diff --git a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
index 98e4bf141b4f144a6e3b4d622713b3222e0a7daf..2d12d57fbda9a01b7041b90c9823d56f40c6154d 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
@@ -44,7 +44,7 @@ static void saveOneRow(STSRow* pRow, SSDataBlock* pBlock, SLastrowReader* pReade
       tTSRowGetVal(pRow, pReader->pSchema, slotIds[i], &colVal);
 
       if (IS_VAR_DATA_TYPE(colVal.type)) {
-        if (colVal.isNull) {
+        if (colVal.isNull || colVal.isNone) {
           colDataAppendNULL(pColInfoData, numOfRows);
         } else {
           varDataSetLen(pReader->transferBuf[i], colVal.value.nData);
@@ -52,7 +52,7 @@ static void saveOneRow(STSRow* pRow, SSDataBlock* pBlock, SLastrowReader* pReade
           colDataAppend(pColInfoData, numOfRows, pReader->transferBuf[i], false);
         }
       } else {
-        colDataAppend(pColInfoData, numOfRows, (const char*)&colVal.value, colVal.isNull);
+        colDataAppend(pColInfoData, numOfRows, (const char*)&colVal.value, colVal.isNull || colVal.isNone);
       }
     }
   }
@@ -130,6 +130,7 @@ int32_t tsdbRetrieveLastRow(void* pReader, SSDataBlock* pResBlock, const int32_t
       STableKeyInfo* pKeyInfo = taosArrayGet(pr->pTableList, i);
 
       int32_t code = tsdbCacheGetLastrowH(lruCache, pKeyInfo->uid, pr->pVnode->pTsdb, &h);
+      // int32_t code = tsdbCacheGetLastH(lruCache, pKeyInfo->uid, pr->pVnode->pTsdb, &h);
       if (code != TSDB_CODE_SUCCESS) {
         return code;
       }
@@ -158,6 +159,7 @@ int32_t tsdbRetrieveLastRow(void* pReader, SSDataBlock* pResBlock, const int32_t
       STableKeyInfo* pKeyInfo = taosArrayGet(pr->pTableList, i);
 
       int32_t code = tsdbCacheGetLastrowH(lruCache, pKeyInfo->uid, pr->pVnode->pTsdb, &h);
+      // int32_t code = tsdbCacheGetLastH(lruCache, pKeyInfo->uid, pr->pVnode->pTsdb, &h);
       if (code != TSDB_CODE_SUCCESS) {
         return code;
       }
diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit.c b/source/dnode/vnode/src/tsdb/tsdbCommit.c
index f8a6efbb1f8ac7fb3fa1de60467394c85c3b24d9..385850adc2e482b966ad9697592707ccb7278788 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit.c
@@ -637,7 +637,8 @@ static int32_t tsdbMergeAsSubBlock(SCommitter *pCommitter, STbDataIter *pIter, S
     tsdbTbDataIterNext(pIter);
     pRow = tsdbTbDataIterGet(pIter);
     if (pRow) {
-      int32_t c = tBlockCmprFn(&(SBlock){}, pBlock);
+      TSDBKEY key = TSDBROW_KEY(pRow);
+      int32_t c = tBlockCmprFn(&(SBlock){.minKey = key, .maxKey = key}, pBlock);
 
       if (c == 0) {
         code =
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index bb377b5aad841543dc6f333fede791c5e79704ff..2460c5090f420b4312a3902303513d387c01c6d8 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -705,7 +705,7 @@ static void doCopyColVal(SColumnInfoData* pColInfoData, int32_t rowIndex, int32_
       colDataAppend(pColInfoData, rowIndex, pSup->buildBuf[colIndex], false);
     }
   } else {
-    colDataAppend(pColInfoData, rowIndex, (const char*)&pColVal->value, pColVal->isNull);
+    colDataAppend(pColInfoData, rowIndex, (const char*)&pColVal->value, pColVal->isNull || pColVal->isNone);
   }
 }