diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index 4c8208faa7cd819d581eee556b6bb5cf3eba0b7d..c07bf2d6c841d9b94947bafc5d7e854c4cb49b79 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -172,6 +172,7 @@ int32_t tGetDelData(uint8_t *p, void *ph);
 void    tMapDataReset(SMapData *pMapData);
 void    tMapDataClear(SMapData *pMapData);
 int32_t tMapDataPutItem(SMapData *pMapData, void *pItem, int32_t (*tPutItemFn)(uint8_t *, void *));
+int32_t tMapDataCopy(SMapData *pFrom, SMapData *pTo);
 void    tMapDataGetItemByIdx(SMapData *pMapData, int32_t idx, void *pItem, int32_t (*tGetItemFn)(uint8_t *, void *));
 int32_t tMapDataSearch(SMapData *pMapData, void *pSearchItem, int32_t (*tGetItemFn)(uint8_t *, void *),
                        int32_t (*tItemCmprFn)(const void *, const void *), void *pItem);
diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit.c b/source/dnode/vnode/src/tsdb/tsdbCommit.c
index 8542eca8c9ef62d3303a18956d9ca629268dd388..08688b442b052b05f17a3f1f6680b600bf868a76 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit.c
@@ -591,7 +591,7 @@ _err:
   return code;
 }
 
-static int32_t tsdbMergeCommitData(SCommitter *pCommitter, STbDataIter *pIter, SBlock *pBlock) {
+static int32_t tsdbMergeCommitDataBlock(SCommitter *pCommitter, STbDataIter *pIter, SBlock *pBlock) {
   int32_t     code = 0;
   STbData    *pTbData = pIter->pTbData;
   SBlockData *pBlockDataR = &pCommitter->dReader.bData;
@@ -941,25 +941,9 @@ _err:
   return code;
 }
 
-static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
+static int32_t tsdbMergeCommitData(SCommitter *pCommitter, STbDataIter *pIter) {
   int32_t code = 0;
 
-  ASSERT(pCommitter->dReader.pBlockIdx == NULL || tTABLEIDCmprFn(pCommitter->dReader.pBlockIdx, pTbData) >= 0);
-  ASSERT(pCommitter->dReader.pRowInfo == NULL || tTABLEIDCmprFn(pCommitter->dReader.pRowInfo, pTbData) >= 0);
-
-  // merge commit table data
-  STbDataIter  iter = {0};
-  STbDataIter *pIter = &iter;
-  TSDBROW     *pRow;
-
-  tsdbTbDataIterOpen(pTbData, &(TSDBKEY){.ts = pCommitter->minKey, .version = VERSION_MIN}, 0, pIter);
-  pRow = tsdbTbDataIterGet(pIter);
-  if (pRow && TSDBROW_TS(pRow) > pCommitter->maxKey) {
-    pRow = NULL;
-  }
-
-  if (pRow == NULL) goto _exit;
-
   int32_t iBlock = 0;
   SBlock  block;
   SBlock *pBlock = █
@@ -1010,7 +994,7 @@ static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
         code = tsdbMergeAsSubBlock(pCommitter, pIter, pBlock);
         if (code) goto _err;
       } else {
-        code = tsdbMergeCommitData(pCommitter, pIter, pBlock);
+        code = tsdbMergeCommitDataBlock(pCommitter, pIter, pBlock);
         if (code) goto _err;
       }
 
@@ -1041,11 +1025,46 @@ static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
     }
   }
 
-  // .data append and .last merge
-  code = tsdbMergeCommitLast(pCommitter, pIter);
+_exit:
+  return code;
+
+_err:
+  return code;
+}
+
+static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
+  int32_t code = 0;
+
+  ASSERT(pCommitter->dReader.pBlockIdx == NULL || tTABLEIDCmprFn(pCommitter->dReader.pBlockIdx, pTbData) >= 0);
+
+  // merge commit table data
+  STbDataIter iter = {0};
+  TSDBROW    *pRow;
+
+  tsdbTbDataIterOpen(pTbData, &(TSDBKEY){.ts = pCommitter->minKey, .version = VERSION_MIN}, 0, &iter);
+  pRow = tsdbTbDataIterGet(&iter);
+  if (pRow && TSDBROW_TS(pRow) > pCommitter->maxKey) {
+    pRow = NULL;
+  }
+
+  if (pRow == NULL) {
+    if (pCommitter->dReader.pBlockIdx && tTABLEIDCmprFn(pCommitter->dReader.pBlockIdx, pTbData) == 0) {
+      code = tMapDataCopy(&pCommitter->dReader.mBlock, &pCommitter->dWriter.mBlock);
+      if (code) goto _err;
+    }
+
+    goto _exit;
+  }
+
+  // commit data
+  code = tsdbMergeCommitData(pCommitter, &iter);
   if (code) goto _err;
 
