[TS-995]<fix>(query): validate pTableCheckInfo when querying last/last_row

src/tsdb/src/tsdbRead.c

@@ -632,6 +632,7 @@ TsdbQueryHandleT tsdbQueryLastRow(STsdbRepo *tsdb, STsdbQueryCond *pCond, STable
   if (pQueryHandle == NULL) {
     return NULL;
   }
+
   lazyLoadCacheLast(pQueryHandle);
 
   int32_t code = checkForCachedLastRow(pQueryHandle, groupList);