exports.up = async function(knex, Promise) {
  if (! await knex.schema.hasTable("updates")) {
    await knex.schema.createTable("updates", table => {
      table.string("available_version", 16).nullable();
      table.dateTime("last_checked").nullable();
    });
  }
};

exports.down = async function(knex, Promise) {
  if (await knex.schema.hasTable("updates")) {
    await knex.schema.dropTable("updates");
  }
};