DATASET · event

预测市场合约目录

event.prediction_market_catalog

新闻、公告与事件

这是公告、新闻与可交易事件中的“预测市场合约目录”数据集；一行由 snapshot_date、market_id 定位，主要字段包括 observed_at、slug、question、category、tags。

下载本类 JSON 下载完整 JSON.gz 先获取 Key

字段36

关键字段2

更新口径producer_schedule

时间列observed_at

单页上限5000

分页Cursor

PIT不支持

规模1M-9M

WHAT IT ANSWERS

这张表适合回答什么

按标的和时间检索事件或原文
与行情联接研究事件前后反应

GRAIN & TIME

一行代表什么

业务粒度: 每行代表“预测市场合约目录”的一条记录；逻辑粒度由 snapshot_date × market_id 共同确定。
时间口径: 以 observed_at 为主要查询时间轴；除下方限制特别说明外，时间戳按 UTC、日期按来源市场日历解释。
更新节奏: 由对应生产任务或事件触发更新，不承诺固定日历频率；查询前先检查最新时间。

KEY FIELDS

先看这些字段

snapshot_date: snapshot date 对应的日历日期。
market_id: 用于识别 market 的业务标识。

RECOMMENDED JOINS

怎样和其他表关联

event.streamon event_id

用 event_id 回到统一事件流和事件分类。

HOW TO QUERY SAFELY

查询方法与已知限制

先用 catalog 确认当前契约；可按 catalog 中列出的 filters 进一步缩小范围；单页最多 5000 行，响应有 has_more 时原样传回 next_cursor 继续分页。

返回范围仍受 Friends 权限、单页上限和 catalog 中的筛选契约约束。

MACHINE CONTRACT

筛选、排序与分页

UNVERSIONED

默认排序: snapshot_date, market_id
唯一键: snapshot_date, market_id
读取模式: canonical_final_active
最大时间窗: 未单独限制

可用 filters

event_id→ event_id · string

market_id→ market_id · string

provider→ provider · string

snapshot_date→ snapshot_date · string

source→ source · string

POINT IN TIME

可复现读取

NOT AVAILABLE

该资产没有 PIT 契约。普通 rows 端点仍按当前公开读模式返回数据；不要把它表述成历史时点快照。

COPY-READY CALLS

怎么调用

同一数据集可用 HTTP、Python SDK、CLI 或 MCP；Key 始终只通过环境变量/Bearer Header 传递。

READ ONLY

HTTP

curl --fail-with-body -H "Authorization: Bearer $FRIENDS_DATA_API_KEY" "https://api.alphahubs.uk/api/v1/data/datasets/event/prediction_market_catalog/rows?limit=100&provider=PROVIDER_VALUE"

PYTHON SDK

from friends_data_api import FriendsDataClient, Settings

async with FriendsDataClient(Settings.from_env()) as client:
    page = await client.get_dataset_rows('event', 'prediction_market_catalog', limit=100, filters={'provider': 'PROVIDER_VALUE'})
    print(page.data)
    if page.has_more:
        print("next cursor:", page.next_cursor)

CLI

friends-data get-dataset-rows event prediction_market_catalog --limit 100 --filter provider=PROVIDER_VALUE

MCP TOOL CALL

{
  "arguments": {
    "dataset": "prediction_market_catalog",
    "filters": {
      "provider": "PROVIDER_VALUE"
    },
    "limit": 100,
    "namespace": "event"
  },
  "tool": "get_dataset_rows"
}

