text: 
  exports.up = function(knex, Promise) {
      return knex.schema.table('auctions', function(t) {
          t.text('status').notNull().defaultTo('active');
      });
  };
  
  exports.down = function(knex, Promise) {
    return knex.schema.table('auctions', function(t) {
        t.dropColumn('status');
    })
  };
  