{
    "summary": [
        {
            "name": "product_category",
            "title": "产品分类",
            "primary": "id",
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "ID", "type": "str", "length": 32, "nullable": "no"},
		{ "name": "orgid", "title": "租户ID", "type": "str", "length": 32, "nullable": "no", "default": "", "comments": "所属组织（多租户隔离）" },
        
        {"name": "parent_id", "title": "父分类ID", "type": "str", "length": 32, "nullable": "yes"},
        {"name": "name", "title": "分类名称", "type": "str", "length": 128, "nullable": "no"},
        {"name": "slug", "title": "分类短名", "type": "str", "length": 128, "nullable": "yes"},
        {"name": "order_idx", "title": "排序号", "type": "long", "length": 0, "nullable": "yes", "default": "0"},
        {"name": "meta", "title": "扩展元数据", "type": "text", "nullable": "yes"},
        
        {"name": "created_at", "title": "创建时间", "type": "timestamp", "nullable": "yes"},
        {"name": "updated_at", "title": "更新时间", "type": "timestamp", "nullable": "yes"}
    ],
    "indexes": [
        {"name": "idx_parent", "idxtype": "index", "idxfields": ["parent_id"]}
    ]
}