diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index 29626ed67d033c3f3ab4b219b7603c8f4fcbe752..4c7dbd0a456881a0f244d3193bfcb5318d2cb6c6 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -140,9 +140,9 @@ void    tBlockDataReset(SBlockData *pBlockData);
 int32_t tBlockDataSetSchema(SBlockData *pBlockData, STSchema *pTSchema, int64_t suid, int64_t uid);
 int32_t tBlockDataAddColData(SBlockData *pBlockData, int32_t iColData, SColData **ppColData);
 int32_t tBlockDataAppendRow(SBlockData *pBlockData, TSDBROW *pRow, STSchema *pTSchema, int64_t uid);
+void    tBlockDataClearData(SBlockData *pBlockData);
 
 int32_t   tBlockDataCorrectSchema(SBlockData *pBlockData, SBlockData *pBlockDataFrom);
-void      tBlockDataClearData(SBlockData *pBlockData);
 int32_t   tBlockDataMerge(SBlockData *pBlockData1, SBlockData *pBlockData2, SBlockData *pBlockData);
 int32_t   tBlockDataCopy(SBlockData *pBlockDataSrc, SBlockData *pBlockDataDest);
 SColData *tBlockDataGetColDataByIdx(SBlockData *pBlockData, int32_t idx);
diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit.c b/source/dnode/vnode/src/tsdb/tsdbCommit.c
index 3f38b664c2fbc0a6fe8f20fe82e03693b54c13d8..e5c6ee44a0e8b6afcbf25d2a1c728087a929d201 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit.c
@@ -299,7 +299,9 @@ static int32_t tsdbCommitterNextLastRow(SCommitter *pCommitter) {
   SBlockData *pBlockDatal = &pCommitter->dReader.bDatal;
   pCommitter->dReader.iRow++;
   if (pCommitter->dReader.iRow < pBlockDatal->nRow) {
-    if (pBlockDatal->uid == 0) {
+    if (pBlockDatal->uid) {
+      pCommitter->dReader.pRowInfo->uid = pBlockDatal->uid;
+    } else {
       pCommitter->dReader.pRowInfo->uid = pBlockDatal->aUid[pCommitter->dReader.iRow];
     }
     pCommitter->dReader.pRowInfo->row = tsdbRowFromBlockData(pBlockDatal, pCommitter->dReader.iRow);
@@ -327,6 +329,28 @@ _exit:
   return code;
 }
 
+static int32_t tsdbCommitterNextTableData(SCommitter *pCommitter) {
+  int32_t code = 0;
+
+  ASSERT(pCommitter->dReader.pBlockIdx);
+
+  pCommitter->dReader.iBlockIdx++;
+  if (pCommitter->dReader.iBlockIdx < taosArrayGetSize(pCommitter->dReader.aBlockIdx)) {
+    pCommitter->dReader.pBlockIdx =
+        (SBlockIdx *)taosArrayGet(pCommitter->dReader.aBlockIdx, pCommitter->dReader.iBlockIdx);
+
+    code = tsdbReadBlock(pCommitter->dReader.pReader, pCommitter->dReader.pBlockIdx, &pCommitter->dReader.mBlock, NULL);
+    if (code) goto _exit;
+
+    ASSERT(pCommitter->dReader.mBlock.nItem > 0);
+  } else {
+    pCommitter->dReader.pBlockIdx = NULL;
+  }
+
+_exit:
+  return code;
+}
+
 static int32_t tsdbCommitFileDataStart(SCommitter *pCommitter) {
   int32_t    code = 0;
   STsdb     *pTsdb = pCommitter->pTsdb;
@@ -469,37 +493,18 @@ _exit:
   return code;
 }
 
