diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index 7f35cf0ea5080cbb49db3a78b7d53df58cb9724c..c664c4991d9aeb8166b9d030cf6b3db58ce52ebd 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -531,14 +531,15 @@ static FORCE_INLINE int32_t getExtendedRowSize(STableDataBlocks *pBlock) {
   return pBlock->rowSize + TD_MEM_ROW_DATA_HEAD_SIZE + pBlock->boundColumnInfo.extendedVarLen;
 }
 
-static FORCE_INLINE void checkAndConvertMemRow(SMemRow row, int32_t dataLen, int32_t kvLen) {
+static FORCE_INLINE bool checkAndConvertMemRow(SMemRow row, int32_t dataLen, int32_t kvLen) {
   if (isDataRow(row)) {
     if (kvLen < (dataLen * KVRatioConvert)) {
-      memRowSetConvert(row);
+      return true;
     }
   } else if (kvLen > dataLen) {
-    memRowSetConvert(row);
+    return true;
   }
+  return false;
 }
 
 static FORCE_INLINE void initSMemRow(SMemRow row, uint8_t memRowType, STableDataBlocks *pBlock, int16_t nBoundCols) {
diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 94f9a3018aae175f0f27c1c24b735f5a0392102d..76f05ad99a97b4752b6f982711af2f8b6ccda61b 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -444,12 +444,14 @@ int32_t tsCheckTimestamp(STableDataBlocks *pDataBlocks, const char *start) {
   return TSDB_CODE_SUCCESS;
 }
 
-int tsParseOneRow(char **str, STableDataBlocks *pDataBlocks, int16_t timePrec, int32_t *len, char *tmpTokenBuf,
-                  SInsertStatementParam *pInsertParam) {
+int tsParseOneRow(char **str, STableDataBlocks *pDataBlocks, int16_t timePrec, bool *isConverted, int32_t rowSize,
+                  char *tmpTokenBuf, SInsertStatementParam *pInsertParam) {
   int32_t   index = 0;
   SStrToken sToken = {0};
 
-  char *row = pDataBlocks->pData + pDataBlocks->size;  // skip the SSubmitBlk header
+  char *row = pDataBlocks->pData +
+              ((*isConverted) ? (pDataBlocks->size - rowSize) : pDataBlocks->size);  // skip the SSubmitBlk header
+  *isConverted = false;
 
   SParsedDataColInfo *spd = &pDataBlocks->boundColumnInfo;
   STableMeta *        pTableMeta = pDataBlocks->pTableMeta;
@@ -550,12 +552,13 @@ int tsParseOneRow(char **str, STableDataBlocks *pDataBlocks, int16_t timePrec, i
 
   if (!isParseBindParam) {
     // 2. check and set convert flag
+    bool isNeedConvertRow = false;
     if (pBuilder->compareStat == ROW_COMPARE_NEED) {
-      checkAndConvertMemRow(row, dataLen, kvLen);
+      isNeedConvertRow = checkAndConvertMemRow(row, dataLen, kvLen);
     }
 
     // 3. set the null value for the columns that do not assign values
-    if ((spd->numOfBound < spd->numOfCols) && isDataRow(row) && !isNeedConvertRow(row)) {
+    if ((spd->numOfBound < spd->numOfCols) && isDataRow(row) && !isNeedConvertRow) {
       SDataRow dataRow = memRowDataBody(row);
       for (int32_t i = 0; i < spd->numOfCols; ++i) {
         if (spd->cols[i].valStat == VAL_STAT_NONE) {
@@ -563,9 +566,14 @@ int tsParseOneRow(char **str, STableDataBlocks *pDataBlocks, int16_t timePrec, i
         }
       }
     }
-  }
 
-  *len = getExtendedRowSize(pDataBlocks);
+    // 4. perform the convert
+    if (isNeedConvertRow) {
+      // put converted row to next location to minimize the memcpy
+      convertSMemRow(row + rowSize, row, pDataBlocks);
+      *isConverted = true;
+    }
+  }
 
   return TSDB_CODE_SUCCESS;
 }
@@ -623,13 +631,15 @@ int32_t tsParseValues(char **str, STableDataBlocks *pDataBlock, int maxRows, SIn
                                 pDataBlock->boundColumnInfo.allNullLen))) {
     return code;
   }
+  bool isConverted = false;
   while (1) {
     index = 0;
     sToken = tStrGetToken(*str, &index, false);
     if (sToken.n == 0 || sToken.type != TK_LP) break;
 
     *str += index;
-    if ((*numOfRows) >= maxRows || pDataBlock->size + extendedRowSize >= pDataBlock->nAllocSize) {
+    // allocate 1 more row size to facilitate the SDataRow/SKVRow convert
+    if ((*numOfRows + 1) >= maxRows || pDataBlock->size + extendedRowSize >= pDataBlock->nAllocSize) {
       int32_t tSize;
       code = tscAllocateMemIfNeed(pDataBlock, extendedRowSize, &tSize);
       if (code != TSDB_CODE_SUCCESS) {  //TODO pass the correct error code to client
@@ -637,17 +647,16 @@ int32_t tsParseValues(char **str, STableDataBlocks *pDataBlock, int maxRows, SIn
         return TSDB_CODE_TSC_OUT_OF_MEMORY;
       }
 
