{
    "summary": [
        {
            "name": "opp_demand_snap",
            "title": "需求快照",
            "primary": [
                "id"
            ],
            "catelog": "entity"
        }
    ],
    "fields": [
        {
            "name": "id",
            "title": "主键ID",
            "type": "str",
            "length": 32,
            "nullable": "no"
        },
        {
            "name": "batch_id",
            "title": "批次ID",
            "type": "str",
            "length": 32,
            "nullable": "no"
        },
        {
            "name": "org_id",
            "title": "机构ID",
            "type": "str",
            "length": 32,
            "nullable": "no"
        },
        {
            "name": "src_id",
            "title": "爬虫平台需求ID(去重键)",
            "type": "str",
            "length": 64,
            "nullable": "no"
        },
        {
            "name": "source",
            "title": "数据来源(zbj/epwk/freelancer/pph)",
            "type": "str",
            "length": 32
        },
        {
            "name": "title",
            "title": "需求标题",
            "type": "str",
            "length": 500,
            "nullable": "no"
        },
        {
            "name": "item_category",
            "title": "站内类目",
            "type": "str",
            "length": 128
        },
        {
            "name": "budget_wan",
            "title": "预算(万元)",
            "type": "double",
            "length": 15,
            "dec": 2
        },
        {
            "name": "url",
            "title": "需求原文链接",
            "type": "str",
            "length": 500
        },
        {
            "name": "publish_time",
            "title": "发布时间",
            "type": "str",
            "length": 32
        },
        {
            "name": "cluster_id",
            "title": "所属类别ID(聚类后回填)",
            "type": "str",
            "length": 32
        },
        {
            "name": "embed_status",
            "title": "向量化状态(cached/new/failed)",
            "type": "str",
            "length": 16,
            "default": "new"
        },
        {
            "name": "created_at",
            "title": "创建时间",
            "type": "timestamp",
            "nullable": "no"
        }
    ]
}