Market-data lake

lake.backtest_tickers dataset schema

Column types and research semantics for NexusTrade’s lake.backtest_tickers dataset. Read the supported schema before submitting a bounded SQL query.

Query name
lake.backtest_tickers
Grain
snapshot
Columns
9

Columns and types

These columns come from the same versioned logical catalog used by the query validator and engine. They describe the fields you can query. Some historical rows have missing values; fields absent from older shards can return typed NULL.

symbolVARCHAR
asset_classVARCHAR
sectorVARCHAR
industryVARCHAR
industry_tagsVARCHAR[]
exchangeVARCHAR
is_activeBOOLEAN
listing_dateDATE
delisted_dateDATE

Current logical schema for lake.backtest_tickers

Coverage and timing

The logical view is backed by canonical manifest-resolved data. Query this name rather than guessing a physical database collection or object-storage path.

Backtest corpus: metadata for each symbol a corpus run traded. Join `symbol` against the `lake.backtest_runs.tickers` list. `industry_tags` is VARCHAR[].

Run a limited query

Use a registered API key with lake scope. Select needed columns, bind user-supplied values and restrict dates when the table has a time dimension. Query results are durable parts with a schema and manifest rather than an unbounded in-memory array.

This reference documents the schema and its meaning. Run queries in your signed-in workspace; this page does not execute SQL or show private results and datasets.

sql
SELECT "symbol", "asset_class", "sector"
FROM lake.backtest_tickers
LIMIT 20;