-static int32_t tsdbCommitBlockData(SCommitter *pCommitter, SBlockData *pBlockData, SBlock *pBlock, SBlockIdx *pBlockIdx,
-                                   int8_t toDataOnly) {
-  int32_t code = 0;
-
-  if (pBlock->nSubBlock == 0) {
-    if (!toDataOnly && pBlockData->nRow < pCommitter->minRow) {
-      pBlock->last = 1;
-    } else {
-      pBlock->last = 0;
-    }
-  }
-
-  code =
-      tsdbWriteBlockData(pCommitter->dWriter.pWriter, pBlockData, NULL, NULL, pBlockIdx, pBlock, pCommitter->cmprAlg);
-  if (code) goto _err;
-
-  code = tMapDataPutItem(&pCommitter->dWriter.mBlock, pBlock, tPutBlock);
-  if (code) goto _err;
-
-  return code;
-
-_err:
-  return code;
-}
-
-static int32_t tsdbCommitDataBlock(SCommitter *pCommitter) {
+static int32_t tsdbCommitDataBlock(SCommitter *pCommitter, SBlock *pBlock) {
   int32_t code = 0;
   SBlock  block;
 
   ASSERT(pCommitter->dWriter.bData.nRow > 0);
 
+  if (pBlock) {
+    block = *pBlock;  // as a subblock
+  } else {
+    tBlockReset(&block);  // as a new block
+  }
+
   code = tsdbWriteDataBlock(pCommitter->dWriter.pWriter, &pCommitter->dWriter.bData, &block, NULL, NULL,
                             pCommitter->cmprAlg);
   if (code) goto _exit;
@@ -556,14 +561,14 @@ static int32_t tsdbMergeCommitData(SCommitter *pCommitter, STbDataIter *pIter, S
       code = tsdbCommitterUpdateRowSchema(pCommitter, pTbData->suid, pTbData->uid, TSDBROW_SVERSION(pRow1));
       if (code) goto _err;
 
-      code = tBlockDataAppendRow(pBlockDataW, pRow1, pCommitter->skmRow.pTSchema);
+      code = tBlockDataAppendRow(pBlockDataW, pRow1, pCommitter->skmRow.pTSchema, pTbData->uid);
       if (code) goto _err;
 
       // next
       tsdbTbDataIterNext(pIter);
       pRow1 = tsdbTbDataIterGet(pIter);
     } else if (c > 0) {
-      code = tBlockDataAppendRow(pBlockDataW, pRow2, NULL);
+      code = tBlockDataAppendRow(pBlockDataW, pRow2, NULL, pTbData->uid);
       if (code) goto _err;
 
       iRow++;
@@ -578,13 +583,13 @@ static int32_t tsdbMergeCommitData(SCommitter *pCommitter, STbDataIter *pIter, S
 
     // check
     if (pBlockDataW->nRow >= pCommitter->maxRow * 4 / 5) {
-      code = tsdbCommitDataBlock(pCommitter);
+      code = tsdbCommitDataBlock(pCommitter, NULL);
       if (code) goto _err;
     }
   }
 
   while (pRow2) {
-    code = tBlockDataAppendRow(pBlockDataW, pRow2, NULL);
+    code = tBlockDataAppendRow(pBlockDataW, pRow2, NULL, pTbData->uid);
     if (code) goto _err;
 
     iRow++;
@@ -596,14 +601,14 @@ static int32_t tsdbMergeCommitData(SCommitter *pCommitter, STbDataIter *pIter, S
 
     // check
     if (pBlockDataW->nRow >= pCommitter->maxRow * 4 / 5) {
-      code = tsdbCommitDataBlock(pCommitter);
+      code = tsdbCommitDataBlock(pCommitter, NULL);
       if (code) goto _err;
     }
   }
 
   // check
   if (pBlockDataW->nRow > 0) {
-    code = tsdbCommitDataBlock(pCommitter);
+    code = tsdbCommitDataBlock(pCommitter, NULL);
     if (code) goto _err;
   }
 
