{
    "summary": [
        {
            "name": "opportunities",
            "title": "商机表",
            "primary": "id",
            "catelog": "entity"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "商机ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "主键 - UUID格式"
        },
        {
            "name": "customer_name",
            "title": "客户名称",
            "type": "str",
            "length": 255,
            "nullable": "no",
            "comments": "客户公司或个人名称"
        },
        {
            "name": "estimated_amount",
            "title": "预估金额",
            "type": "decimal",
            "length": 15,
            "dec": 2,
            "nullable": "no",
            "default": "0.00",
            "comments": "预估成交金额"
        },
        {
            "name": "current_stage",
            "title": "当前销售阶段",
            "type": "str",
            "length": 50,
            "nullable": "no",
            "comments": "当前所处的销售阶段"
        },
        {
            "name": "expected_close_date",
            "title": "预计成交时间",
            "type": "date",
            "nullable": "no",
            "comments": "预计成交日期"
        },
        {
            "name": "source_type",
            "title": "来源类型",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "default": "manual",
            "comments": "商机来源：manual=手动录入, lead=线索转化"
        },
        {
            "name": "owner_id",
            "title": "负责人ID",
            "type": "str",
            "length": 32,
            "nullable": "no",
            "comments": "负责该商机的销售人员ID"
        },
        {
            "name": "region",
            "title": "区域",
            "type": "str",
            "length": 100,
            "nullable": "yes",
            "comments": "客户所在区域"
        },
        {
            "name": "created_at",
            "title": "创建时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "商机创建时间"
        },
        {
            "name": "updated_at",
            "title": "更新时间",
            "type": "timestamp",
            "nullable": "no",
            "comments": "最后更新时间"
        },
        {
            "name": "status",
            "title": "状态",
            "type": "str",
            "length": 20,
            "nullable": "no",
            "default": "active",
            "comments": "商机状态：active=活跃, won=成交, lost=丢单"
        }
    ],
    "indexes": [
        {
            "name": "idx_opportunities_customer",
            "idxtype": "index",
            "idxfields": ["customer_name"]
        },
        {
            "name": "idx_opportunities_owner",
            "idxtype": "index",
            "idxfields": ["owner_id"]
        },
        {
            "name": "idx_opportunities_stage",
            "idxtype": "index",
            "idxfields": ["current_stage"]
        },
        {
            "name": "idx_opportunities_region",
            "idxtype": "index",
            "idxfields": ["region"]
        },
        {
            "name": "idx_opportunities_status",
            "idxtype": "index",
            "idxfields": ["status"]
        }
    ]
}