Javascript 2或子类别。类别_id=1； [{类别id:1}，{类别id:2}]

检查数据库：

节点续集示例=从子类别中选择*； 类别识别码 ------- 1. 2. 3. 3排

"sub_categories":[
        {
            "category_id":2
        },
        {
            "category_id":1
        }

    ]

var where = []
if (subcategories != undefined && subcategories.length) {
    subcategories.forEach(async (item) => {
        where.push({
            '$subcategories.id$': item.id
        })
    });
}

SELECT * FROM TABLE where ( sub_categories .category_id = 1 OR sub_categories .category_id = 2)

SELECT * FROM TABLE where sub_categories .category_id = 2 AND sub_categories .category_id = 2)

var where = {}
if (subcategories != undefined && subcategories.length) {
   where['$or'] = []
    subcategories.forEach((item) => {
        where['$or'].push({
           '$subcategories.id$': item.category_id
        })
    });
}
...
const result = await db.someModel.findAll({ where })