Parquetastic – a browser-based Parquet metadata inspector

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Parquetastic – a browser-based Parquet metadata inspector is a business in show hn launch.

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Hi HN!I work on an analytical database engine, and I spend a lot of time trying to understand the structure of Apache Parquet files (row groups, column chunks, data pages, encodings, etc.).I feel like existing tools for this job such as parquet-tools or pyarrow are cumbersome to use and for anything beyond the basics you end up writing custom code. Datanomy contains some more info, but still requires installing a CLI. Some databases like DuckDB also have a feature to query the metadata, but that means writing SQL for every little thing you want to check, and the output is still text.I wanted something I could just drop a file into, and immediately see the structure visualized — so I built Pa

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Website: parquetastic.dev