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Documentation
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Querying Parquet Files
To run a query directly on a Parquet file, use the read_parquet function in the FROM clause of a query.
SELECT * FROM read_parquet('input.parquet');
The Parquet file will be processed in parallel. Filters will be automatically pushed down into the Parquet scan, and only the relevant columns will be read automatically.
For more information see the blog post “Querying Parquet with Precision using DuckDB”.