diff --git a/source/dnode/vnode/src/tsdb/tsdbDataFileRW.c b/source/dnode/vnode/src/tsdb/tsdbDataFileRW.c
index 0a42d2805a55d7f0d543c6f4ba08637cba13b4c4..53db3b49cd27e93163c2b7546e01ba9a8689b83c 100644
--- a/source/dnode/vnode/src/tsdb/tsdbDataFileRW.c
+++ b/source/dnode/vnode/src/tsdb/tsdbDataFileRW.c
@@ -946,7 +946,7 @@ static int32_t tsdbDataFileDoWriteTableOldData(SDataFileWriter *writer, const TS
         } else {
           SBrinRecord record[1];
           tBrinBlockGet(writer->ctx->brinBlock, writer->ctx->brinBlockIdx, record);
-          if (key->ts > record->lastKey || (key->ts == record->lastKey && key->version > record->lastKeyVer)) {
+          if (key->ts > record->lastKey || (key->ts == record->lastKey && key->version > record->maxVer)) {
             if (writer->blockData->nRow > 0) {
               code = tsdbDataFileDoWriteBlockData(writer, writer->blockData);
               TSDB_CHECK_CODE(code, lino, _exit);
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead2.c b/source/dnode/vnode/src/tsdb/tsdbRead2.c
index 62d8e38666a24db04458fc12e7dd192e590aace7..d9c9572b0e567ed60b7585597e963c87b4c0e707 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead2.c
@@ -613,19 +613,24 @@ static int32_t filesetIteratorNext(SFilesetIter* pIter, STsdbReader* pReader, bo
     pReader->status.pCurrentFileset = pIter->pFilesetList->data[pIter->index];
 
     STFileObj** pFileObj = pReader->status.pCurrentFileset->farr;
-    if (pFileObj[0] != NULL) {
+    if (pFileObj[0] != NULL || pFileObj[3] != NULL) {
       SDataFileReaderConfig conf = {.tsdb = pReader->pTsdb, .szPage = pReader->pTsdb->pVnode->config.szPage};
 
-      conf.files[0].file = *pFileObj[0]->f;
-      conf.files[0].exist = true;
+      const char* filesName[4] = {0};
 
-      conf.files[1].file = *pFileObj[1]->f;
-      conf.files[1].exist = true;
+      if (pFileObj[0] != NULL) {
+        conf.files[0].file = *pFileObj[0]->f;
+        conf.files[0].exist = true;
+        filesName[0] = pFileObj[0]->fname;
 
-      conf.files[2].file = *pFileObj[2]->f;
-      conf.files[2].exist = true;
+        conf.files[1].file = *pFileObj[1]->f;
+        conf.files[1].exist = true;
+        filesName[1] = pFileObj[1]->fname;
 
-      const char* filesName[4] = {pFileObj[0]->fname, pFileObj[1]->fname, pFileObj[2]->fname};
+        conf.files[2].file = *pFileObj[2]->f;
+        conf.files[2].exist = true;
+        filesName[2] = pFileObj[2]->fname;
+      }
 
       if (pFileObj[3] != NULL) {
         conf.files[3].exist = true;
@@ -1092,7 +1097,7 @@ static int32_t doLoadFileBlock(STsdbReader* pReader, SArray* pIndexList, SBlockN
     }
 
     // 2. version range check
-    if (pRecord->firstKeyVer > pReader->verRange.maxVer || pRecord->lastKeyVer < pReader->verRange.minVer) {
+    if (pRecord->minVer > pReader->verRange.maxVer || pRecord->maxVer < pReader->verRange.minVer) {
       continue;
     }
 
@@ -1236,8 +1241,8 @@ static int32_t getEndPosInDataBlock(STsdbReader* pReader, SBlockData* pBlockData
     endPos = doBinarySearchKey(pBlockData->aTSKEY, pRecord->numRow, pos, key, pReader->order);
   }
 
-  if ((pReader->verRange.maxVer >= pRecord->firstKeyVer && pReader->verRange.maxVer < pRecord->lastKeyVer)||
-      (pReader->verRange.minVer <= pRecord->lastKeyVer && pReader->verRange.minVer > pRecord->firstKeyVer)) {
+  if ((pReader->verRange.maxVer >= pRecord->minVer && pReader->verRange.maxVer < pRecord->maxVer)||
+      (pReader->verRange.minVer <= pRecord->maxVer && pReader->verRange.minVer > pRecord->minVer)) {
     int32_t i = endPos;
 
     if (asc) {
@@ -1399,9 +1404,9 @@ static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader) {
 
