diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index 2e09cab694bd0c734a5f30491067e8d62cbd72ab..9a61c0f64548fe889e4ea76f4dba62e5259a1260 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -871,8 +871,6 @@ typedef struct SCacheRowsReader {
   int32_t         numOfTables;
   SArray         *pLDataIterArray;
   STsdbReadSnap  *pReadSnap;
-  SDataFReader   *pDataFReader;
-  SDataFReader   *pDataFReaderLast;
   char           *idstr;
   int64_t         lastTs;
 } SCacheRowsReader;
diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index 6f967dc8c9fea38824388f7146c36fd740970248..9c57ced1740dcb1e7e9cc51942cbf19c37e1d4c5 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -1691,37 +1691,27 @@ _err:
   }
   return code;
 }
-/*
-static int32_t getTableDelIdx(SDelFReader *pDelFReader, tb_uid_t suid, tb_uid_t uid, SDelIdx *pDelIdx) {
-  int32_t code = 0;
-  SArray *pDelIdxArray = NULL;
 
-  // SMapData delIdxMap;
-  pDelIdxArray = taosArrayInit(32, sizeof(SDelIdx));
-  SDelIdx idx = {.suid = suid, .uid = uid};
-
-  // tMapDataReset(&delIdxMap);
-  code = tsdbReadDelIdx(pDelFReader, pDelIdxArray);
-  if (code) goto _err;
+static int32_t loadTombFromBlk(const TTombBlkArray *pTombBlkArray, SCacheRowsReader *pReader, void *pFileReader,
+                               bool isFile) {
+  int32_t code = 0;
 
-  // code = tMapDataSearch(&delIdxMap, &idx, tGetDelIdx, tCmprDelIdx, pDelIdx);
-  SDelIdx *pIdx = taosArraySearch(pDelIdxArray, &idx, tCmprDelIdx, TD_EQ);
+  return TSDB_CODE_SUCCESS;
+}
 
-  *pDelIdx = *pIdx;
+static int32_t loadDataTomb(SCacheRowsReader *pReader, SDataFileReader *pFileReader) {
+  int32_t code = 0;
 
-_err:
-  if (pDelIdxArray) {
-    taosArrayDestroy(pDelIdxArray);
+  const TTombBlkArray *pBlkArray = NULL;
+  code = tsdbDataFileReadTombBlk(pFileReader, &pBlkArray);
+  if (code != TSDB_CODE_SUCCESS) {
+    return code;
   }
-  return code;
+
+  return loadTombFromBlk(pBlkArray, pReader, pFileReader, true);
 }
-*/
-typedef struct {
-  SMergeTree  mergeTree;
-  SMergeTree *pMergeTree;
-} SFSLastIter;
 
-static int32_t loadSttTombData(STsdbReader *pTsdbReader, SSttFileReader *pSttFileReader, SSttBlockLoadInfo *pLoadInfo) {
+static int32_t loadSttTomb(STsdbReader *pTsdbReader, SSttFileReader *pSttFileReader, SSttBlockLoadInfo *pLoadInfo) {
   int32_t code = 0;
 
   SCacheRowsReader *pReader = (SCacheRowsReader *)pTsdbReader;
@@ -1736,12 +1726,14 @@ static int32_t loadSttTombData(STsdbReader *pTsdbReader, SSttFileReader *pSttFil
     return code;
   }
 
-  /*
-  return doLoadTombDataFromTombBlk(pBlkArray, pReader, pSttFileReader, false);
-  */
-  return code;
+  return loadTombFromBlk(pBlkArray, pReader, pSttFileReader, false);
 }
 
+typedef struct {
+  SMergeTree  mergeTree;
+  SMergeTree *pMergeTree;
+} SFSLastIter;
+
 static int32_t lastIterOpen(SFSLastIter *iter, STFileSet *pFileSet, STsdb *pTsdb, STSchema *pTSchema, tb_uid_t suid,
                             tb_uid_t uid, SCacheRowsReader *pr, int64_t lastTs, int16_t *aCols, int nCols) {
   int32_t code = 0;
@@ -1764,7 +1756,7 @@ static int32_t lastIterOpen(SFSLastIter *iter, STFileSet *pFileSet, STsdb *pTsdb
       .pSttFileBlockIterArray = pr->pLDataIterArray,
       .pCols = aCols,
       .numOfCols = nCols,
-      .loadTombFn = loadSttTombData,
+      .loadTombFn = loadSttTomb,
       .pReader = pr,
       .idstr = pr->idstr,
   };
@@ -2545,8 +2537,8 @@ typedef struct CacheNextRowIter {
 } CacheNextRowIter;
 
 static int32_t nextRowIterOpen(CacheNextRowIter *pIter, tb_uid_t uid, STsdb *pTsdb, STSchema *pTSchema, tb_uid_t suid,
-                               SArray *pLDataIterArray, STsdbReadSnap *pReadSnap, SDataFReader **pDataFReader,
-                               SDataFReader **pDataFReaderLast, int64_t lastTs, SCacheRowsReader *pr) {
+                               SArray *pLDataIterArray, STsdbReadSnap *pReadSnap, int64_t lastTs,
+                               SCacheRowsReader *pr) {
   int code = 0;
 