@@ -620,7 +625,6 @@ static int32_t tsdbCommitTableMemData(SCommitter *pCommitter, STbDataIter *pIter
   SBlockData *pBlockData = &pCommitter->dWriter.bData;
 
   tBlockDataClearData(pBlockData);
-
   TSDBROW *pRow = tsdbTbDataIterGet(pIter);
   while (true) {
     if (pRow == NULL) {
@@ -636,7 +640,7 @@ static int32_t tsdbCommitTableMemData(SCommitter *pCommitter, STbDataIter *pIter
     if (code) goto _err;
 
     // append
-    code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema);
+    code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema, pTbData->uid);
     if (code) goto _err;
 
     tsdbTbDataIterNext(pIter);
@@ -650,7 +654,7 @@ static int32_t tsdbCommitTableMemData(SCommitter *pCommitter, STbDataIter *pIter
 
     if (pBlockData->nRow >= pCommitter->maxRow * 4 / 5) {
     _write_block:
-      code = tsdbCommitDataBlock(pCommitter);
+      code = tsdbCommitDataBlock(pCommitter, NULL);
       if (code) goto _err;
     }
   }
@@ -662,29 +666,6 @@ _err:
   return code;
 }
 
-static int32_t tsdbCommitTableDiskData(SCommitter *pCommitter, SBlock *pBlock, SBlockIdx *pBlockIdx) {
-  int32_t code = 0;
-  SBlock  block;
-
-  if (pBlock->last) {
-    code = tsdbReadBlockData(pCommitter->dReader.pReader, pBlockIdx, pBlock, &pCommitter->dReader.bData, NULL, NULL);
-    if (code) goto _err;
-
-    tBlockReset(&block);
-    code = tsdbCommitBlockData(pCommitter, &pCommitter->dReader.bData, &block, pBlockIdx, 0);
-    if (code) goto _err;
-  } else {
-    code = tMapDataPutItem(&pCommitter->dWriter.mBlock, pBlock, tPutBlock);
-    if (code) goto _err;
-  }
-
-  return code;
-
-_err:
-  tsdbError("vgId:%d, tsdb commit table disk data failed since %s", TD_VID(pCommitter->pTsdb->pVnode), tstrerror(code));
-  return code;
-}
-
 static int32_t tsdbGetNumOfRowsLessThan(STbDataIter *pIter, TSDBKEY key) {
   int32_t nRow = 0;
 
@@ -713,31 +694,29 @@ static int32_t tsdbMergeAsSubBlock(SCommitter *pCommitter, STbDataIter *pIter, S
   SBlockData *pBlockData = &pCommitter->dWriter.bData;
 
   tBlockDataClearData(pBlockData);
+  TSDBROW *pRow = tsdbTbDataIterGet(pIter);
   while (true) {
-    TSDBROW *pRow = tsdbTbDataIterGet(pIter);
+    if (pRow == NULL) break;
+
+    code = tsdbCommitterUpdateRowSchema(pCommitter, pTbData->suid, pTbData->uid, TSDBROW_SVERSION(pRow));
+    if (code) goto _err;
+
+    code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema, pTbData->uid);
+    if (code) goto _err;
+
+    tsdbTbDataIterNext(pIter);
+    pRow = tsdbTbDataIterGet(pIter);
     if (pRow) {
       TSDBKEY rowKey = TSDBROW_KEY(pRow);
       if (tsdbKeyCmprFn(&rowKey, &pBlock->maxKey) > 0) {
         pRow = NULL;
       }
     }
-
-    if (pRow == NULL) {
-      break;
-    }
-
-    code = tsdbCommitterUpdateRowSchema(pCommitter, pTbData->suid, pTbData->uid, TSDBROW_SVERSION(pRow));
-    if (code) goto _err;
-
-    code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema);
-    if (code) goto _err;
   }
 
-  SBlock block = *pBlock;
-  code = tsdbWriteDataBlock(pCommitter->dWriter.pWriter, pBlockData, &block, NULL, NULL, pCommitter->cmprAlg);
-  if (code) goto _err;
+  ASSERT(pBlockData->nRow > 0 && pBlock->nRow + pBlockData->nRow <= pCommitter->maxRow);
 
