diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index 4ead7d41801c9ccf0b1e3c5fe69a439629802bbb..99ed0822368cc0126f8c152506cdb139c16ceb5b 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -123,17 +123,15 @@ typedef struct {
   int32_t kvLen;    // len of SKVRow
 } SMemRowInfo;
 typedef struct {
-  uint8_t      memRowType;
-  uint8_t      compareStat;  // 0 unknown, 1 need compare, 2 no need
-  TDRowTLenT   dataRowInitLen;
+  uint8_t      memRowType;   // default is 0, that is SDataRow 
+  uint8_t      compareStat;  // 0 no need, 1 need compare
   TDRowTLenT   kvRowInitLen;
   SMemRowInfo *rowInfo;
 } SMemRowBuilder;
 
 typedef enum {
-  ROW_COMPARE_UNKNOWN = 0,
+  ROW_COMPARE_NO_NEED = 0,
   ROW_COMPARE_NEED = 1,
-  ROW_COMPARE_NO_NEED = 2,
 } ERowCompareStat;
 
 int tsParseTime(SStrToken *pToken, int64_t *time, char **next, char *error, int16_t timePrec);
diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 89e3832007f11dc0ede00e639d75875f142b12f1..f5d9a6a17e1cf6784355d7e7b6f198dcc1fb9248 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -51,20 +51,18 @@ int            initMemRowBuilder(SMemRowBuilder *pBuilder, uint32_t nRows, uint3
     }
   }
 
+  // default compareStat is  ROW_COMPARE_NO_NEED
   if (nBoundCols == 0) {  // file input
     pBuilder->memRowType = SMEM_ROW_DATA;
-    pBuilder->compareStat = ROW_COMPARE_NO_NEED;
     return TSDB_CODE_SUCCESS;
   } else {
     float boundRatio = ((float)nBoundCols / (float)nCols);
 
     if (boundRatio < KVRatioKV) {
       pBuilder->memRowType = SMEM_ROW_KV;
-      pBuilder->compareStat = ROW_COMPARE_NO_NEED;
       return TSDB_CODE_SUCCESS;
     } else if (boundRatio > KVRatioData) {
       pBuilder->memRowType = SMEM_ROW_DATA;
-      pBuilder->compareStat = ROW_COMPARE_NO_NEED;
       return TSDB_CODE_SUCCESS;
     }
     pBuilder->compareStat = ROW_COMPARE_NEED;
@@ -76,7 +74,6 @@ int            initMemRowBuilder(SMemRowBuilder *pBuilder, uint32_t nRows, uint3
     }
   }
 
-  pBuilder->dataRowInitLen = TD_MEM_ROW_DATA_HEAD_SIZE + allNullLen;
   pBuilder->kvRowInitLen = TD_MEM_ROW_KV_HEAD_SIZE + nBoundCols * sizeof(SColIdx);
 
   if (nRows > 0) {
@@ -86,7 +83,7 @@ int            initMemRowBuilder(SMemRowBuilder *pBuilder, uint32_t nRows, uint3
     }
 
     for (int i = 0; i < nRows; ++i) {
-      (pBuilder->rowInfo + i)->dataLen = pBuilder->dataRowInitLen;
+      (pBuilder->rowInfo + i)->dataLen = TD_MEM_ROW_DATA_HEAD_SIZE + allNullLen;
       (pBuilder->rowInfo + i)->kvLen = pBuilder->kvRowInitLen;
     }
   }
@@ -460,7 +457,7 @@ int tsParseOneRow(char **str, STableDataBlocks *pDataBlocks, int16_t timePrec, i
   STableMeta *        pTableMeta = pDataBlocks->pTableMeta;
   SSchema *           schema = tscGetTableSchema(pTableMeta);
   SMemRowBuilder *    pBuilder = &pDataBlocks->rowBuilder;
-  int32_t             dataLen = pBuilder->dataRowInitLen;
+  int32_t             dataLen = spd->allNullLen + TD_MEM_ROW_DATA_HEAD_SIZE;
   int32_t             kvLen = pBuilder->kvRowInitLen;
   bool                isParseBindParam = false;
 
@@ -809,13 +806,12 @@ int tscSortRemoveDataBlockDupRows(STableDataBlocks *dataBuf, SBlockKeyInfo *pBlk
   // allocate memory
   size_t nAlloc = nRows * sizeof(SBlockKeyTuple);
   if (pBlkKeyInfo->pKeyTuple == NULL || pBlkKeyInfo->maxBytesAlloc < nAlloc) {
-    size_t nRealAlloc = nAlloc + 10 * sizeof(SBlockKeyTuple);
-    char * tmp = trealloc(pBlkKeyInfo->pKeyTuple, nRealAlloc);
+    char *tmp = trealloc(pBlkKeyInfo->pKeyTuple, nAlloc);
     if (tmp == NULL) {
       return TSDB_CODE_TSC_OUT_OF_MEMORY;
     }
     pBlkKeyInfo->pKeyTuple = (SBlockKeyTuple *)tmp;
-    pBlkKeyInfo->maxBytesAlloc = (int32_t)nRealAlloc;
+    pBlkKeyInfo->maxBytesAlloc = (int32_t)nAlloc;
   }
   memset(pBlkKeyInfo->pKeyTuple, 0, nAlloc);
 
@@ -1697,7 +1693,7 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int32_t numOfRow
   STableMeta *    pTableMeta = pTableMetaInfo->pTableMeta;
   STableComInfo   tinfo = tscGetTableInfo(pTableMeta);
 
-  SInsertStatementParam* pInsertParam = &pCmd->insertParam;
+  SInsertStatementParam *pInsertParam = &pCmd->insertParam;
   destroyTableNameList(pInsertParam);
 
   pInsertParam->pDataBlocks = tscDestroyBlockArrayList(pInsertParam->pDataBlocks);
@@ -1726,12 +1722,6 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int32_t numOfRow
     goto _error;
   }
 
-  if (TSDB_CODE_SUCCESS !=
-      (ret = initMemRowBuilder(&pTableDataBlock->rowBuilder, 0, tinfo.numOfColumns, pTableDataBlock->numOfParams,
-                               pTableDataBlock->boundColumnInfo.allNullLen))) {
-    goto _error;
-  }
-
   while ((readLen = tgetline(&line, &n, fp)) != -1) {
     if (('\r' == line[readLen - 1]) || ('\n' == line[readLen - 1])) {
       line[--readLen] = 0;