   // row index of dump info remain the initial position, let's find the appropriate start position.
   if ((pDumpInfo->rowIndex == 0 && asc) || (pDumpInfo->rowIndex == pRecord->numRow - 1 && (!asc))) {
-    if (asc && pReader->window.skey <= pRecord->firstKey && pReader->verRange.minVer <= pRecord->firstKeyVer) {
+    if (asc && pReader->window.skey <= pRecord->firstKey && pReader->verRange.minVer <= pRecord->minVer) {
       // pDumpInfo->rowIndex = 0;
-    } else if (!asc && pReader->window.ekey >= pRecord->lastKey && pReader->verRange.maxVer >= pRecord->lastKeyVer) {
+    } else if (!asc && pReader->window.ekey >= pRecord->lastKey && pReader->verRange.maxVer >= pRecord->maxVer) {
       // pDumpInfo->rowIndex = pRecord->numRow - 1;
     } else {  // find the appropriate the start position in current block, and set it to be the current rowIndex
       int32_t pos = asc ? pRecord->numRow - 1 : 0;
@@ -1413,16 +1418,16 @@ static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader) {
         tsdbError(
             "%p failed to locate the start position in current block, global index:%d, table index:%d, brange:%" PRId64
             "-%" PRId64 ", minVer:%" PRId64 ", maxVer:%" PRId64 " %s",
-            pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pRecord->firstKey, pRecord->lastKey, pRecord->firstKeyVer,
-            pRecord->lastKeyVer, pReader->idStr);
+            pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pRecord->firstKey, pRecord->lastKey, pRecord->minVer,
+            pRecord->maxVer, pReader->idStr);
         return TSDB_CODE_INVALID_PARA;
       }
 
-      ASSERT(pReader->verRange.minVer <= pRecord->lastKeyVer && pReader->verRange.maxVer >= pRecord->firstKeyVer);
+      ASSERT(pReader->verRange.minVer <= pRecord->maxVer && pReader->verRange.maxVer >= pRecord->minVer);
 
       // find the appropriate start position that satisfies the version requirement.
-      if ((pReader->verRange.maxVer >= pRecord->firstKeyVer && pReader->verRange.maxVer < pRecord->lastKeyVer)||
-          (pReader->verRange.minVer <= pRecord->lastKeyVer && pReader->verRange.minVer > pRecord->firstKeyVer)) {
+      if ((pReader->verRange.maxVer >= pRecord->minVer && pReader->verRange.maxVer < pRecord->maxVer)||
+          (pReader->verRange.minVer <= pRecord->maxVer && pReader->verRange.minVer > pRecord->minVer)) {
         int32_t i = pDumpInfo->rowIndex;
         if (asc) {
           for(; i < pRecord->numRow; ++i) {
@@ -1533,7 +1538,7 @@ static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader) {
   tsdbDebug("%p copy file block to sdatablock, global index:%d, table index:%d, brange:%" PRId64 "-%" PRId64
                 ", rows:%d, remain:%d, minVer:%" PRId64 ", maxVer:%" PRId64 ", uid:%" PRIu64 " elapsed time:%.2f ms, %s",
             pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pRecord->firstKey, pRecord->lastKey, dumpedRows,
-            unDumpedRows, pRecord->firstKeyVer, pRecord->lastKeyVer, pBlockInfo->uid, elapsedTime, pReader->idStr);
+            unDumpedRows, pRecord->minVer, pRecord->maxVer, pBlockInfo->uid, elapsedTime, pReader->idStr);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -1583,9 +1588,10 @@ static int32_t doLoadFileBlockData(STsdbReader* pReader, SDataBlockIter* pBlockI
 
   SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter);
   SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo;
-  SBrinRecord* pRecord = &pBlockInfo->record;
 
+  SBrinRecord* pRecord = &pBlockInfo->record;
   code = tsdbDataFileReadBlockData(pReader->pFileReader, pRecord, pBlockData);
+//  code = tsdbDataFileReadBlockDataByColumn(pReader->pFileReader, pRecord, pBlockData, pReader->pSchema, pSup->colId, pSup->numOfCols);
   if (code != TSDB_CODE_SUCCESS) {
     tsdbError("%p error occurs in loading file block, global index:%d, table index:%d, brange:%" PRId64 "-%" PRId64
               ", rows:%d, code:%s %s",
@@ -1599,7 +1605,7 @@ static int32_t doLoadFileBlockData(STsdbReader* pReader, SDataBlockIter* pBlockI
   tsdbDebug("%p load file block into buffer, global index:%d, index in table block list:%d, brange:%" PRId64 "-%" PRId64
             ", rows:%d, minVer:%" PRId64 ", maxVer:%" PRId64 ", elapsed time:%.2f ms, %s",
             pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pRecord->firstKey, pRecord->lastKey, pRecord->numRow,
-            pRecord->firstKeyVer, pRecord->lastKeyVer, elapsedTime, pReader->idStr);
+            pRecord->minVer, pRecord->maxVer, elapsedTime, pReader->idStr);
 
