diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 92b4ee752f2f7df0024f21455e7b747575a09447..1a589b25b93a16714744b988815c4934bfcd18c0 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -632,7 +632,6 @@ TsdbQueryHandleT tsdbQueryLastRow(STsdbRepo *tsdb, STsdbQueryCond *pCond, STable
   if (pQueryHandle == NULL) {
     return NULL;
   }
-  pQueryHandle->pTableCheckInfo = NULL;
   lazyLoadCacheLast(pQueryHandle);
 
   int32_t code = checkForCachedLastRow(pQueryHandle, groupList);