DATASET · ref

量化资金流代码时点映射

ref.quant_flow_symbol_identity_pit

标的与映射

这是证券主数据、交易日历与跨来源映射中的“量化资金流代码时点映射”数据集；一行由 source_system、market、symbol_normalized、valid_from 定位，主要字段包括 record_id、symbol_raw、instrument_id、economic_underlying_symbol、economic_underlying_instrument_id。

下载本类 JSON 下载完整 JSON.gz 先获取 Key

字段33

关键字段6

更新口径producer_schedule

时间列created_at

单页上限5000

分页Cursor

PIT不支持

规模0

WHAT IT ANSWERS

这张表适合回答什么

解析证券与来源标识映射
为跨表查询补充分类和主数据

GRAIN & TIME

一行代表什么

业务粒度: 每行代表“量化资金流代码时点映射”的一条记录；逻辑粒度由 source_system × market × symbol_normalized × valid_from × source_record_id × version 共同确定。
时间口径: 以 created_at 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: 由对应生产任务或事件触发更新，不承诺固定日历频率；查询前先检查最新时间。

KEY FIELDS

先看这些字段

source_system: 用于确定该表业务粒度或默认顺序的 source system 字段。
market: 规范市场代码。
symbol_normalized: 用于确定该表业务粒度或默认顺序的 symbol normalized 字段。
valid_from: 用于确定该表业务粒度或默认顺序的 valid from 字段。
source_record_id: 用于识别 source record 的业务标识。
version: 用于确定该表业务粒度或默认顺序的 version 字段。

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，响应有 has_more 时原样传回 next_cursor 继续分页。

字典采样时该关系可能为空；先查询 catalog 或小范围 rows 判断当前是否已有数据。

MACHINE CONTRACT

筛选、排序与分页

UNVERSIONED

默认排序: source_system, market, symbol_normalized, valid_from, source_record_id, version
唯一键: source_system, market, symbol_normalized, valid_from, source_record_id, version
读取模式: relation_default
最大时间窗: 未单独限制

可用 filters

instrument_id→ instrument_id · integer

market→ market · 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/ref/quant_flow_symbol_identity_pit/rows?limit=100&instrument_id=1"

PYTHON SDK

from friends_data_api import FriendsDataClient, Settings

async with FriendsDataClient(Settings.from_env()) as client:
    page = await client.get_dataset_rows('ref', 'quant_flow_symbol_identity_pit', limit=100, filters={'instrument_id': 1})
    print(page.data)
    if page.has_more:
        print("next cursor:", page.next_cursor)

CLI

friends-data get-dataset-rows ref quant_flow_symbol_identity_pit --limit 100 --filter instrument_id=1

MCP TOOL CALL

{
  "arguments": {
    "dataset": "quant_flow_symbol_identity_pit",
    "filters": {
      "instrument_id": 1
    },
    "limit": 100,
    "namespace": "ref"
  },
  "tool": "get_dataset_rows"
}

FIELD DICTIONARY

33 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	`record_id`	`FixedString(64)`	`string`	no	value	Identifier for record.名称推导
2	`source_system`	`LowCardinality(String)`	`string`	no	default_order, warehouse_primary_key, contract_unique_key	Source-normalized field: source system.名称推导
3	`market`	`LowCardinality(String)`	`string`	no	filter, default_order, warehouse_primary_key, contract_unique_key	Canonical market or country-market code.标准术语表
4	`symbol_raw`	`String`	`string`	no	value	Source-normalized field: symbol raw.名称推导
5	`symbol_normalized`	`String`	`string`	no	default_order, warehouse_primary_key, contract_unique_key	Source-normalized field: symbol normalized.名称推导
6	`instrument_id`	`Nullable(UInt64)`	`integer`	yes	filter	WarrenHub canonical instrument identifier; use it for cross-dataset joins.标准术语表
7	`economic_underlying_symbol`	`String`	`string`	no	value	Source-normalized field: economic underlying symbol.名称推导
8	`economic_underlying_instrument_id`	`Nullable(UInt64)`	`integer`	yes	value	Identifier for economic underlying instrument.名称推导
9	`valid_from`	`DateTime64(6, 'UTC')`	`string / date-time`	no	default_order, warehouse_primary_key, contract_unique_key	Source-normalized field: valid from.名称推导
10	`valid_to`	`Nullable(DateTime64(6, 'UTC'))`	`string / date-time`	yes	value	Source-normalized field: valid to.名称推导
11	`knowledge_available_at`UTC_datetime	`DateTime64(6, 'UTC')`	`string / date-time`	no	warehouse_primary_key	UTC timestamp for knowledge available at.名称推导
12	`mapping_as_of`	`DateTime64(6, 'UTC')`	`string / date-time`	no	value	Source-normalized field: mapping as of.名称推导
13	`mapping_status`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: mapping status.名称推导
14	`resolution_basis`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: resolution basis.名称推导
15	`stable_id_kind`	`Nullable(String)`	`string`	yes	value	Source-normalized field: stable id kind.名称推导
16	`stable_id_value`	`Nullable(String)`	`string`	yes	value	Source-normalized field: stable id value.名称推导
17	`provider`	`LowCardinality(String)`	`string`	no	filter, provenance	Upstream data provider identifier.标准术语表
18	`source_url`	`String`	`string`	no	provenance	URL of the upstream evidence or record when distributable.标准术语表
19	`source_record_id`	`String`	`string`	no	default_order, warehouse_primary_key, contract_unique_key, provenance	Provider-side identifier for the source record.标准术语表
20	`raw_payload_sha256`	`FixedString(64)`	`string`	no	value	Source-normalized field: raw payload sha256.名称推导
21	`dataset_sha256`	`FixedString(64)`	`string`	no	value	Source-normalized field: dataset sha256.名称推导
22	`source_payload_sha256`	`FixedString(64)`	`string`	no	value	Source-normalized field: source payload sha256.名称推导
23	`import_contract_sha256`	`FixedString(64)`	`string`	no	value	Source-normalized field: import contract sha256.名称推导
24	`parser_version`	`LowCardinality(String)`	`string`	no	provenance	Version of the parser or normalizer that produced the row.标准术语表
25	`ingest_run_id`	`String`	`string`	no	provenance	Identifier of the ingestion run that produced the row.标准术语表
26	`mapping_contract_version`	`LowCardinality(String)`	`string`	no	value	Source-normalized field: mapping contract version.名称推导
27	`quality_status`	`LowCardinality(String)`	`string`	no	provenance	Machine-readable data-quality classification.标准术语表
28	`license_scope`	`LowCardinality(String)`	`string`	no	provenance	License or redistribution scope attached to the row.标准术语表
29	`visibility_tier`	`LowCardinality(String)`	`string`	no	provenance	Serving visibility tier attached to the row.标准术语表
30	`version`	`UInt64`	`integer`	no	default_order, warehouse_primary_key, contract_unique_key, provenance	Monotonic row version used for correction-aware reads.标准术语表
31	`is_deleted`	`UInt8`	`integer`	no	value	Soft-delete marker; public serving excludes current tombstones.标准术语表
32	`created_at`UTC_datetime	`DateTime64(6, 'UTC')`	`string / date-time`	no	time	UTC timestamp when the warehouse row was first created.标准术语表
33	`raw_payload_hash`	`String`	`string`	no	provenance	Opaque fingerprint of the normalized source payload for provenance checks.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。