   pReader->cost.blockLoadTime += elapsedTime;
   pDumpInfo->allDumped = false;
@@ -1807,8 +1813,8 @@ static bool blockIteratorNext(SDataBlockIter* pBlockIter, const char* idStr) {
 static int32_t dataBlockPartiallyRequired(STimeWindow* pWindow, SVersionRange* pVerRange, SFileDataBlockInfo* pBlock) {
   return (pWindow->ekey < pBlock->record.lastKey && pWindow->ekey >= pBlock->record.firstKey) ||
          (pWindow->skey > pBlock->record.firstKey && pWindow->skey <= pBlock->record.lastKey) ||
-         (pVerRange->minVer > pBlock->record.firstKeyVer && pVerRange->minVer <= pBlock->record.lastKeyVer) ||
-         (pVerRange->maxVer < pBlock->record.lastKeyVer && pVerRange->maxVer >= pBlock->record.firstKeyVer);
+         (pVerRange->minVer > pBlock->record.minVer && pVerRange->minVer <= pBlock->record.maxVer) ||
+         (pVerRange->maxVer < pBlock->record.maxVer && pVerRange->maxVer >= pBlock->record.minVer);
 }
 
 static bool getNeighborBlockOfSameTable(SFileDataBlockInfo* pBlockInfo, STableBlockScanInfo* pTableBlockScanInfo,
@@ -1896,24 +1902,24 @@ static bool bufferDataInFileBlockGap(int32_t order, TSDBKEY key, SFileDataBlockI
 
 static bool keyOverlapFileBlock(TSDBKEY key, SFileDataBlockInfo* pBlock, SVersionRange* pVerRange) {
   return (key.ts >= pBlock->record.firstKey && key.ts <= pBlock->record.lastKey) &&
-         (pBlock->record.lastKeyVer >= pVerRange->minVer) && (pBlock->record.firstKeyVer <= pVerRange->maxVer);
+         (pBlock->record.maxVer >= pVerRange->minVer) && (pBlock->record.minVer <= pVerRange->maxVer);
 }
 
-static bool doCheckforDatablockOverlap(STableBlockScanInfo* pBlockScanInfo, const SDataBlk* pBlock,
+static bool doCheckforDatablockOverlap(STableBlockScanInfo* pBlockScanInfo, const SBrinRecord* pRecord,
                                        int32_t startIndex) {
   size_t num = taosArrayGetSize(pBlockScanInfo->delSkyline);
 
   for (int32_t i = startIndex; i < num; i += 1) {
     TSDBKEY* p = taosArrayGet(pBlockScanInfo->delSkyline, i);
-    if (p->ts >= pBlock->minKey.ts && p->ts <= pBlock->maxKey.ts) {
-      if (p->version >= pBlock->minVer) {
+    if (p->ts >= pRecord->firstKey && p->ts <= pRecord->lastKey) {
+      if (p->version >= pRecord->minVer) {
         return true;
       }
-    } else if (p->ts < pBlock->minKey.ts) {  // p->ts < pBlock->minKey.ts
-      if (p->version >= pBlock->minVer) {
+    } else if (p->ts < pRecord->firstKey) {  // p->ts < pBlock->minKey.ts
+      if (p->version >= pRecord->minVer) {
         if (i < num - 1) {
           TSDBKEY* pnext = taosArrayGet(pBlockScanInfo->delSkyline, i + 1);
-          if (pnext->ts >= pBlock->minKey.ts) {
+          if (pnext->ts >= pRecord->firstKey) {
             return true;
           }
         } else {  // it must be the last point
@@ -1928,7 +1934,7 @@ static bool doCheckforDatablockOverlap(STableBlockScanInfo* pBlockScanInfo, cons
   return false;
 }
 
-static bool overlapWithDelSkyline(STableBlockScanInfo* pBlockScanInfo, const SDataBlk* pBlock, int32_t order) {
+static bool overlapWithDelSkyline(STableBlockScanInfo* pBlockScanInfo, const SBrinRecord* pRecord, int32_t order) {
   if (pBlockScanInfo->delSkyline == NULL) {
     return false;
   }
@@ -1936,28 +1942,28 @@ static bool overlapWithDelSkyline(STableBlockScanInfo* pBlockScanInfo, const SDa
   // ts is not overlap
   TSDBKEY* pFirst = taosArrayGet(pBlockScanInfo->delSkyline, 0);
   TSDBKEY* pLast = taosArrayGetLast(pBlockScanInfo->delSkyline);
-  if (pBlock->minKey.ts > pLast->ts || pBlock->maxKey.ts < pFirst->ts) {
+  if (pRecord->firstKey > pLast->ts || pRecord->lastKey < pFirst->ts) {
     return false;
   }
 
