{
    "summary": [
        {
            "name": "orders",
            "title": "订单表",
            "primary": "id",
            "catelog": "entity"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "订单ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "主键 - UUID格式"
        },
        {
            "name": "order_number",
            "title": "订单编号",
            "type": "str",
            "length": 50,
            "nullable": "no",
            "comments": "订单编号，唯一标识"
        },
        {
            "name": "contract_id",
            "title": "合同ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "关联的合同ID"
        },
        {
            "name": "customer_id",
            "title": "客户ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "客户ID"
        },
        {
            "name": "order_type",
            "title": "订单类型",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "comments": "订单类型：advance=预付款, progress=进度款, final=尾款, other=其他"
        },
        {
            "name": "delivery_batch",
            "title": "交付批次",
            "type": "str",
            "length": 100,
            "nullable": "yes",
            "comments": "交付批次，如'Q3季度服务交付'"
        },
        {
            "name": "acceptance_deadline",
            "title": "验收截止日期",
            "type": "date",
            "nullable": "yes",
            "comments": "验收截止日期"
        },
        {
            "name": "amount",
            "title": "订单金额",
            "type": "decimal",
            "length": 15,
            "dec": 2,
            "nullable": "no",
            "comments": "该订单的金额"
        },
        {
            "name": "paid_amount",
            "title": "已付金额",
            "type": "decimal",
            "length": 15,
            "dec": 2,
            "nullable": "no",
            "default": "0.00",
            "comments": "已支付金额"
        },
        {
            "name": "tax_rate",
            "title": "税率",
            "type": "decimal",
            "length": 5,
            "dec": 4,
            "nullable": "no",
            "default": "0.1300",
            "comments": "税率"
        },
        {
            "name": "credit_period",
            "title": "账期要求",
            "type": "long",
            "nullable": "yes",
            "comments": "账期天数要求"
        },
        {
            "name": "status",
            "title": "订单状态",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "default": "active",
            "comments": "状态：active=活跃, completed=完成, cancelled=取消"
        },
        {
            "name": "description",
            "title": "描述",
            "type": "text",
            "nullable": "yes",
            "comments": "订单详细描述"
        },
        {
            "name": "created_at",
            "title": "创建时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "创建时间"
        },
        {
            "name": "updated_at",
            "title": "更新时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "最后更新时间"
        },
        {
            "name": "owner_id",
            "title": "负责人ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "订单负责人ID"
        },
        {
            "name": "org_id",
            "title": "所属组织",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "所属组织ID"
        }
    ],
    "indexes": [
        {
            "name": "idx_orders_number",
            "idxtype": "unique",
            "idxfields": ["order_number"]
        },
        {
            "name": "idx_orders_contract",
            "idxtype": "index",
            "idxfields": ["contract_id"]
        },
        {
            "name": "idx_orders_customer",
            "idxtype": "index",
            "idxfields": ["customer_id"]
        },
        {
            "name": "idx_orders_status",
            "idxtype": "index",
            "idxfields": ["status"]
        },
        {
            "name": "idx_orders_owner",
            "idxtype": "index",
            "idxfields": ["owner_id"]
        }
    ]
}