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- Parquet Import 11228
- To read data from a Parquet file, use the read_parquet function in the FROM clause of a query: SELECT * FROM read_parquet('input.parquet'); Alternatively, you can omit the read_parquet function and let DuckDB infer it from the extension: SE
...he COPY statement to load data from a Parquet file into an existing table: COPY tbl FROM 'input.parquet' (FORMAT parquet); Adjusting the Schema on the Fly You can load a Parquet file into a slightly different schema (e.g., different number of columns, mor... - https://man.mtool.work/duckdb/2.0/guides/file_formats/parquet_import.html
- I/O 7485
- Warning DuckDB ships with safe defaults. The configuration options described on this page are advanced options, so proceed with caution when changing them. Asynchronous I/O New Asynchronous I/O was introduced in DuckDB 2.0. Starting with v2
...ost cases. On machines with high network bandwidth, you can further increase throughput by fixing the read-ahead depth and adjusting the number of asynchronous threads and the HTTP retry settings. For example, the following configuration saturated a 25 Gb... - https://man.mtool.work/duckdb/2.0/data/io.html
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