ALTER TABLE `better_seo_i18n`
 ADD `mesh_1` TEXT NOT NULL AFTER `mesh_url_5`,
 ADD `mesh_2` TEXT NOT NULL AFTER `mesh_1`,
  ADD `mesh_3` TEXT NOT NULL AFTER `mesh_2`,
   ADD `mesh_4` TEXT NOT NULL AFTER `mesh_3`,
    ADD `mesh_5` TEXT NOT NULL AFTER `mesh_4`;