WHAT IT ANSWERS
这张表适合回答什么
- 查询即将生效的指数调整
- 研究纳入剔除效应
- 构建被动资金流观察表
DATASET · event
指数成分调整事件
event.index_reconstitution
记录指数纳入、剔除等重构动作及生效日，用于研究被动资金再平衡和事件冲击。
字段25
关键字段3
更新口径event
时间列
effective_date单页上限5000
分页窄筛选
PIT不支持
规模1K-9K
GRAIN & TIME
一行代表什么
- 业务粒度
- 每行代表“指数成分调整事件”的一条记录；逻辑粒度由 index_name × ticker × effective_date 共同确定。
- 时间口径
- 以 effective_date 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
index_name- 用于确定该表业务粒度或默认顺序的 index name 字段。
ticker- 来源或证券主表使用的股票代码。
effective_date- 公司行为或映射开始生效的日期。
RECOMMENDED JOINS
怎样和其他表关联
ref.instrumenton instrument_id用 instrument_id 补充证券代码、名称、市场、交易所和资产类型。
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
effective_date, index_name, ticker- 唯一键
—- 读取模式
canonical_final_active- 最大时间窗
- 未单独限制
可用 filters
action→ action · stringindex_name→ index_name · stringinstrument_id→ instrument_id · integersource→ source · stringticker→ ticker · 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/index_reconstitution/rows?limit=100&instrument_id=1&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', 'index_reconstitution', limit=100, start='2026-08-01', end='2026-08-01', filters={'instrument_id': 1})
print(page.data)
if page.has_more:
print("next cursor:", page.next_cursor)CLI
friends-data get-dataset-rows event index_reconstitution --limit 100 --start 2026-08-01 --end 2026-08-01 --filter instrument_id=1MCP TOOL CALL
{
"arguments": {
"dataset": "index_reconstitution",
"end": "2026-08-01",
"filters": {
"instrument_id": 1
},
"limit": 100,
"namespace": "event",
"start": "2026-08-01"
},
"tool": "get_dataset_rows"
}FIELD DICTIONARY
25 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 | index_name | LowCardinality(String) | string | no | filter, default_order, warehouse_primary_key | Source-normalized field: index name.名称推导 |
| 2 | action | LowCardinality(String) | string | no | filter, warehouse_primary_key | Source-normalized field: action.名称推导 |
| 3 | instrument_id | UInt64 | integer | no | filter, warehouse_primary_key | WarrenHub canonical instrument identifier; use it for cross-dataset joins.标准术语表 |
| 4 | ticker | String | string | no | filter, default_order | Ticker symbol reported by the source or mapped security master.标准术语表 |
| 5 | security_name | String | string | no | value | Source-normalized field: security name.名称推导 |
| 6 | announce_datedate | Nullable(Date) | string / date | yes | value | Calendar date for announce date (YYYY-MM-DD).名称推导 |
| 7 | effective_datedate | Date | string / date | no | time, default_order, warehouse_primary_key | Date on which the record or action becomes effective.标准术语表 |
| 8 | is_preliminary | UInt8 | integer | no | value | Whether preliminary applies to the row.名称推导 |
| 9 | reason | String | string | no | value | Source-normalized field: reason.名称推导 |
| 10 | publish_tsUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | provenance | UTC point-in-time availability timestamp used by PIT reads.标准术语表 |
| 11 | source_tsUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | provenance | Timestamp asserted by the upstream source.标准术语表 |
| 12 | ingested_atUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | provenance | UTC timestamp when the source record entered the warehouse.标准术语表 |
| 13 | source | LowCardinality(String) | string | no | filter, warehouse_primary_key, provenance | Normalized upstream source identifier.标准术语表 |
| 14 | provider | LowCardinality(String) | string | no | provenance | Upstream data provider identifier.标准术语表 |
| 15 | source_url | String | string | no | provenance | URL of the upstream evidence or record when distributable.标准术语表 |
| 16 | source_record_id | String | string | no | provenance | Provider-side identifier for the source record.标准术语表 |
| 17 | raw_payload_hash | String | string | no | provenance | Opaque fingerprint of the normalized source payload for provenance checks.标准术语表 |
| 18 | parser_version | LowCardinality(String) | string | no | provenance | Version of the parser or normalizer that produced the row.标准术语表 |
| 19 | quality_status | LowCardinality(String) | string | no | provenance | Machine-readable data-quality classification.标准术语表 |
| 20 | license_scope | LowCardinality(String) | string | no | provenance | License or redistribution scope attached to the row.标准术语表 |
| 21 | visibility_tier | LowCardinality(String) | string | no | provenance | Serving visibility tier attached to the row.标准术语表 |
| 22 | ingest_run_id | String | string | no | provenance | Identifier of the ingestion run that produced the row.标准术语表 |
| 23 | version | UInt64 | integer | no | provenance | Monotonic row version used for correction-aware reads.标准术语表 |
| 24 | version_tsUTC_datetime | DateTime64(3, 'UTC') | string / date-time | no | provenance | UTC timestamp associated with the row version.标准术语表 |
| 25 | is_deleted | UInt8 | integer | no | value | Soft-delete marker; public serving excludes current tombstones.标准术语表 |
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。