13 @@ int32_t tsdbCacheDel(STsdb *pTsdb, tb_uid_t suid, tb_uid_t uid, TSKEY sKey, TSKE
   int32_t   code = 0, lino = 0;
   STSchema *pTSchema = NULL;
   int       sver = -1;
-  int       numCols = pTSchema->numOfCols;
   int       numKeys = 0;
   SArray   *remainCols = NULL;
 
   TAOS_CHECK_RETURN(metaGetTbTSchemaEx(pTsdb->pVnode->pMeta, suid, uid, sver, &pTSchema));
 
+  int numCols = pTSchema->numOfCols;
+
   (void)taosThreadMutexLock(&pTsdb->lruMutex);
 
   for (int i = 0; i < numCols; ++i) {