diff --git a/src/tsdb/src/tsdbTruncate.c b/src/tsdb/src/tsdbTruncate.c
index a7cbcd89a20622908a00f5c245e792ec109d6272..82ab2a20c0282450a5166027a646687d8de1f88c 100644
--- a/src/tsdb/src/tsdbTruncate.c
+++ b/src/tsdb/src/tsdbTruncate.c
@@ -29,7 +29,7 @@ typedef struct {
   SDFileSet  wSet;
   SArray *   aBlkIdx;
   SArray *   aSupBlk;
-  SDataCols *pDataCols;
+  SDataCols *pDCols;
   void *     param;  // STruncateTblMsg *pMsg
 } STruncateH;
 
@@ -59,7 +59,8 @@ static int  tsdbTruncateCache(STsdbRepo *pRepo, void *param);
 static int  tsdbTruncateFSetInit(STruncateH *pTruncateH, SDFileSet *pSet);
 static void tsdbTruncateFSetEnd(STruncateH *pTruncateH);
 static int  tsdbTruncateFSetImpl(STruncateH *pTruncateH);
-static int  tsdbWriteBlockToRightFile(STruncateH *pTruncateH, STable *pTable, SDataCols *pDataCols, void **ppBuf,
+static bool tsdbBlockInterleaved(STruncateH *pTruncateH, SBlock *pBlock);
+static int  tsdbWriteBlockToRightFile(STruncateH *pTruncateH, STable *pTable, SDataCols *pDCols, void **ppBuf,
                                       void **ppCBuf, void **ppExBuf);
 
 enum {
@@ -71,6 +72,7 @@ enum {
 int tsdbTruncate(STsdbRepo *pRepo, void *param) { return tsdbAsyncTruncate(pRepo, param); }
 
 void *tsdbTruncateImpl(STsdbRepo *pRepo, void *param) {
+  ASSERT(param != NULL);
   int32_t code = 0;
   // Step 1: check and clear cache
   if ((code = tsdbTruncateCache(pRepo, param)) != 0) {
@@ -180,15 +182,13 @@ static int tsdbTruncateTSData(STsdbRepo *pRepo, void *param) {
   STruncateH       truncateH = {0};
   SDFileSet *      pSet = NULL;
   STruncateTblMsg *pMsg = (STruncateTblMsg *)param;
-  ASSERT(pMsg != NULL);
-
-  truncateH.param = pMsg;
 
   tsdbDebug("vgId:%d start to truncate TS data for %" PRIu64, REPO_ID(pRepo), pMsg->uid);
 
   if (tsdbInitTruncateH(&truncateH, pRepo) < 0) {
     return -1;
   }
+  truncateH.param = pMsg;
 
   int sFid = TSDB_KEY_FID(pMsg->span[0].skey, pCfg->daysPerFile, pCfg->precision);
   int eFid = TSDB_KEY_FID(pMsg->span[0].ekey, pCfg->daysPerFile, pCfg->precision);
@@ -217,7 +217,6 @@ static int tsdbTruncateTSData(STsdbRepo *pRepo, void *param) {
       continue;
     }
 #endif
-
     if (tsdbTruncateFSet(&truncateH, pSet) < 0) {
       tsdbDestroyTruncateH(&truncateH);
       tsdbError("vgId:%d failed to truncate FSET %d since %s", REPO_ID(pRepo), pSet->fid, tstrerror(terrno));
@@ -307,8 +306,8 @@ static int tsdbInitTruncateH(STruncateH *pTruncateH, STsdbRepo *pRepo) {
     return -1;
   }
 
-  pTruncateH->pDataCols = tdNewDataCols(0, pCfg->maxRowsPerFileBlock);
-  if (pTruncateH->pDataCols == NULL) {
+  pTruncateH->pDCols = tdNewDataCols(0, pCfg->maxRowsPerFileBlock);
+  if (pTruncateH->pDCols == NULL) {
     terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
     tsdbDestroyTruncateH(pTruncateH);
     return -1;
@@ -318,7 +317,7 @@ static int tsdbInitTruncateH(STruncateH *pTruncateH, STsdbRepo *pRepo) {
 }
 
 static void tsdbDestroyTruncateH(STruncateH *pTruncateH) {
-  pTruncateH->pDataCols = tdFreeDataCols(pTruncateH->pDataCols);
+  pTruncateH->pDCols = tdFreeDataCols(pTruncateH->pDCols);
   pTruncateH->aSupBlk = taosArrayDestroy(pTruncateH->aSupBlk);
   pTruncateH->aBlkIdx = taosArrayDestroy(pTruncateH->aBlkIdx);
   tsdbDestroyTruncateTblArray(pTruncateH);
@@ -423,16 +422,56 @@ static int tsdbTruncateFSetInit(STruncateH *pTruncateH, SDFileSet *pSet) {
 
 static void tsdbTruncateFSetEnd(STruncateH *pTruncateH) { tsdbCloseAndUnsetFSet(&(pTruncateH->readh)); }
 
