const Knex = require('knex');

/**
 * @param {Knex} knex
 */
exports.up = async function(knex) {
  await knex.schema.table('thread_messages', table => {
    table.integer('message_number').unsigned().nullable();
  });
};

/**
 * @param {Knex} knex
 */
exports.down = async function(knex) {
  await knex.schema.table('thread_messages', table => {
    table.dropColumn('message_number');
  });
};