-  code = tMapDataPutItem(&pCommitter->dWriter.mBlock, &block, tPutBlock);
+  code = tsdbCommitDataBlock(pCommitter, pBlock);
   if (code) goto _err;
 
   return code;
@@ -753,36 +732,51 @@ static int32_t tsdbMergeCommitLast(SCommitter *pCommitter, STbDataIter *pIter) {
   int32_t  nRow = tsdbGetNumOfRowsLessThan(pIter, (TSDBKEY){.ts = pCommitter->maxKey + 1, .version = VERSION_MIN});
 
   if (pCommitter->dReader.pRowInfo) {
-    for (int32_t iRow = pCommitter->dReader.iRow; iRow < pCommitter->dReader.bDatal.nRow; iRow++) {
-      if (pTbData->uid != pCommitter->dReader.bDatal.aUid[iRow]) break;
-      nRow++;
+    if (pCommitter->dReader.pRowInfo->suid) {
+      for (int32_t iRow = pCommitter->dReader.iRow; iRow < pCommitter->dReader.bDatal.nRow; iRow++) {
+        if (pTbData->uid != pCommitter->dReader.bDatal.aUid[iRow]) break;
+        nRow++;
+      }
+    } else {
+      ASSERT(pCommitter->dReader.iRow == 0);
+      nRow += pCommitter->dReader.bDatal.nRow;
     }
   }
 
   if (nRow == 0) goto _exit;
 
-  SBlockData *pBlockData;
-  TSDBROW    *pRow = tsdbTbDataIterGet(pIter);
-  SRowInfo   *pRowInfo = pCommitter->dReader.pRowInfo;
-
+  TSDBROW *pRow = tsdbTbDataIterGet(pIter);
   if (pRow && TSDBROW_TS(pRow) > pCommitter->maxKey) {
     pRow = NULL;
   }
 
-  if (pRowInfo && (pRowInfo->suid != pTbData->suid || pRowInfo->uid != pTbData->uid)) {
+  SRowInfo *pRowInfo = pCommitter->dReader.pRowInfo;
+  if (pRowInfo && pRowInfo->uid != pTbData->uid) {
     pRowInfo = NULL;
   }
 
   while (nRow) {
+    SBlockData *pBlockData;
+    int8_t      toData;
+
     if (nRow < pCommitter->minRow) {  // to .last
+      toData = 0;
       pBlockData = &pCommitter->dWriter.bDatal;
 
-      // check if same schema
-      if (pBlockData->suid != pTbData->suid || pBlockData->suid == 0) {
-        code = tsdbCommitLastBlock(pCommitter);
-        if (code) goto _err;
+      // commit and reset block data schema if need
+      if (pBlockData->nRow > 0) {
+        if (pBlockData->suid != pTbData->suid || pBlockData->suid == 0) {
+          code = tsdbCommitLastBlock(pCommitter);
+          if (code) goto _err;
 
-        code = tBlockDataSetSchema(pBlockData, pCommitter->skmTable.pTSchema);
+          tBlockDataReset(pBlockData);
+        }
+      }
+
+      // set block data schema if need
+      if (pBlockData->suid == 0 && pBlockData->uid == 0) {
+        code = tBlockDataSetSchema(pBlockData, pCommitter->skmTable.pTSchema, pTbData->suid,
+                                   pTbData->suid ? 0 : pTbData->uid);
         if (code) goto _err;
       }
 
@@ -791,7 +785,9 @@ static int32_t tsdbMergeCommitLast(SCommitter *pCommitter, STbDataIter *pIter) {
         if (code) goto _err;
       }
     } else {  // to .data
+      toData = 1;
       pBlockData = &pCommitter->dWriter.bData;
+      ASSERT(pBlockData->nRow == 0);
     }
 
     while (pRow && pRowInfo) {
@@ -800,7 +796,7 @@ static int32_t tsdbMergeCommitLast(SCommitter *pCommitter, STbDataIter *pIter) {
         code = tsdbCommitterUpdateRowSchema(pCommitter, pTbData->suid, pTbData->uid, TSDBROW_SVERSION(pRow));
         if (code) goto _err;
 