+static bool tsdbBlockInterleaved(STruncateH *pTruncateH, SBlock *pBlock) {
+  // STruncateTblMsg *pMsg = (STruncateTblMsg *)pTruncateH->param;
+  // for (uint16_t i = 0; i < pMsg->nSpan; ++i) {
+  //   STimeWindow tw = pMsg->span[i];
+  //   if (!(pBlock->keyFirst > tw.ekey || pBlock->keyLast < tw.skey)) {
+  //     return true;
+  //   }
+  // }
+  // return false;
+  return true;
+}
+
+static int32_t tsdbFilterDataCols(STruncateH *pTruncateH, SDataCols *pSrcDCols) {
+  STruncateTblMsg *pMsg = (STruncateTblMsg *)pTruncateH->param;
+  SDataCols *      pDstDCols = pTruncateH->pDCols;
+
+  tdResetDataCols(pDstDCols);
+  pDstDCols->maxCols = pSrcDCols->maxCols;
+  pDstDCols->maxPoints = pSrcDCols->maxPoints;
+  pDstDCols->numOfCols = pSrcDCols->numOfCols;
+  pDstDCols->sversion = pSrcDCols->sversion;
+
+  for (int i = 0; i < pSrcDCols->numOfRows; ++i) {
+    int64_t tsKey = *(int64_t *)tdGetColDataOfRow(pSrcDCols->cols, i);
+    if ((tsKey >= pMsg->span[0].skey) && (tsKey <= pMsg->span[0].ekey)) {
+      printf("tsKey %" PRId64 " is filtered\n", tsKey);
+      continue;
+    }
+    for (int j = 0; j < pSrcDCols->numOfCols; ++j) {
+      if (pSrcDCols->cols[j].len > 0 || pDstDCols->cols[j].len > 0) {
+        dataColAppendVal(pDstDCols->cols + j, tdGetColDataOfRow(pSrcDCols->cols + j, i), pDstDCols->numOfRows,
+                         pDstDCols->maxPoints, 0);
+      }
+    }
+    ++pDstDCols->numOfRows;
+  }
+
+  return 0;
+}
+
 static int tsdbTruncateFSetImpl(STruncateH *pTruncateH) {
   STsdbRepo *      pRepo = TSDB_TRUNCATE_REPO(pTruncateH);
   STruncateTblMsg *pMsg = (STruncateTblMsg *)pTruncateH->param;
-  STsdbCfg *       pCfg = REPO_CFG(pRepo);
-  SReadH *         pReadh = &(pTruncateH->readh);
-  SBlockIdx        blkIdx = {0};
-  void **          ppBuf = &(TSDB_TRUNCATE_BUF(pTruncateH));
-  void **          ppCBuf = &(TSDB_TRUNCATE_COMP_BUF(pTruncateH));
-  void **          ppExBuf = &(TSDB_TRUNCATE_EXBUF(pTruncateH));
-  int              defaultRows = TSDB_DEFAULT_BLOCK_ROWS(pCfg->maxRowsPerFileBlock);
+  // STsdbCfg *       pCfg = REPO_CFG(pRepo);
+  SReadH *  pReadh = &(pTruncateH->readh);
+  SBlockIdx blkIdx = {0};
+  void **   ppBuf = &(TSDB_TRUNCATE_BUF(pTruncateH));
+  void **   ppCBuf = &(TSDB_TRUNCATE_COMP_BUF(pTruncateH));
+  void **   ppExBuf = &(TSDB_TRUNCATE_EXBUF(pTruncateH));
+  // int              defaultRows = TSDB_DEFAULT_BLOCK_ROWS(pCfg->maxRowsPerFileBlock);
 
   taosArrayClear(pTruncateH->aBlkIdx);
 
@@ -448,7 +487,12 @@ static int tsdbTruncateFSetImpl(STruncateH *pTruncateH) {
 
     taosArrayClear(pTruncateH->aSupBlk);
 
