The Nimble File Format Nimble (formerly known as “Alpha”) is a new columnar file format for large datasets created by Meta. Nimble is meant to be a replacement for file formats such as Apache Parquet and ORC. Watch this talk to learn more about Nimble’s internals. Nimble has the following design principles: Wide: Nimble is better suited for workloads that are wide in nature, such as tables with thousands of columns (or streams) which are commonly found in feature engineering workloads and traini...