[TD-13062]<fix>: file system add stream.

source/os/src/osFile.c

@@ -324,7 +324,7 @@ int64_t taosWriteFile(TdFilePtr pFile, const void *buf, int64_t count) {
     nleft -= nwritten;
     tbuf += nwritten;
   }
-
+  fdatasync(pFile->fd);
   return count;
 }