exports.up = async (knex) => { await knex.schema.alterTable('user', (table) => { table.dropColumn('unsubkey'); }); await knex.schema.alterTable('user', (table) => { table.string("unsubkey", 32).defaultTo("").notNullable(); }); }; exports.down = async (knex) => { await knex.schema.dropTable('user'); };