如何正确编写此查询

Question

我正在尝试在 Sequelize 中执行此查询，但出现错误

查询

LineItem.findAll(
        {
            attributes: [
                "orderId",
                [fn("sum", col("quantity")), "quantity"]
            ],
            include: [{
                model: Order,
                as: "lineItems",
                attributes: ["invoiceId"]
            }],
            group: ["orderId"],
            raw: true
        });

错误

column \"lineItems.invoice_id\" must appear in the GROUP BY clause or be used in an aggregate function

Answer 1

您有两个选择，但首先您必须回答这个问题：您的查询中是否需要 invoiceId 列？

如果你的答案是肯定的，试试吧：

LineItem.findAll({
  attributes: ['orderId', [fn('sum', col('quantity')), 'quantity']],
  include: [
    {
      model: Order,
      as: 'lineItems',
      attributes: ['invoiceId'],
    },
  ],
  group: ['orderId', 'invoiceId'],
  raw: true,
});

如果你的答案是否定的，试试看：

LineItem.findAll({
  attributes: ['orderId', [fn('sum', col('quantity')), 'quantity']],
  include: [
    {
      model: Order,
      as: 'lineItems',
    },
  ],
  group: ['orderId'],
  raw: true,
});