exports.up = function(knex) {
  return knex.schema
    .table('da', async function (table) {
      table.renameColumn('db_TrainerSelected', 'db_trainerSelected');
    })

};

exports.down = function(knex) {
  return knex.schema
    .table('da', async function (table) {
      table.renameColumn('db_trainerSelected', 'db_TrainerSelected');
    })
};