Gunnar Morling • 4/29/2026

VARIANT Support, Interactive Parquet File TUI: Hardwood 1.0.0.Beta2 Is Out

This article announces the release of Hardwood 1.0.0.Beta2, a parser for Apache Parquet files. Key features include support for VARIANT columns (semi-structured JSON-like data), an interactive text-based UI (TUI) for examining Parquet file structure, improved performance, and more efficient reading from object storage. It details the PqVariant API for accessing variant values, including methods for type narrowing and nested object/array navigation. The article is technical and focused on software development for data processing.

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#Java #TUI #Parquet