diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit.c b/source/dnode/vnode/src/tsdb/tsdbCommit.c
index ee147d929e4e2cc2a6e1c3298281e57317fc4738..0b844e98c642a8de06d358c2fe2a1542e506a1f7 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit.c
@@ -346,75 +346,56 @@ _err:
   return code;
 }
 
+static FORCE_INLINE bool tsdbCommitIterEnd(SCommitter *pCommitter, STbDataIter *pIter) {
+  TSDBROW *pRow = tsdbTbDataIterGet(pIter);
+  return ((pRow == NULL) || (pRow->pTSRow->ts <= pCommitter->maxKey));
+}
+
+static int32_t tsdbCommitTableDataImpl(SCommitter *pCommitter, STbDataIter *pIter, SBlockIdx *pBlockIdx) {
+  int32_t  code = 0;
+  TSDBROW *pRow;
+  int32_t  iBlock;
+  int32_t  nBlock;
+  SBlock  *pBlock;
+  SBlock   block;
+
+  // start(todo)
+
+  // impl
+  pRow = tsdbTbDataIterGet(pIter);
+  if (iBlock < nBlock) {
+    pBlock = &block;
+    tMapDataGetItemByIdx(&pCommitter->oBlock, iBlock, pBlock, tGetBlock);
+  }
+  while (true) {
+    if ((pRow == NULL || pRow->pTSRow->ts > pCommitter->maxKey) && pBlock == NULL) break;
+  }
+
+  // end
+
+  return code;
+
+_err:
+  return code;
+}
+
 static int32_t tsdbCommitTableData(SCommitter *pCommitter, STbData *pTbData, SBlockIdx *pBlockIdx) {
   int32_t      code = 0;
   STbDataIter *pIter = NULL;
   STbDataIter  iter;
-  TSDBROW     *pRow = NULL;
-  SBlockIdx    blockIdx;
-  int32_t      iBlock;
-  int32_t      nBlock;
-  SBlock      *pBlock;
-  SBlock       block;
+  TSDBROW     *pRow;
 
-  // check
+  // create iter if can
   if (pTbData) {
     pIter = &iter;
     tsdbTbDataIterOpen(pTbData, &(TSDBKEY){.ts = pCommitter->minKey, .version = 0}, 0, pIter);
-    pRow = tsdbTbDataIterGet(pIter);
-    if ((pRow == NULL || pRow->pTSRow->ts > pCommitter->maxKey) && pBlockIdx == NULL) goto _exit;
   }
 
-  // start
-  tMapDataReset(&pCommitter->oBlock);
-  tMapDataReset(&pCommitter->nBlock);
-  if (pBlockIdx) {
-    code = tsdbReadBlock(pCommitter->pReader, pBlockIdx, &pCommitter->oBlock, NULL);
-    if (code) goto _err;
-  }
-
-  if (pTbData) {
-    blockIdx.suid = pTbData->suid;
-    blockIdx.uid = pTbData->uid;
-  } else {
-    blockIdx.suid = pBlockIdx->suid;
-    blockIdx.uid = pBlockIdx->uid;
-  }
-  blockIdx.minKey.version = INT64_MAX;
-  blockIdx.minKey.ts = TSKEY_MAX;
-  blockIdx.maxKey.version = 0;
-  blockIdx.maxKey.ts = TSKEY_MIN;
-  blockIdx.minVersion = INT64_MAX;
-  blockIdx.maxVersion = INT64_MIN;
-  blockIdx.offset = -1;
-  blockIdx.size = -1;
-
-  // impl (todo)
-  iBlock = 0;
-  nBlock = pCommitter->oBlock.nItem;
-  do {
-    pRow = tsdbTbDataIterGet(pIter);
-    if (iBlock < nBlock) {
-      pBlock = &block;
-      code = tMapDataGetItemByIdx(&pCommitter->oBlock, iBlock, pBlock, tGetBlock);
-      if (code) goto _err;
-    } else {
-      pBlock == NULL;
-    }
-
-    if ((pRow == NULL || pRow->pTSRow->ts > pCommitter->maxKey) && pBlock == NULL) break;
-
-    code = tsdbMergeData(pCommitter, pIter, pBlock);
-    if (code) goto _err;
-
-    if (iBlock < nBlock) iBlock++;
-  } while (true);
-
-  // end
-  code = tsdbWriteBlock(pCommitter->pWriter, &pCommitter->nBlock, NULL, &blockIdx);
-  if (code) goto _err;
+  // check
+  if (tsdbCommitIterEnd(pCommitter, pIter) && pBlockIdx == NULL) goto _exit;
 
-  code = tMapDataPutItem(&pCommitter->nBlockIdx, &blockIdx, tPutBlockIdx);
+  // impl
+  code = tsdbCommitTableDataImpl(pCommitter, pIter, pBlockIdx);
   if (code) goto _err;
 
 _exit:
@@ -485,7 +466,7 @@ static int32_t tsdbCommitFileDataImpl(SCommitter *pCommitter) {
   pTbData = (STbData *)taosArrayGetP(pMemTable->aTbData, iTbData);
   if (iBlockIdx < nBlockIdx) {
     pBlockIdx = &blockIdx;
-    code = tMapDataGetItemByIdx(&pCommitter->oBlockIdx, iBlockIdx, &blockIdx, tGetBlockIdx);
+    code = tMapDataGetItemByIdx(&pCommitter->oBlockIdx, iBlockIdx, pBlockIdx, tGetBlockIdx);
     if (code) goto _err;
   } else {
     pBlockIdx = NULL;
@@ -529,7 +510,7 @@ static int32_t tsdbCommitFileDataImpl(SCommitter *pCommitter) {
     iBlockIdx++;
     if (iBlockIdx < nBlockIdx) {
       pBlockIdx = &blockIdx;
-      code = tMapDataGetItemByIdx(&pCommitter->oBlockIdx, iBlockIdx, &blockIdx, tGetBlockIdx);
+      code = tMapDataGetItemByIdx(&pCommitter->oBlockIdx, iBlockIdx, pBlockIdx, tGetBlockIdx);
       if (code) goto _err;
     } else {
       pBlockIdx = NULL;
@@ -549,7 +530,7 @@ static int32_t tsdbCommitFileDataImpl(SCommitter *pCommitter) {
     }
     if (iBlockIdx < nBlockIdx) {
       pBlockIdx = &blockIdx;
-      code = tMapDataGetItemByIdx(&pCommitter->oBlockIdx, iBlockIdx, &blockIdx, tGetBlockIdx);
+      code = tMapDataGetItemByIdx(&pCommitter->oBlockIdx, iBlockIdx, pBlockIdx, tGetBlockIdx);
       if (code) goto _err;
     } else {
       pBlockIdx = NULL;