module.exports = { up: async (queryInterface, Sequelize) => { await queryInterface.removeConstraint('users', 'users_email_key', {}) await queryInterface.removeConstraint('users', 'users_username_key', {}) }, down: async (queryInterface, Sequelize) => { await queryInterface.changeColumn('users', 'email', { type: Sequelize.STRING, unique: true, allowNull: false, }); await queryInterface.changeColumn('users', 'username', { type: Sequelize.STRING, unique: true, allowNull: false, }); }, };