-        code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema);
+        code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema, pTbData->uid);
         if (code) goto _err;
 
         tsdbTbDataIterNext(pIter);
@@ -809,14 +805,14 @@ static int32_t tsdbMergeCommitLast(SCommitter *pCommitter, STbDataIter *pIter) {
           pRow = NULL;
         }
       } else if (c > 0) {
-        code = tBlockDataAppendRow(pBlockData, &pRowInfo->row, NULL);
+        code = tBlockDataAppendRow(pBlockData, &pRowInfo->row, NULL, pTbData->uid);
         if (code) goto _err;
 
         code = tsdbCommitterNextLastRow(pCommitter);
         if (code) goto _err;
 
         pRowInfo = pCommitter->dReader.pRowInfo;
-        if (pRowInfo && (pRowInfo->suid != pTbData->suid || pRowInfo->uid != pTbData->uid)) {
+        if (pRowInfo && pRowInfo->uid != pTbData->uid) {
           pRowInfo = NULL;
         }
       } else {
@@ -824,16 +820,12 @@ static int32_t tsdbMergeCommitLast(SCommitter *pCommitter, STbDataIter *pIter) {
       }
 
       nRow--;
-
-      if (pBlockData->uid) {  // .data block
-        if (pBlockData->nRow >= pCommitter->maxRow * 4 / 5) {
-          code = tsdbCommitDataBlock(pCommitter);
+      if (toData) {
+        if (nRow == 0 || pBlockData->nRow >= pCommitter->maxRow * 4 / 5) {
+          code = tsdbCommitDataBlock(pCommitter, NULL);
           if (code) goto _err;
-
           goto _outer_break;
         }
-      } else {
-        ASSERT(pBlockData->nRow <= pCommitter->maxRow);
       }
     }
 
@@ -841,7 +833,7 @@ static int32_t tsdbMergeCommitLast(SCommitter *pCommitter, STbDataIter *pIter) {
       code = tsdbCommitterUpdateRowSchema(pCommitter, pTbData->suid, pTbData->uid, TSDBROW_SVERSION(pRow));
       if (code) goto _err;
 
-      code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema);
+      code = tBlockDataAppendRow(pBlockData, pRow, pCommitter->skmRow.pTSchema, pTbData->uid);
       if (code) goto _err;
 
       tsdbTbDataIterNext(pIter);
@@ -851,40 +843,34 @@ static int32_t tsdbMergeCommitLast(SCommitter *pCommitter, STbDataIter *pIter) {
       }
 
       nRow--;
-      if (pBlockData->uid) {  // .data block
-        if (pBlockData->nRow >= pCommitter->maxRow * 4 / 5) {
-          code = tsdbCommitDataBlock(pCommitter);
+      if (toData) {
+        if (nRow == 0 || pBlockData->nRow >= pCommitter->maxRow * 4 / 5) {
+          code = tsdbCommitDataBlock(pCommitter, NULL);
           if (code) goto _err;
-
           goto _outer_break;
         }
-      } else {
-        ASSERT(pBlockData->nRow <= pCommitter->maxRow);
       }
     }
 
     while (pRowInfo) {
-      code = tBlockDataAppendRow(pBlockData, &pRowInfo->row, NULL);
+      code = tBlockDataAppendRow(pBlockData, &pRowInfo->row, NULL, pTbData->uid);
       if (code) goto _err;
 
       code = tsdbCommitterNextLastRow(pCommitter);
       if (code) goto _err;
 
       pRowInfo = pCommitter->dReader.pRowInfo;
-      if (pRowInfo && (pRowInfo->suid != pTbData->suid || pRowInfo->uid != pTbData->uid)) {
+      if (pRowInfo && pRowInfo->uid != pTbData->uid) {
         pRowInfo = NULL;
       }
 
       nRow--;
-      if (pBlockData->uid) {  // .data block
-        if (pBlockData->nRow >= pCommitter->maxRow * 4 / 5) {
-          code = tsdbCommitDataBlock(pCommitter);
+      if (toData) {
+        if (nRow == 0 || pBlockData->nRow >= pCommitter->maxRow * 4 / 5) {
+          code = tsdbCommitDataBlock(pCommitter, NULL);
           if (code) goto _err;
-
           goto _outer_break;
         }
-      } else {
-        ASSERT(pBlockData->nRow <= pCommitter->maxRow);
       }
     }
 
