examples/duckdb.sql

-- Run from the dataset release directory.
SELECT
    contract_name,
    contract_code,
    COUNT(*) AS observations,
    MIN(timestamp) AS first_timestamp,
    MAX(timestamp) AS last_timestamp
FROM read_parquet('data/minute/*.parquet')
GROUP BY contract_name, contract_code
ORDER BY contract_name, contract_code;

SELECT *
FROM read_parquet('data/daily/*.parquet')
ORDER BY contract_name, contract_code, timestamp
LIMIT 100;