Apache Arrow vs. Parquet and ORC: Do we really need a third Apache project for columnar data representation?
Apache Parquet and Apache ORC have become a popular file formats for storing data in the Hadoop ecosystem. Their primary value proposition revolves around their “columnar data representation format”. To quickly explain what this means: many people model their data in a set of two dimensional tables where each row corresponds to an entity, and each column an attribute about that entity. However, st
The Columnar Era: Leveraging Parquet, Arrow and Kudu for High-Performance Analytics
This document discusses Apache Parquet and Apache Arrow, open source projects for columnar data formats. Parquet is an on-disk columnar format that optimizes I/O performance through compression and projection pushdown. Arrow is an in-memory columnar format that maximizes CPU efficiency through vectorized processing and SIMD. It aims to serve as a standard in-memory format between systems. The docu
Inside Capacitor, BigQuery’s next-generation columnar storage format | Google Cloud Blog
Inside Capacitor, BigQuery’s next-generation columnar storage format The “BigQuery under the hood” blog post gave an overview of different BigQuery subsystems. Today, we'll take a deeper dive into one of them — the storage system. We'll follow data as it's loaded into a BigQuery table.BigQuery supports several input formats — CSV, JSON, Datastore backups, AVRO — and w
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