Java Foreign Function & Memory (FFM) bindings for zstd

Reader for the Vortex columnar file format. Zero-copy memory-mapped reads via the Java FFM API (Java 25+), no JNI, no sun.misc.Unsafe.

Writer for the Vortex columnar file format. Produces compressed columnar files readable by any Vortex implementation.

Apache Calcite SQL adapter over the Vortex columnar file format with projection, filter and aggregate push-down.

Parquet conversion support for the Vortex columnar file format.

zstd-ffm bindings bundled with every platform's native library

CSV import/export support for the Vortex columnar file format.

JDBC import support for the Vortex columnar file format.

JDBC driver (jdbc:vortex:) to query Vortex files with SQL from any JDBC tool, shipped as a self-contained jar.

Command-line interface for the Vortex columnar file format.

Integration tests for the Vortex columnar file format Java implementation.