exports.up = function (knex) {
    return knex.schema.createTable('messages', function (table) {
        table.increments('message_id').primary()
        table.integer('user_id').notNullable()
        table.integer('grouping_id').notNullable()
        table.string('message', 255).notNullable()
    })
}

exports.down = function (knex) {
    return knex.schema.dropTable('messages')
}