From 9aa5ee6ccfe37fe0b9bba7b86b2a6c0d5df31385 Mon Sep 17 00:00:00 2001
From: Minglei Jin <mljin@taosdata.com>
Date: Mon, 4 Jul 2022 16:58:42 +0800
Subject: [PATCH] tsdbCache: fix row duplication

---
 source/dnode/vnode/src/tsdb/tsdbCache.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index 921702d866..c9554b5688 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -139,7 +139,11 @@ int32_t tsdbCacheInsertLastrow(SLRUCache *pCache, STsdb *pTsdb, tb_uid_t uid, ST
       } else {
         taosLRUCacheRelease(pCache, h, true);
         // tsdbCacheDeleteLastrow(pCache, uid, TSKEY_MAX);
-
+        if (dup) {
+          cacheRow = tdRowDup(row);
+        } else {
+          cacheRow = row;
+        }
         _taos_lru_deleter_t deleter = deleteTableCacheLastrow;
         LRUStatus status = taosLRUCacheInsert(pCache, key, keyLen, cacheRow, TD_ROW_LEN(cacheRow), deleter, NULL,
                                               TAOS_LRU_PRIORITY_LOW);