@@ -922,8 +908,7 @@ static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
   int32_t iBlock = 0;
   SBlock  block;
   SBlock *pBlock = &block;
-  if (pCommitter->dReader.pBlockIdx && tTABLEIDCmprFn(pTbData, pCommitter->dReader.pBlockIdx) == 0 &&
-      iBlock < pCommitter->dReader.mBlock.nItem) {
+  if (pCommitter->dReader.pBlockIdx && tTABLEIDCmprFn(pTbData, pCommitter->dReader.pBlockIdx) == 0) {
     tMapDataGetItemByIdx(&pCommitter->dReader.mBlock, iBlock, pBlock, tGetBlock);
   } else {
     pBlock = NULL;
@@ -933,8 +918,10 @@ static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
   if (code) goto _err;
 
   tMapDataReset(&pCommitter->dWriter.mBlock);
-  code = tBlockDataSetSchema(&pCommitter->dWriter.bData, pCommitter->skmTable.pTSchema);
+  code = tBlockDataSetSchema(&pCommitter->dWriter.bData, pCommitter->skmTable.pTSchema, pTbData->suid, pTbData->uid);
   if (code) goto _err;
+
+  // .data merge
   while (pBlock && pRow) {
     int32_t c = tBlockCmprFn(pBlock, &(SBlock){.minKey = TSDBROW_KEY(pRow), .maxKey = TSDBROW_KEY(pRow)});
     if (c < 0) {  // disk
@@ -997,25 +984,9 @@ static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData) {
     }
   }
 
-  // merge with last
+  // .data append and .last merge
   code = tsdbMergeCommitLast(pCommitter, pIter);
   if (code) goto _err;
-#if 0
-  int32_t nRowLeft = tsdbGetNumOfRowsLessThan(pIter, (TSDBKEY){.ts = pCommitter->maxKey + 1, .version =
-  VERSION_MIN}); if (pCommitter->dReader.pRowInfo) {
-    for (int32_t iRow = pCommitter->dReader.iRow; iRow < pCommitter->dReader.bDatal.nRow; iRow++) {
-      int64_t uid = pCommitter->dReader.bDatal.aUid[iRow];
-      if (uid == pTbData->uid) {
-        nRowLeft++;
-      }
-    }
-  }
-
-  while (nRowLeft) {
-    code = tsdbMergeCommitLast(pCommitter, pIter, &nRowLeft);
-    if (code) goto _err;
-  }
-#endif
 
   // end
   if (pCommitter->dWriter.mBlock.nItem > 0) {
@@ -1081,7 +1052,7 @@ _err:
 static int32_t tsdbMoveCommitData(SCommitter *pCommitter, TABLEID toTable) {
   int32_t code = 0;
 
-  // data
+  // .data
   while (true) {
     if (pCommitter->dReader.pBlockIdx == NULL || tTABLEIDCmprFn(pCommitter->dReader.pBlockIdx, &toTable) >= 0) break;
 
@@ -1094,61 +1065,64 @@ static int32_t tsdbMoveCommitData(SCommitter *pCommitter, TABLEID toTable) {
       goto _err;
     }
 
