Asynchronous I/O in DuckDB: Work, Thread, Work
Starting with v2.0, scheduled for fall 2026, DuckDB will support asynchronous reads of Parquet and CSV files. This can significantly speed up queries when synchronous I/O does not saturate the available bandwidth, as is typical in EC2/S3 compute-storage setups.
Summary
DuckDB’s upcoming version 2.0 will introduce asynchronous reading for Parquet and CSV files, enhancing query performance, especially in environments like EC2/S3 where synchronous I/O may not fully utilize bandwidth. This change could lead to faster data processing and improved efficiency for users.
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