fix: memory rows issue

source/dnode/vnode/src/tsdb/tsdbMemTable.c

@@ -300,12 +300,16 @@ void tsdbMemTableCountRows(SMemTable *pMemTable, SHashObj*        pTableMap, int
   taosRLockLatch(&pMemTable->latch);
   for (int32_t i = 0; i < pMemTable->nBucket; ++i) {
     STbData *pTbData = pMemTable->aBucket[i];
-    
+    while (pTbData) {
       void* p = taosHashGet(pTableMap, &pTbData->uid, sizeof(pTbData->uid));
       if (p == NULL) {
+        pTbData = pTbData->next;
         continue;
       }
+      
       rowsNum += tsdbCountTbDataRows(pTbData);
+      pTbData = pTbData->next;
+    }
   }
   taosRUnLockLatch(&pMemTable->latch);
 }