-    if ((tdInitDataCols(pTruncateH->pDataCols, pSchema) < 0) || (tdInitDataCols(pReadh->pDCols[0], pSchema) < 0) ||
+    uint64_t uid = pTblHandle->pTable->tableId.uid;
+    // if(uid != pMsg->uid) {
+    // TODO: copy the block data directly
+    // }
+
+    if ((tdInitDataCols(pTruncateH->pDCols, pSchema) < 0) || (tdInitDataCols(pReadh->pDCols[0], pSchema) < 0) ||
         (tdInitDataCols(pReadh->pDCols[1], pSchema) < 0)) {
       terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
       tdFreeSchema(pSchema);
@@ -461,49 +505,35 @@ static int tsdbTruncateFSetImpl(STruncateH *pTruncateH) {
     for (int i = 0; i < pTblHandle->pBlkIdx->numOfBlocks; ++i) {
       SBlock *pBlock = pTblHandle->pInfo->blocks + i;
 
-      // Load the block data
+      // Copy the Blocks directly if TS is not interleaved.
+      if (!tsdbBlockInterleaved(pTruncateH, pBlock)) {
+        // tsdbWriteBlockAndDataToFile();
+        continue;
+      }
+
+      // Otherwise load the block data and copy the specific rows.
       if (tsdbLoadBlockData(pReadh, pBlock, pTblHandle->pInfo) < 0) {
         return -1;
       }
+      if (uid == pMsg->uid) {
+        tsdbFilterDataCols(pTruncateH, pReadh->pDCols[0]);
+        tsdbDebug("vgId:%d uid %" PRIu64 " matched, filter block data from rows %d to %d rows", REPO_ID(pRepo), uid,
+                  pReadh->pDCols[0]->numOfRows, pTruncateH->pDCols->numOfRows);
+        if (pTruncateH->pDCols->numOfRows <= 0) continue;
 
-      // Merge pTruncateH->pDataCols and pReadh->pDCols[0] and write data to file
-      if ((pTruncateH->pDataCols->numOfRows == 0) && (pBlock->numOfRows >= defaultRows)) {
-        // if pTruncateH->pDataCols has no data and pBlock->numOfRows >= defaultRows, write data directly
-        if (tsdbWriteBlockToRightFile(pTruncateH, pTblHandle->pTable, pReadh->pDCols[0], ppBuf, ppCBuf, ppExBuf) < 0) {
+        if (tsdbWriteBlockToRightFile(pTruncateH, pTblHandle->pTable, pTruncateH->pDCols, ppBuf, ppCBuf, ppExBuf) < 0) {
           return -1;
         }
       } else {
-        int ridx = 0;
-        while (true) {
-          // no data left to merge anymore
-          if ((pReadh->pDCols[0]->numOfRows - ridx) == 0) break;
-
-          // min(data left, target space left)
-          int rowsToMerge = MIN(pReadh->pDCols[0]->numOfRows - ridx, defaultRows - pTruncateH->pDataCols->numOfRows);
-
-          tdMergeDataCols(pTruncateH->pDataCols, pReadh->pDCols[0], rowsToMerge, &ridx,
-                          pCfg->update != TD_ROW_PARTIAL_UPDATE);
-
-          if (pTruncateH->pDataCols->numOfRows < defaultRows) {
-            // continue to read more blocks
-            break;
-          }
-
-          if (tsdbWriteBlockToRightFile(pTruncateH, pTblHandle->pTable, pTruncateH->pDataCols, ppBuf, ppCBuf, ppExBuf) < 0) {
-            return -1;
-          }
-          tdResetDataCols(pTruncateH->pDataCols);
+        tsdbDebug("vgId:%d uid %" PRIu64 " not matched, copy block data directly\n", REPO_ID(pRepo), uid);
+        if (tsdbWriteBlockToRightFile(pTruncateH, pTblHandle->pTable, pReadh->pDCols[0], ppBuf, ppCBuf, ppExBuf) < 0) {
+          return -1;
         }
       }
     }
 
-    if (pTruncateH->pDataCols->numOfRows > 0 &&
-        tsdbWriteBlockToRightFile(pTruncateH, pTblHandle->pTable, pTruncateH->pDataCols, ppBuf, ppCBuf, ppExBuf) < 0) {
-      return -1;
-    }
-
-    if (tsdbWriteBlockInfoImpl(TSDB_TRUNCATE_HEAD_FILE(pTruncateH), pTblHandle->pTable, pTruncateH->aSupBlk, NULL, ppBuf,
-                               &blkIdx) < 0) {
+    if (tsdbWriteBlockInfoImpl(TSDB_TRUNCATE_HEAD_FILE(pTruncateH), pTblHandle->pTable, pTruncateH->aSupBlk, NULL,
+                               ppBuf, &blkIdx) < 0) {
       return -1;
     }
 
@@ -520,7 +550,7 @@ static int tsdbTruncateFSetImpl(STruncateH *pTruncateH) {
   return 0;
 }
 
