WHAT IT ANSWERS
这张表适合回答什么
- 查询某只股票的新闻时间线
- 构建逐股新闻情绪因子
- 联接文章证据做案例研究
DATASET · event
event.news_eodhd
每行对应一篇文章与一个被标注证券,包含文章时间、内容元数据和该证券的情绪结果。
published_atWHAT IT ANSWERS
GRAIN & TIME
KEY FIELDS
published_attickerarticle_idRECOMMENDED JOINS
该表主要按自身业务键使用,目前没有推荐的跨表主键联接。
HOW TO QUERY SAFELY
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。
MACHINE CONTRACT
published_at, ticker, article_id—canonical_final_activeprovider→ provider · stringsource→ source · stringticker→ ticker · stringPOINT IN TIME
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
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。
curl --fail-with-body -H "Authorization: Bearer $FRIENDS_DATA_API_KEY" "https://api.alphahubs.uk/api/v1/data/datasets/event/news_eodhd/rows?limit=100&provider=PROVIDER_VALUE"from friends_data_api import FriendsDataClient, Settings
async with FriendsDataClient(Settings.from_env()) as client:
page = await client.get_dataset_rows('event', 'news_eodhd', limit=100, filters={'provider': 'PROVIDER_VALUE'})
print(page.data)
if page.has_more:
print("next cursor:", page.next_cursor)friends-data get-dataset-rows event news_eodhd --limit 100 --filter provider=PROVIDER_VALUE{
"arguments": {
"dataset": "news_eodhd",
"filters": {
"provider": "PROVIDER_VALUE"
},
"limit": 100,
"namespace": "event"
},
"tool": "get_dataset_rows"
}FIELD DICTIONARY
descriptionSource 可在 JSON 中区分仓库注释、标准术语表和名称推导说明。
| # | 字段 | ClickHouse 类型 | JSON | 可空 | 角色 | 说明 |
|---|---|---|---|---|---|---|
| 1 | article_id | String | string | no | default_order, warehouse_primary_key | Identifier for article.名称推导 |
| 2 | published_atUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | time, default_order, warehouse_primary_key | UTC timestamp when the source published the record.标准术语表 |
| 3 | ticker | LowCardinality(String) | string | no | filter, default_order, warehouse_primary_key | Ticker symbol reported by the source or mapped security master.标准术语表 |
| 4 | title | String | string | no | value | Human-readable title supplied or normalized from the source.标准术语表 |
| 5 | url | String | string | no | value | Canonical URL attached to the record.标准术语表 |
| 6 | source | LowCardinality(String) | string | no | filter, provenance | Normalized upstream source identifier.标准术语表 |
| 7 | provider | LowCardinality(String) | string | no | filter, provenance | Upstream data provider identifier.标准术语表 |
| 8 | sentiment_score | Nullable(Float64) | number | yes | value | Source-normalized field: sentiment score.名称推导 |
| 9 | sentiment_pos | Nullable(Float64) | number | yes | value | Source-normalized field: sentiment pos.名称推导 |
| 10 | sentiment_neg | Nullable(Float64) | number | yes | value | Source-normalized field: sentiment neg.名称推导 |
| 11 | sentiment_neu | Nullable(Float64) | number | yes | value | Source-normalized field: sentiment neu.名称推导 |
| 12 | tags | Array(String) | array | no | value | Source-normalized field: tags.名称推导 |
| 13 | quality_status | LowCardinality(String) | string | no | provenance | Machine-readable data-quality classification.标准术语表 |
| 14 | version_tsUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | provenance | UTC timestamp associated with the row version.标准术语表 |
| 15 | is_deleted | UInt8 | integer | no | value | Soft-delete marker; public serving excludes current tombstones.标准术语表 |
换一个字段名、类型或角色。
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。