diff --git a/source/dnode/vnode/src/tsdb/tsdbSnapshot.c b/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
index 310c3de5aa..caf3463fdc 100644
--- a/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
+++ b/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
@@ -1255,6 +1255,8 @@ static int32_t tsdbSnapWriteFileDataEnd(STsdbSnapWriter* pWriter) {
   code = tsdbSnapWriteTableData(pWriter, NULL);
   TSDB_CHECK_CODE(code, lino, _exit);
 
+  // TODO: ??
+
   if (pWriter->sData.nRow) {
     code = tsdbWriteSttBlock(pWriter->pDataFWriter, &pWriter->sData, pWriter->aSttBlk, pWriter->cmprAlg);
     TSDB_CHECK_CODE(code, lino, _exit);