-static int tsdbWriteBlockToRightFile(STruncateH *pTruncateH, STable *pTable, SDataCols *pDataCols, void **ppBuf,
+static int tsdbWriteBlockToRightFile(STruncateH *pTruncateH, STable *pTable, SDataCols *pDCols, void **ppBuf,
                                      void **ppCBuf, void **ppExBuf) {
   STsdbRepo *pRepo = TSDB_TRUNCATE_REPO(pTruncateH);
   STsdbCfg * pCfg = REPO_CFG(pRepo);
@@ -528,9 +558,9 @@ static int tsdbWriteBlockToRightFile(STruncateH *pTruncateH, STable *pTable, SDa
   bool       isLast = false;
   SBlock     block = {0};
 
-  ASSERT(pDataCols->numOfRows > 0);
+  ASSERT(pDCols->numOfRows > 0);
 
-  if (pDataCols->numOfRows < pCfg->minRowsPerFileBlock) {
+  if (pDCols->numOfRows < pCfg->minRowsPerFileBlock) {
     pDFile = TSDB_TRUNCATE_LAST_FILE(pTruncateH);
     isLast = true;
   } else {
@@ -539,7 +569,7 @@ static int tsdbWriteBlockToRightFile(STruncateH *pTruncateH, STable *pTable, SDa
   }
 
   if (tsdbWriteBlockImpl(pRepo, pTable, pDFile,
-                         isLast ? TSDB_TRUNCATE_SMAL_FILE(pTruncateH) : TSDB_TRUNCATE_SMAD_FILE(pTruncateH), pDataCols,
+                         isLast ? TSDB_TRUNCATE_SMAL_FILE(pTruncateH) : TSDB_TRUNCATE_SMAD_FILE(pTruncateH), pDCols,
                          &block, isLast, true, ppBuf, ppCBuf, ppExBuf) < 0) {
     return -1;
   }
@@ -550,4 +580,34 @@ static int tsdbWriteBlockToRightFile(STruncateH *pTruncateH, STable *pTable, SDa
   }
 
   return 0;
-}
\ No newline at end of file
+}
+
+// static int tsdbWriteBlockAndDataToFile(STruncateH *pTruncateH, STable *pTable, SBlock *pSupBlock, void **ppBuf,
+//                                        void **ppCBuf, void **ppExBuf) {
+//   STsdbRepo *pRepo = TSDB_TRUNCATE_REPO(pTruncateH);
+//   SDFile *   pDFile = NULL;
+//   bool       isLast = false;
+
+//   ASSERT(pSupBlock->numOfRows > 0);
+
+//   if (pSupBlock->last) {
+//     pDFile = TSDB_TRUNCATE_LAST_FILE(pTruncateH);
+//     isLast = true;
+//   } else {
+//     pDFile = TSDB_TRUNCATE_DATA_FILE(pTruncateH);
+//     isLast = false;
+//   }
+
+//   if (tsdbWriteBlockImpl(pRepo, pTable, pDFile,
+//                          isLast ? TSDB_TRUNCATE_SMAL_FILE(pTruncateH) : TSDB_TRUNCATE_SMAD_FILE(pTruncateH),
+//                          pDCols, &block, isLast, true, ppBuf, ppCBuf, ppExBuf) < 0) {
+//     return -1;
+//   }
+
+//   if (taosArrayPush(pTruncateH->aSupBlk, (void *)(&block)) == NULL) {
+//     terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+//     return -1;
+//   }
+
+//   return 0;
+// }
\ No newline at end of file
diff --git a/src/vnode/src/vnodeMain.c b/src/vnode/src/vnodeMain.c
index e7697a7e0fbf37e2348c60bc651de8071820edaa..d5d4cc4c2e5a0e9d9a6019c4e08565217a2b7394 100644
--- a/src/vnode/src/vnodeMain.c
+++ b/src/vnode/src/vnodeMain.c
@@ -143,10 +143,10 @@ int32_t vnodeTruncate(STruncateTblMsg *pMsg) {
     // not care success or not
     STruncateTblMsg *param = (STruncateTblMsg *)calloc(1, sizeof(STruncateTblMsg) + pMsg->nSpan * sizeof(STimeWindow));
     param->vgId = 2;
-    param->uid = 562949986978794;
+    param->uid = 562949986979009;
     param->nSpan = 1;
-    param->span[0].skey = 1637417678000;
-    param->span[0].ekey = 1637417679000;
+    param->span[0].skey = 1634701320001;
+    param->span[0].ekey = 1634701320001;
     if (tsdbTruncate(((SVnodeObj *)pVnode)->tsdb, param) < 0) {
       tfree(param);
     }