   STbData *pMem = NULL;
@@ -2630,7 +2622,7 @@ static int32_t nextRowIterOpen(CacheNextRowIter *pIter, tb_uid_t uid, STsdb *pTs
 pIter->input[2] = (TsdbNextRowState){
       &pIter->fsLastRow, false, true, false, &pIter->fsLastState, getNextRowFromFSLast, clearNextRowFromFSLast};
   */
-  pIter->input[3] =
+  pIter->input[2] =
       (TsdbNextRowState){&pIter->fsRow, false, true, false, &pIter->fsState, getNextRowFromFS, clearNextRowFromFS};
 
   if (pMem) {
@@ -2680,7 +2672,7 @@ static int32_t nextRowIterGet(CacheNextRowIter *pIter, TSDBROW **ppRow, bool *pI
                               int16_t *aCols, int nCols) {
   int code = 0;
   for (;;) {
-    for (int i = 0; i < 4; ++i) {
+    for (int i = 0; i < 3; ++i) {
       if (pIter->input[i].next && !pIter->input[i].stop) {
         code = pIter->input[i].nextRowFn(pIter->input[i].iter, &pIter->input[i].pRow, &pIter->input[i].ignoreEarlierTs,
                                          isLast, aCols, nCols);
@@ -2835,8 +2827,7 @@ static int32_t mergeLastCid(tb_uid_t uid, STsdb *pTsdb, SArray **ppLastArray, SC
   TSKEY lastRowTs = TSKEY_MAX;
 
   CacheNextRowIter iter = {0};
-  nextRowIterOpen(&iter, uid, pTsdb, pTSchema, pr->info.suid, pr->pLDataIterArray, pr->pReadSnap, &pr->pDataFReader,
-                  &pr->pDataFReaderLast, pr->lastTs, pr);
+  nextRowIterOpen(&iter, uid, pTsdb, pTSchema, pr->info.suid, pr->pLDataIterArray, pr->pReadSnap, pr->lastTs, pr);
 
   do {
     TSDBROW *pRow = NULL;
@@ -3005,8 +2996,7 @@ static int32_t mergeLastRowCid(tb_uid_t uid, STsdb *pTsdb, SArray **ppLastArray,
   TSKEY lastRowTs = TSKEY_MAX;
 
   CacheNextRowIter iter = {0};
-  nextRowIterOpen(&iter, uid, pTsdb, pTSchema, pr->info.suid, pr->pLDataIterArray, pr->pReadSnap, &pr->pDataFReader,
-                  &pr->pDataFReaderLast, pr->lastTs, pr);
+  nextRowIterOpen(&iter, uid, pTsdb, pTSchema, pr->info.suid, pr->pLDataIterArray, pr->pReadSnap, pr->lastTs, pr);
 
   do {
     TSDBROW *pRow = NULL;
diff --git a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
index 601f97aff4372cc765e6d5d77dfa57df31cdcc92..4901cf5e26272962ff4e34cd3b2dc19ece6667bc 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
@@ -300,8 +300,6 @@ int32_t tsdbRetrieveCacheRows(void* pReader, SSDataBlock* pResBlock, const int32
   if (code != TSDB_CODE_SUCCESS) {
     goto _end;
   }
-  pr->pDataFReader = NULL;
-  pr->pDataFReaderLast = NULL;
 
   int8_t ltype = (pr->type & CACHESCAN_RETRIEVE_LAST) >> 3;
 
@@ -422,15 +420,13 @@ int32_t tsdbRetrieveCacheRows(void* pReader, SSDataBlock* pResBlock, const int32
   }
 
 _end:
-  tsdbDataFReaderClose(&pr->pDataFReaderLast);
-  tsdbDataFReaderClose(&pr->pDataFReader);
+  tsdbUntakeReadSnap2((STsdbReader*)pr, pr->pReadSnap, true);
 
   int64_t loadBlocks = 0;
   double  elapse = 0;
   pr->pLDataIterArray = destroySttBlockReader(pr->pLDataIterArray, &loadBlocks, &elapse);
   pr->pLDataIterArray = taosArrayInit(4, POINTER_BYTES);
 
-  tsdbUntakeReadSnap2((STsdbReader*)pr, pr->pReadSnap, true);
   taosThreadMutexUnlock(&pr->readerMutex);
 
   if (pRes != NULL) {