-      ASSERT(tSize >= maxRows);
+      ASSERT(tSize > maxRows);  // 1 more row allocated
       maxRows = tSize;
     }
 
-    int32_t len = 0;
-    code = tsParseOneRow(str, pDataBlock, precision, &len, tmpTokenBuf, pInsertParam);
+    code = tsParseOneRow(str, pDataBlock, precision, &isConverted, extendedRowSize, tmpTokenBuf, pInsertParam);
     if (code != TSDB_CODE_SUCCESS) {  // error message has been set in tsParseOneRow, return directly
       return TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
     }
 
-    pDataBlock->size += len;
+    pDataBlock->size += extendedRowSize;
 
     index = 0;
     sToken = tStrGetToken(*str, &index, false);
@@ -659,6 +668,10 @@ int32_t tsParseValues(char **str, STableDataBlocks *pDataBlock, int maxRows, SIn
 
     (*numOfRows)++;
   }
+  if (isConverted) {
+    void *convertedSMemRow = pDataBlock->pData + pDataBlock->size;
+    memcpy(convertedSMemRow - extendedRowSize, convertedSMemRow, memRowTLen(convertedSMemRow));
+  }
 
   if ((*numOfRows) <= 0) {
     strcpy(pInsertParam->msg, "no any data points");
@@ -1754,13 +1767,19 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int32_t numOfRow
     goto _error;
   }
 
-  tscAllocateMemIfNeed(pTableDataBlock, getExtendedRowSize(pTableDataBlock), &maxRows);
+  int32_t extendedRowSize = getExtendedRowSize(pTableDataBlock);
+
+  tscAllocateMemIfNeed(pTableDataBlock, extendedRowSize, &maxRows);
   tokenBuf = calloc(1, TSDB_MAX_BYTES_PER_ROW);
   if (tokenBuf == NULL) {
     code = TSDB_CODE_TSC_OUT_OF_MEMORY;
     goto _error;
   }
 
+  --maxRows;  // 1 more row needed to facilitate the SDataRow/SKVRow convert
+  ASSERT(maxRows > 0);
+
+  bool isConverted = false;
   while ((readLen = tgetline(&line, &n, fp)) != -1) {
     if (('\r' == line[readLen - 1]) || ('\n' == line[readLen - 1])) {
       line[--readLen] = 0;
@@ -1773,19 +1792,23 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int32_t numOfRow
     char *lineptr = line;
     strtolower(line, line);
 
-    int32_t len = 0;
-    code = tsParseOneRow(&lineptr, pTableDataBlock, tinfo.precision, &len, tokenBuf, pInsertParam);
+    code = tsParseOneRow(&lineptr, pTableDataBlock, tinfo.precision, &isConverted, extendedRowSize, tokenBuf,
+                         pInsertParam);
     if (code != TSDB_CODE_SUCCESS || pTableDataBlock->numOfParams > 0) {
       pSql->res.code = code;
       break;
     }
 
-    pTableDataBlock->size += len;
+    pTableDataBlock->size += extendedRowSize;
 
     if (++count >= maxRows) {
       break;
     }
   }
+  if (isConverted) {
+    void *convertedSMemRow = pTableDataBlock->pData + pTableDataBlock->size;
+    memcpy(convertedSMemRow - extendedRowSize, convertedSMemRow, memRowTLen(convertedSMemRow));
+  }
 
   tfree(tokenBuf);
   tfree(line);
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index e6c4e12e34cee28b0402fe3104d298a4080e6e1c..a36562371899d718c00edaa230eebbba62f1723a 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -2018,18 +2018,11 @@ static int trimDataBlock(void* pDataBlock, STableDataBlocks* pTableDataBlock, SI
     }
   } else {
     for (int32_t i = 0; i < numOfRows; ++i) {
-      char* payload = (blkKeyTuple + i)->payloadAddr;
-      if (isNeedConvertRow(payload)) {
-        convertSMemRow(pDataBlock, payload, pTableDataBlock);
-        TDRowTLenT rowTLen = memRowTLen(pDataBlock);
-        pDataBlock = POINTER_SHIFT(pDataBlock, rowTLen);
-        pBlock->dataLen += rowTLen;
-      } else {
-        TDRowTLenT rowTLen = memRowTLen(payload);
-        memcpy(pDataBlock, payload, rowTLen);
-        pDataBlock = POINTER_SHIFT(pDataBlock, rowTLen);
-        pBlock->dataLen += rowTLen;
-      }
+      char*      payload = (blkKeyTuple + i)->payloadAddr;
+      TDRowTLenT rowTLen = memRowTLen(payload);
+      memcpy(pDataBlock, payload, rowTLen);
+      pDataBlock = POINTER_SHIFT(pDataBlock, rowTLen);
+      pBlock->dataLen += rowTLen;
     }
   }