   // version is not overlap
   if (ASCENDING_TRAVERSE(order)) {
-    return doCheckforDatablockOverlap(pBlockScanInfo, pBlock, pBlockScanInfo->fileDelIndex);
+    return doCheckforDatablockOverlap(pBlockScanInfo, pRecord, pBlockScanInfo->fileDelIndex);
   } else {
     int32_t index = pBlockScanInfo->fileDelIndex;
     while (1) {
       TSDBKEY* p = taosArrayGet(pBlockScanInfo->delSkyline, index);
-      if (p->ts > pBlock->minKey.ts && index > 0) {
+      if (p->ts > pRecord->firstKey && index > 0) {
         index -= 1;
       } else {  // find the first point that is smaller than the minKey.ts of dataBlock.
-        if (p->ts == pBlock->minKey.ts && p->version < pBlock->maxVer && index > 0) {
+        if (p->ts == pRecord->firstKey && p->version < pRecord->maxVer && index > 0) {
           index -= 1;
         }
         break;
       }
     }
 
-    return doCheckforDatablockOverlap(pBlockScanInfo, pBlock, index);
+    return doCheckforDatablockOverlap(pBlockScanInfo, pRecord, index);
   }
 }
 
@@ -1981,14 +1987,12 @@ static void getBlockToLoadInfo(SDataBlockToLoadInfo* pInfo, SFileDataBlockInfo*
 
   // overlap with neighbor
   if (hasNeighbor) {
-//    pInfo->overlapWithNeighborBlock = overlapWithNeighborBlock(pBlock, &bIndex, pReader->order);
     pInfo->overlapWithNeighborBlock = overlapWithNeighborBlock2(pBlockInfo, &rec, pReader->order);
   }
 
-  // todo:
   // has duplicated ts of different version in this block
-  pInfo->hasDupTs = 0;//(pBlock->nSubBlock == 1) ? pBlock->hasDup : true;
-  pInfo->overlapWithDelInfo = false;//overlapWithDelSkyline(pScanInfo, pBlockInfo, pReader->order);
+  pInfo->hasDupTs = (pBlockInfo->record.numRow > pBlockInfo->record.count);
+  pInfo->overlapWithDelInfo = overlapWithDelSkyline(pScanInfo, &pBlockInfo->record, pReader->order);
 
   if (hasDataInLastBlock(pLastBlockReader)) {
     int64_t tsLast = getCurrentKeyInLastBlock(pLastBlockReader);
@@ -3307,9 +3311,11 @@ static int32_t moveToNextFile(STsdbReader* pReader, SBlockNumber* pBlockNum, SAr
 
   if (pReader->status.pCurrentFileset != NULL) {
     STFileObj* pTombFileObj = pReader->status.pCurrentFileset->farr[3];
+
     if (pTombFileObj != NULL) {
       const TTombBlkArray* pBlkArray = NULL;
-      int32_t              code = tsdbDataFileReadTombBlk(pReader->pFileReader, &pBlkArray);
+
+      int32_t code = tsdbDataFileReadTombBlk(pReader->pFileReader, &pBlkArray);
       if (code != TSDB_CODE_SUCCESS) {
         return code;
       }
@@ -3327,6 +3333,9 @@ static int32_t moveToNextFile(STsdbReader* pReader, SBlockNumber* pBlockNum, SAr
 
         uint64_t             uid = pReader->status.uidList.tableUidList[j];
         STableBlockScanInfo* pScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, uid, pReader->idStr);
+        if (pScanInfo->pDelData == NULL) {
+          pScanInfo->pDelData = taosArrayInit(4, sizeof(SDelData));
+        }
 
         STombRecord record = {0};
         for (int32_t k = 0; k < block.suid->size; ++k) {
@@ -3337,6 +3346,9 @@ static int32_t moveToNextFile(STsdbReader* pReader, SBlockNumber* pBlockNum, SAr
               j += 1;
               uid = pReader->status.uidList.tableUidList[j];
               pScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, uid, pReader->idStr);
+              if (pScanInfo->pDelData == NULL) {
+                pScanInfo->pDelData = taosArrayInit(4, sizeof(SDelData));
+              }
             }
 
             if (record.uid < uid) {