DATASET · event

事件质量与去重增强

event.stream_quality_enrichment

新闻、公告与事件

这是公告、新闻与可交易事件中的“事件质量与去重增强”数据集；一行由 event_source、event_ts、event_id、dedup_group_id 定位，主要字段包括 event_code、title、url、source_url、source_record_id。

下载本类 JSON 下载完整 JSON.gz 先获取 Key

字段35

关键字段4

更新口径intraday

时间列event_ts

单页上限5000

分页Cursor

PIT不支持

规模100K-999K

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“事件质量与去重增强”的一条记录；逻辑粒度由 event_id × event_source × event_ts × dedup_group_id 共同确定。
时间口径: 以 event_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: 交易时段内可多次更新；请检查时间列判断新鲜度。

KEY FIELDS

先看这些字段

event_id: 统一事件标识；可联接 event.stream。
event_source: 用于确定该表业务粒度或默认顺序的 event source 字段。
event_ts: 标准化事件发生或发布时间，默认按 UTC 解释。
dedup_group_id: 用于识别 dedup group 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: event_source, event_ts, event_id, dedup_group_id
唯一键: event_source, event_ts, event_id, dedup_group_id
读取模式: canonical_final_active
最大时间窗: 未单独限制

可用 filters

event_code→ event_code · string

event_id→ event_id · string

provider→ provider · 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/stream_quality_enrichment/rows?limit=100&event_code=EVENT_CODE"

PYTHON SDK

from friends_data_api import FriendsDataClient, Settings

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

CLI

friends-data get-dataset-rows event stream_quality_enrichment --limit 100 --filter event_code=EVENT_CODE

MCP TOOL CALL

{
  "arguments": {
    "dataset": "stream_quality_enrichment",
    "filters": {
      "event_code": "EVENT_CODE"
    },
    "limit": 100,
    "namespace": "event"
  },
  "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。

筛选字段

#	字段	ClickHouse 类型	JSON	可空	角色	说明
1	`event_id`	`String`	`string`	no	filter, default_order, warehouse_primary_key, contract_unique_key	Stable identifier of the normalized event.标准术语表
2	`event_ts`UTC_datetime	`DateTime64(3, 'UTC')`	`string / date-time`	no	time, default_order, warehouse_primary_key, contract_unique_key	UTC timestamp of the normalized event.标准术语表
3	`event_source`	`LowCardinality(String)`	`string`	no	default_order, warehouse_primary_key, contract_unique_key	Source-normalized field: event source.名称推导
4	`event_code`	`LowCardinality(String)`	`string`	no	filter	Source-normalized field: event code.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	`source_url`	`String`	`string`	no	provenance	URL of the upstream evidence or record when distributable.标准术语表
8	`source_record_id`	`String`	`string`	no	provenance	Provider-side identifier for the source record.标准术语表
9	`dedup_key`	`String`	`string`	no	value	Source-normalized field: dedup key.名称推导
10	`dedup_group_id`	`String`	`string`	no	default_order, warehouse_primary_key, contract_unique_key	Identifier for dedup group.名称推导
11	`dedup_rank`	`UInt32`	`integer`	no	value	Source-normalized field: dedup rank.名称推导
12	`duplicate_count`	`UInt32`	`integer`	no	value	Count of duplicate count.名称推导
13	`is_canonical`	`UInt8`	`integer`	no	value	Whether canonical applies to the row.名称推导
14	`effective_severity`	`Nullable(Int16)`	`integer`	yes	value	Source-normalized field: effective severity.名称推导
15	`severity_source`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: severity source.名称推导
16	`severity_reason_effective`	`String`	`string`	no	value	Source-normalized field: severity reason effective.名称推导
17	`linked_tickers_json`	`String`	`string`	no	value	Source-normalized field: linked tickers json.名称推导
18	`linked_instrument_ids_json`	`String`	`string`	no	value	Source-normalized field: linked instrument ids json.名称推导
19	`linked_ticker_count`	`UInt16`	`integer`	no	value	Count of linked ticker count.名称推导
20	`entity_link_status`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: entity link status.名称推导
21	`quality_bucket`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: quality bucket.名称推导
22	`quality_reason`	`String`	`string`	no	value	Source-normalized field: quality reason.名称推导
23	`observed_at`UTC_datetime	`DateTime64(3, 'UTC')`	`string / date-time`	no	value	UTC timestamp for observed at.名称推导
24	`enrichment_source`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: enrichment source.名称推导
25	`provider`	`LowCardinality(String)`	`string`	no	filter, provenance	Upstream data provider identifier.标准术语表
26	`raw_payload_hash`	`String`	`string`	no	provenance	Opaque fingerprint of the normalized source payload for provenance checks.标准术语表
27	`parser_version`	`LowCardinality(String)`	`string`	no	provenance	Version of the parser or normalizer that produced the row.标准术语表
28	`quality_status`	`LowCardinality(String)`	`string`	no	provenance	Machine-readable data-quality classification.标准术语表
29	`license_scope`	`LowCardinality(String)`	`string`	no	provenance	License or redistribution scope attached to the row.标准术语表
30	`visibility_tier`	`LowCardinality(String)`	`string`	no	provenance	Serving visibility tier attached to the row.标准术语表
31	`ingest_run_id`	`String`	`string`	no	provenance	Identifier of the ingestion run that produced the row.标准术语表
32	`version`	`UInt64`	`integer`	no	provenance	Monotonic row version used for correction-aware reads.标准术语表
33	`is_deleted`	`UInt8`	`integer`	no	value	Soft-delete marker; public serving excludes current tombstones.标准术语表
34	`created_at`UTC_datetime	`DateTime64(3, 'UTC')`	`string / date-time`	no	value	UTC timestamp when the warehouse row was first created.标准术语表
35	`updated_at`UTC_datetime	`DateTime64(3, 'UTC')`	`string / date-time`	no	value	UTC timestamp when the warehouse row was last updated.标准术语表

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。