WHAT IT ANSWERS
这张表适合回答什么
- 观察资金、持仓、借券或做空变化
- 构建拥挤度和资金方向指标
DATASET · flow
flow.fail_to_deliver
这是资金、持仓、借券与交易流中的“美股未按时交割量”数据集;一行由 instrument_id、settlement_date、source 定位,主要字段包括 cusip、symbol、market、ftd_quantity、price。
settlement_dateWHAT IT ANSWERS
GRAIN & TIME
KEY FIELDS
instrument_idsettlement_datesourceRECOMMENDED JOINS
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
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
instrument_id, settlement_date, sourceinstrument_id, settlement_date, sourcecanonical_final_activeinstrument_id→ instrument_id · integermarket→ market · stringprovider→ provider · stringsource→ source · stringsymbol→ symbol · 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/flow/fail_to_deliver/rows?limit=100&instrument_id=1"from friends_data_api import FriendsDataClient, Settings
async with FriendsDataClient(Settings.from_env()) as client:
page = await client.get_dataset_rows('flow', 'fail_to_deliver', limit=100, filters={'instrument_id': 1})
print(page.data)
if page.has_more:
print("next cursor:", page.next_cursor)friends-data get-dataset-rows flow fail_to_deliver --limit 100 --filter instrument_id=1{
"arguments": {
"dataset": "fail_to_deliver",
"filters": {
"instrument_id": 1
},
"limit": 100,
"namespace": "flow"
},
"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 | instrument_id | UInt64 | integer | no | filter, default_order, warehouse_primary_key, contract_unique_key | WarrenHub canonical instrument identifier; use it for cross-dataset joins.标准术语表 |
| 2 | cusip | String | string | no | value | Source-normalized field: cusip.名称推导 |
| 3 | symbol | String | string | no | filter | Display or trading symbol for the instrument.标准术语表 |
| 4 | market | LowCardinality(String) | string | no | filter | Canonical market or country-market code.标准术语表 |
| 5 | settlement_datedate | Date | string / date | no | time, default_order, warehouse_primary_key, contract_unique_key | Calendar date for settlement date (YYYY-MM-DD).名称推导 |
| 6 | ftd_quantity | UInt64 | integer | no | value | Source-normalized field: ftd quantity.名称推导 |
| 7 | price | Nullable(Float64) | number | yes | value | Source-normalized field: price.名称推导 |
| 8 | description | String | string | no | value | Human-readable description supplied or normalized from the source.标准术语表 |
| 9 | half_month_period | LowCardinality(String) | string | no | value | Source-normalized field: half month period.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, default_order, warehouse_primary_key, contract_unique_key, provenance | Normalized upstream source identifier.标准术语表 |
| 14 | provider | LowCardinality(String) | string | no | filter, 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 |
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。