diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 889d8a55b411105d4f43025dd23ed00f10583d7d..1b6a6c21a977e22bb9583b31e73f3ee7b710ca04 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -1781,7 +1781,6 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int32_t numOfRow
   }
 
   int32_t extendedRowSize = getExtendedRowSize(pTableDataBlock);
-
   tscAllocateMemIfNeed(pTableDataBlock, extendedRowSize, &maxRows);
   tokenBuf = calloc(1, TSDB_MAX_BYTES_PER_ROW);
   if (tokenBuf == NULL) {
@@ -1789,9 +1788,9 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int32_t numOfRow
     goto _error;
   }
 
-  --maxRows;  // 1 more row needed to facilitate the SDataRow/SKVRow convert
-  ASSERT(maxRows > 0);
-
+  // insert from .csv means full and ordered columns, thus use SDataRow all the time and no need to covert
+  ASSERT(SMEM_ROW_DATA == pTableDataBlock->rowBuilder.memRowType &&
+         ROW_COMPARE_NO_NEED == pTableDataBlock->rowBuilder.compareStat);
   int32_t convertOffset = 0;
   while ((readLen = tgetline(&line, &n, fp)) != -1) {
     if (('\r' == line[readLen - 1]) || ('\n' == line[readLen - 1])) {
@@ -1818,10 +1817,6 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int32_t numOfRow
       break;
     }
   }
-  if (convertOffset) {
-    char *convertedSMemRow = pTableDataBlock->pData + pTableDataBlock->size;
-    memcpy(convertedSMemRow - convertOffset * extendedRowSize, convertedSMemRow, (size_t)memRowTLen(convertedSMemRow));
-  }
 
   tfree(tokenBuf);
   tfree(line);