-    pCommitter->dReader.iBlockIdx++;
-    if (pCommitter->dReader.iBlockIdx < taosArrayGetSize(pCommitter->dReader.aBlockIdx)) {
-      pCommitter->dReader.pBlockIdx =
-          (SBlockIdx *)taosArrayGet(pCommitter->dReader.aBlockIdx, pCommitter->dReader.iBlockIdx);
-
-      code =
-          tsdbReadBlock(pCommitter->dReader.pReader, pCommitter->dReader.pBlockIdx, &pCommitter->dReader.mBlock, NULL);
-      if (code) goto _err;
-    } else {
-      pCommitter->dReader.pBlockIdx = NULL;
-    }
+    code = tsdbCommitterNextTableData(pCommitter);
+    if (code) goto _err;
   }
 
-  // last
+  // .last
   while (true) {
     if (pCommitter->dReader.pRowInfo == NULL || tTABLEIDCmprFn(pCommitter->dReader.pRowInfo, &toTable) >= 0) break;
 
-    // commit if not same schema
-    if (pCommitter->dWriter.bDatal.nRow > 0) {
-      if (pCommitter->dWriter.bDatal.suid != pCommitter->dReader.pRowInfo->suid ||
-          pCommitter->dWriter.bDatal.suid == 0) {
+    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->nRow > 0) {
+      if (pBlockDataW->suid != pCommitter->dReader.pRowInfo->suid || pBlockDataW->suid == 0) {
         code = tsdbCommitLastBlock(pCommitter);
         if (code) goto _err;
+
+        tBlockDataReset(pBlockDataW);
       }
     }
 
-    if (pCommitter->dWriter.bDatal.nRow == 0) {
-      code = tsdbCommitterUpdateTableSchema(pCommitter, pCommitter->dReader.pRowInfo->suid,
-                                            pCommitter->dReader.pRowInfo->suid, 1 /*TODO*/);
+    // set block data schema if need
+    if (pBlockDataW->suid == 0 && pBlockDataW->uid == 0) {
+      code = tsdbCommitterUpdateTableSchema(pCommitter, suid, uid, 1 /*TOOD*/);
       if (code) goto _err;
 
-      pCommitter->dWriter.bDatal.suid = pCommitter->dReader.pRowInfo->suid;
-      code = tBlockDataSetSchema(&pCommitter->dWriter.bDatal, pCommitter->skmTable.pTSchema);
+      code = tBlockDataSetSchema(pBlockDataW, pCommitter->skmTable.pTSchema, suid, suid ? 0 : uid);
       if (code) goto _err;
     }
 
     // check if it can make sure that one table data in one block
-    int64_t uid = pCommitter->dReader.pRowInfo->uid;
     int32_t nRow = 0;
-    for (int32_t iRow = pCommitter->dReader.iRow;
-         (iRow < pCommitter->dReader.bDatal.nRow) && (pCommitter->dReader.bDatal.aUid[iRow] == uid); iRow++) {
-      nRow++;
+    if (pBlockDataR->suid) {
+      for (int32_t iRow = pCommitter->dReader.iRow; (iRow < pBlockDataR->nRow) && (pBlockDataR->aUid[iRow] == uid);
+           iRow++) {
+        nRow++;
+      }
+    } else {
+      ASSERT(pCommitter->dReader.iRow == 0);
+      nRow = pBlockDataR->nRow;
     }
 
     ASSERT(nRow > 0 && nRow < pCommitter->minRow);
 
-    if (pCommitter->dWriter.bDatal.nRow + nRow > pCommitter->maxRow) {
-      ASSERT(pCommitter->dWriter.bDatal.nRow > 0);
+    if (pBlockDataW->nRow + nRow > pCommitter->maxRow) {
+      ASSERT(pBlockDataW->nRow > 0);
 
       code = tsdbCommitLastBlock(pCommitter);
       if (code) goto _err;
     }
 
     while (nRow > 0) {
-      code = tBlockDataAppendRow(&pCommitter->dWriter.bDatal, &pCommitter->dReader.pRowInfo->row, NULL);
+      code = tBlockDataAppendRow(pBlockDataW, &pCommitter->dReader.pRowInfo->row, NULL, uid);
       if (code) goto _err;
 
       code = tsdbCommitterNextLastRow(pCommitter);