module.exports = { up: async (queryInterface, Sequelize) => { const [teams, metaData] = await queryInterface.sequelize.query(`SELECT * FROM teams`); const teamIds = teams.map(team => team.id); await Promise.all(teamIds.map(async teamId => { await queryInterface.sequelize.query(` update users set "isAdmin" = true where id in ( select id from users where "teamId" = '${teamId}' order by "createdAt" asc limit 1 ); `); })); }, down: async (queryInterface, Sequelize) => { // no-op }, };