-  // end
+  // commit last
+  code = tsdbMergeCommitLast(pCommitter, &iter);
+  if (code) goto _err;
+
+_exit:
   if (pCommitter->dWriter.mBlock.nItem > 0) {
     SBlockIdx blockIdx = {.suid = pTbData->suid, .uid = pTbData->uid};
     code = tsdbWriteBlock(pCommitter->dWriter.pWriter, &pCommitter->dWriter.mBlock, &blockIdx);
@@ -1056,9 +1075,7 @@ static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
       goto _err;
     }
   }
-
-_exit:
-  pRow = tsdbTbDataIterGet(pIter);
+  pRow = tsdbTbDataIterGet(&iter);
   if (pRow) {
     pCommitter->nextKey = TMIN(pCommitter->nextKey, TSDBROW_TS(pRow));
   }
@@ -1126,71 +1143,6 @@ static int32_t tsdbMoveCommitData(SCommitter *pCommitter, TABLEID toTable) {
     if (code) goto _err;
   }
 
-  // .last
-  while (true) {
-    if (pCommitter->dReader.pRowInfo == NULL || tTABLEIDCmprFn(pCommitter->dReader.pRowInfo, &toTable) >= 0) break;
-
-    SBlockData *pBlockDataR = &pCommitter->dReader.bDatal;
-    SBlockData *pBlockDataW = &pCommitter->dWriter.bDatal;
-    tb_uid_t    suid = pCommitter->dReader.pRowInfo->suid;
-    tb_uid_t    uid = pCommitter->dReader.pRowInfo->uid;
-
-    ASSERT((pBlockDataR->suid && !pBlockDataR->uid) || (!pBlockDataR->suid && pBlockDataR->uid));
-    ASSERT(pBlockDataR->nRow > 0);
-
-    // commit and reset block data schema if need
-    if (pBlockDataW->suid || pBlockDataW->uid) {
-      if (pBlockDataW->suid != suid || pBlockDataW->suid == 0) {
-        if (pBlockDataW->nRow > 0) {
-          code = tsdbCommitLastBlock(pCommitter);
-          if (code) goto _err;
-        }
-        tBlockDataReset(pBlockDataW);
-      }
-    }
-
-    // set block data schema if need
-    if (pBlockDataW->suid == 0 && pBlockDataW->uid == 0) {
-      code = tsdbCommitterUpdateTableSchema(pCommitter, suid, uid);
-      if (code) goto _err;
-
-      code = tBlockDataInit(pBlockDataW, suid, suid ? 0 : uid, pCommitter->skmTable.pTSchema);
-      if (code) goto _err;
-    }
-
-    // check if it can make sure that one table data in one block
-    int32_t nRow = 0;
-    if (pBlockDataR->suid) {
-      int32_t iRow = pCommitter->dReader.iRow;
-      while ((iRow < pBlockDataR->nRow) && (pBlockDataR->aUid[iRow] == uid)) {
-        nRow++;
-        iRow++;
-      }
-    } else {
-      ASSERT(pCommitter->dReader.iRow == 0);
-      nRow = pBlockDataR->nRow;
-    }
-
-    ASSERT(nRow > 0 && nRow < pCommitter->minRow);
-
-    if (pBlockDataW->nRow + nRow > pCommitter->maxRow) {
-      ASSERT(pBlockDataW->nRow > 0);
-
-      code = tsdbCommitLastBlock(pCommitter);
-      if (code) goto _err;
-    }
-
-    while (nRow > 0) {
-      code = tBlockDataAppendRow(pBlockDataW, &pCommitter->dReader.pRowInfo->row, NULL, uid);
-      if (code) goto _err;
-
-      code = tsdbCommitterNextLastRow(pCommitter);
-      if (code) goto _err;
-
-      nRow--;
-    }
-  }
-
   return code;
 
 _err:
diff --git a/source/dnode/vnode/src/tsdb/tsdbUtil.c b/source/dnode/vnode/src/tsdb/tsdbUtil.c
index 6db9d5e6f40c5d35e52d90dd86b28f4cb7a94676..49778542e39b80eec770989e8a7cdb28cd0d1899 100644
--- a/source/dnode/vnode/src/tsdb/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbUtil.c
@@ -51,6 +51,22 @@ _exit:
   return code;
 }
 
+int32_t tMapDataCopy(SMapData *pFrom, SMapData *pTo) {
+  int32_t code = 0;
+
+  pTo->nItem = pFrom->nItem;
+  pTo->nData = pFrom->nData;
+  code = tRealloc((uint8_t **)&pTo->aOffset, sizeof(int32_t) * pFrom->nItem);
+  if (code) goto _exit;
+  code = tRealloc(&pTo->pData, pFrom->nData);
+  if (code) goto _exit;
+  memcpy(pTo->aOffset, pFrom->aOffset, sizeof(int32_t) * pFrom->nItem);
+  memcpy(pTo->pData, pFrom->pData, pFrom->nData);
+
+_exit:
+  return code;
+}
+
 int32_t tMapDataSearch(SMapData *pMapData, void *pSearchItem, int32_t (*tGetItemFn)(uint8_t *, void *),
                        int32_t (*tItemCmprFn)(const void *, const void *), void *pItem) {
   int32_t code = 0;