diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index c2ce81992c322b253aeec48601823be34eebb46c..df4ccca9bc6e106f50e5999ceaa652bd4e4c54cd 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -1475,88 +1475,6 @@ static void parseFileSendDataBlock(void *param, TAOS_RES *tres, int code) {
   }
 }
 
-static UNUSED_FUNC int tscInsertDataFromFile(SSqlObj *pSql, FILE *fp, char *tmpTokenBuf) {
-  size_t          readLen = 0;
-  char *          line = NULL;
-  int32_t         maxRows = 0;
-  SSqlCmd *       pCmd = &pSql->cmd;
-  int             numOfRows = 0;
-  int32_t         code = 0;
-
-  STableMetaInfo *pTableMetaInfo = tscGetTableMetaInfoFromCmd(pCmd, pCmd->clauseIndex, 0);
-  STableMeta *    pTableMeta = pTableMetaInfo->pTableMeta;
-  STableComInfo tinfo = tscGetTableInfo(pTableMeta);
-  
-  assert(pCmd->numOfClause == 1);
-  
-  int32_t rowSize = tinfo.rowSize;
-
-  pCmd->pDataBlocks = taosArrayInit(4, POINTER_BYTES);
-  STableDataBlocks *pTableDataBlock = NULL;
-
-  int32_t ret = tscCreateDataBlock(TSDB_PAYLOAD_SIZE, rowSize, sizeof(SSubmitBlk), pTableMetaInfo->name, pTableMeta, &pTableDataBlock);
-  if (ret != TSDB_CODE_SUCCESS) {
-    return ret;
-  }
-
-  taosArrayPush(pCmd->pDataBlocks, &pTableDataBlock);
-
-  code = tscAllocateMemIfNeed(pTableDataBlock, rowSize, &maxRows);
-  if (TSDB_CODE_SUCCESS != code) return -1;
-
-  int                count = 0;
-  SParsedDataColInfo spd = {.numOfCols = tinfo.numOfColumns};
-  SSchema *          pSchema = tscGetTableSchema(pTableMeta);
-
-  tscSetAssignedColumnInfo(&spd, pSchema, tinfo.numOfColumns);
-
-  size_t n = 0;
-  while ((readLen = getline(&line, &n, fp)) != -1) {
-    // line[--readLen] = '\0';
-    if (('\r' == line[readLen - 1]) || ('\n' == line[readLen - 1])) line[--readLen] = 0;
-    if (readLen == 0) continue;  // fang, <= to ==
-
-    char *lineptr = line;
-    strtolower(line, line);
-    
-    int32_t len = tsParseOneRowData(&lineptr, pTableDataBlock, pSchema, &spd, pCmd->payload, tinfo.precision, &code, tmpTokenBuf);
-    if (len <= 0 || pTableDataBlock->numOfParams > 0) {
-      pSql->res.code = code;
-      return code;
-    }
-
-    pTableDataBlock->size += len;
-
-    count++;
-    if (count >= maxRows) {
-      if ((code = doPackSendDataBlock(pSql, count, pTableDataBlock)) != TSDB_CODE_SUCCESS) {
-        return code;
-      }
-
-      pTableDataBlock = taosArrayGetP(pCmd->pDataBlocks, 0);
-      pTableDataBlock->size = sizeof(SSubmitBlk);
-      pTableDataBlock->rowSize = tinfo.rowSize;
-
-      numOfRows += pSql->res.numOfRows;
-      pSql->res.numOfRows = 0;
-      count = 0;
-    }
-  }
-
-  if (count > 0) {
-    if ((code = doPackSendDataBlock(pSql, count, pTableDataBlock)) != TSDB_CODE_SUCCESS) {
-      return code;
-    }
-
-    numOfRows += pSql->res.numOfRows;
-    pSql->res.numOfRows = 0;
-  }
-
-  if (line) tfree(line);
-
-  return numOfRows;
-}
-
 void tscProcessMultiVnodesImportFromFile(SSqlObj *pSql) {
   SSqlCmd *pCmd = &pSql->cmd;
   if (pCmd->command != TSDB_SQL_INSERT) {