FIELD DICTIONARY

36 个返回字段

descriptionSource 可在 JSON 中区分仓库注释、标准术语表和名称推导说明。

筛选字段

#	字段	ClickHouse 类型	JSON	可空	角色	说明
1	`snapshot_date`date	`Date`	`string / date`	no	filter, default_order, warehouse_primary_key, contract_unique_key	Calendar date for snapshot date (YYYY-MM-DD).名称推导
2	`observed_at`UTC_datetime	`DateTime64(3, 'UTC')`	`string / date-time`	no	time	UTC timestamp for observed at.名称推导
3	`market_id`	`String`	`string`	no	filter, default_order, warehouse_primary_key, contract_unique_key	Identifier for market.名称推导
4	`slug`	`String`	`string`	no	value	Source-normalized field: slug.名称推导
5	`question`	`String`	`string`	no	value	Source-normalized field: question.名称推导
6	`category`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: category.名称推导
7	`tags`	`String`	`string`	no	value	Source-normalized field: tags.名称推导
8	`event_id`	`String`	`string`	no	filter	Stable identifier of the normalized event.标准术语表
9	`end_date`date	`Nullable(DateTime64(3, 'UTC'))`	`string / date-time`	yes	value	Calendar date for end date (YYYY-MM-DD).名称推导
10	`active`	`UInt8`	`integer`	no	value	Source-normalized field: active.名称推导
11	`closed`	`UInt8`	`integer`	no	value	Source-normalized field: closed.名称推导
12	`liquidity_num`	`Nullable(Float64)`	`number`	yes	value	Source-normalized field: liquidity num.名称推导
13	`volume_num`	`Nullable(Float64)`	`number`	yes	value	Source-normalized field: volume num.名称推导
14	`volume_24hr`	`Nullable(Float64)`	`number`	yes	value	Source-normalized field: volume 24hr.名称推导
15	`outcomes`	`String`	`string`	no	value	Source-normalized field: outcomes.名称推导
16	`outcome_prices`	`String`	`string`	no	value	Source-normalized field: outcome prices.名称推导
17	`ingested_at`UTC_datetime	`DateTime64(3, 'UTC')`	`string / date-time`	no	provenance	UTC timestamp when the source record entered the warehouse.标准术语表
18	`source`	`LowCardinality(String)`	`string`	no	filter, provenance	Normalized upstream source identifier.标准术语表
19	`provider`	`LowCardinality(String)`	`string`	no	filter, provenance	Upstream data provider identifier.标准术语表
20	`ingest_run_id`	`String`	`string`	no	provenance	Identifier of the ingestion run that produced the row.标准术语表
21	`version`	`UInt64`	`integer`	no	provenance	Monotonic row version used for correction-aware reads.标准术语表
22	`source_url`	`String`	`string`	no	provenance	URL of the upstream evidence or record when distributable.标准术语表
23	`source_record_id`	`String`	`string`	no	provenance	Provider-side identifier for the source record.标准术语表
24	`raw_payload_hash`	`String`	`string`	no	provenance	Opaque fingerprint of the normalized source payload for provenance checks.标准术语表
25	`parser_version`	`LowCardinality(String)`	`string`	no	provenance	Version of the parser or normalizer that produced the row.标准术语表
26	`quality_status`	`LowCardinality(String)`	`string`	no	provenance	Machine-readable data-quality classification.标准术语表
27	`license_scope`	`LowCardinality(String)`	`string`	no	provenance	License or redistribution scope attached to the row.标准术语表
28	`visibility_tier`	`LowCardinality(String)`	`string`	no	provenance	Serving visibility tier attached to the row.标准术语表
29	`condition_id`	`Nullable(String)`	`string`	yes	value	Identifier for condition.名称推导
30	`clob_token_ids`	`Nullable(String)`	`string`	yes	value	Source-normalized field: clob token ids.名称推导
31	`description`	`Nullable(String)`	`string`	yes	value	Human-readable description supplied or normalized from the source.标准术语表
32	`resolution_source`	`Nullable(String)`	`string`	yes	value	Source-normalized field: resolution source.名称推导
33	`uma_resolution_status`	`Nullable(String)`	`string`	yes	value	Source-normalized field: uma resolution status.名称推导
34	`uma_resolution_statuses`	`Nullable(String)`	`string`	yes	value	Source-normalized field: uma resolution statuses.名称推导
35	`native_observation_json`	`Nullable(String)`	`string`	yes	value	Source-normalized field: native observation json.名称推导
36	`native_winner_fields_json`	`Nullable(String)`	`string`	yes	value	Source-normalized field: native winner fields json.名称推导

字典口径

结构来自 Friends 只读身份可见的真实 serving relation；权限、过滤、排序、PIT 与分页来自可执行 DatasetSpec。Schema observed at 2026-10-06T18:08:52Z。