是否可以对总和，计数，分组依据进行排序，还是应该使用sequelize.query选项？

Question

Can Sequelize sum, count, group by or should I use sequelize.query option?

select count(col1), sum(col2) from my_table
group by col1

Answer 1

Of course you can.

Model.findAll({
  attributes: [
       [db.sequelize.fn('count', db.sequelize.col('col1'), 'col1')],
       [db.sequelize.fn('sum', db.sequelize.col('col2'), 'col2')]
  ],
  group: ['col1']
});