WHAT IT ANSWERS
这张表适合回答什么
- 从事件回溯原始文本
- 按来源检索证据文档
- 联接事件流与候选证据
DATASET · event
事件原始文档
event.source_document
统一保存申报、新闻稿、政府、宏观、新闻和社交事件背后的解析文档及来源信息。
字段35
关键字段2
更新口径event
时间列
published_ts单页上限5000
分页窄筛选
PIT不支持
规模1M-9M
GRAIN & TIME
一行代表什么
- 业务粒度
- 每行代表“事件原始文档”的一条记录；逻辑粒度由 doc_id × published_ts 共同确定。
- 时间口径
- 以 published_ts 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
- 由公告、新闻或业务事件触发更新，没有固定日历频率。
KEY FIELDS
先看这些字段
doc_id- 标准化原始文档标识；可联接 event.source_document。
published_ts- 来源公开文档或事件的时间。
RECOMMENDED JOINS
怎样和其他表关联
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
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，该表不提供稳定 cursor，结果过大时必须缩小标的、日期或其他筛选。
- 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
- 默认排序
published_ts, source, doc_id- 唯一键
—- 读取模式
canonical_final_active- 最大时间窗
- 未单独限制
可用 filters
doc_id→ doc_id · stringdocument_type→ document_type · stringlanguage→ language · stringprovider_doc_type→ provider_doc_type · stringsource→ source · stringPOINT IN TIME
可复现读取
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。
HTTP
curl --fail-with-body -H "Authorization: Bearer $FRIENDS_DATA_API_KEY" "https://api.alphahubs.uk/api/v1/data/datasets/event/source_document/rows?limit=100&source=SOURCE_VALUE&start=2026-08-01&end=2026-08-01"PYTHON SDK
from friends_data_api import FriendsDataClient, Settings
async with FriendsDataClient(Settings.from_env()) as client:
page = await client.get_dataset_rows('event', 'source_document', limit=100, start='2026-08-01', end='2026-08-01', filters={'source': 'SOURCE_VALUE'})
print(page.data)
if page.has_more:
print("next cursor:", page.next_cursor)CLI
friends-data get-dataset-rows event source_document --limit 100 --start 2026-08-01 --end 2026-08-01 --filter source=SOURCE_VALUEMCP TOOL CALL
{
"arguments": {
"dataset": "source_document",
"end": "2026-08-01",
"filters": {
"source": "SOURCE_VALUE"
},
"limit": 100,
"namespace": "event",
"start": "2026-08-01"
},
"tool": "get_dataset_rows"
}FIELD DICTIONARY
35 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。
| # | 字段 | ClickHouse 类型 | JSON | 可空 | 角色 | 说明 |
|---|---|---|---|---|---|---|
| 1 | doc_id | String | string | no | filter, default_order, warehouse_primary_key | Identifier for doc.名称推导 |
| 2 | published_tsUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | time, default_order, provenance | UTC timestamp when the source published the record.标准术语表 |
| 3 | document_type | LowCardinality(String) | string | no | filter | Source-normalized field: document type.名称推导 |
| 4 | provider_doc_type | LowCardinality(String) | string | no | filter | Source-normalized field: provider doc type.名称推导 |
| 5 | title | String | string | no | value | Human-readable title supplied or normalized from the source.标准术语表 |
| 6 | url | String | string | no | value | Canonical URL attached to the record.标准术语表 |
| 7 | body | String | string | no | value | Source-normalized field: body.名称推导 |
| 8 | body_hash | String | string | no | value | Source-normalized field: body hash.名称推导 |
| 9 | language | LowCardinality(String) | string | no | filter | Source-normalized field: language.名称推导 |
| 10 | entities | String | string | no | value | Source-normalized field: entities.名称推导 |
| 11 | metadata | String | string | no | value | Source-normalized field: metadata.名称推导 |
| 12 | source | LowCardinality(String) | string | no | filter, default_order, provenance | Normalized upstream source identifier.标准术语表 |
| 13 | provider | LowCardinality(String) | string | no | provenance | Upstream data provider identifier.标准术语表 |
| 14 | source_url | String | string | no | provenance | URL of the upstream evidence or record when distributable.标准术语表 |
| 15 | source_record_id | String | string | no | provenance | Provider-side identifier for the source record.标准术语表 |
| 16 | raw_payload_hash | String | string | no | provenance | Opaque fingerprint of the normalized source payload for provenance checks.标准术语表 |
| 17 | parser_version | LowCardinality(String) | string | no | provenance | Version of the parser or normalizer that produced the row.标准术语表 |
| 18 | quality_status | LowCardinality(String) | string | no | provenance | Machine-readable data-quality classification.标准术语表 |
| 19 | license_scope | LowCardinality(String) | string | no | provenance | License or redistribution scope attached to the row.标准术语表 |
| 20 | visibility_tier | LowCardinality(String) | string | no | provenance | Serving visibility tier attached to the row.标准术语表 |
| 21 | ingest_run_id | String | string | no | provenance | Identifier of the ingestion run that produced the row.标准术语表 |
| 22 | version | UInt64 | integer | no | provenance | Monotonic row version used for correction-aware reads.标准术语表 |
| 23 | is_deleted | UInt8 | integer | no | value | Soft-delete marker; public serving excludes current tombstones.标准术语表 |
| 24 | created_atUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | value | UTC timestamp when the warehouse row was first created.标准术语表 |
| 25 | updated_atUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | value | UTC timestamp when the warehouse row was last updated.标准术语表 |
| 26 | text_markdown_path | String | string | no | value | Source-normalized field: text markdown path.名称推导 |
| 27 | text_markdown_sha256 | String | string | no | value | Source-normalized field: text markdown sha256.名称推导 |
| 28 | text_markdown_size | UInt64 | integer | no | value | Source-normalized field: text markdown size.名称推导 |
| 29 | text_encoding | LowCardinality(String) | string | no | value | Source-normalized field: text encoding.名称推导 |
| 30 | source_layer | LowCardinality(String) | string | no | value | Source-normalized field: source layer.名称推导 |
| 31 | source_dataset_version | String | string | no | value | Source-normalized field: source dataset version.名称推导 |
| 32 | source_priority | UInt8 | integer | no | value | Source-normalized field: source priority.名称推导 |
| 33 | granularity | LowCardinality(String) | string | no | value | Source-normalized field: granularity.名称推导 |
| 34 | amends_accession_no | String | string | no | value | Source-normalized field: amends accession no.名称推导 |
| 35 | item_codes | Array(String) | array | no | value | Source-normalized field: item codes.名称推导 |
没有匹配字段
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。