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Apache Parquet & Arrow

Apache

Data & file formatsCloud & APIs

WHY YOU NEED THIS

Data lake and analytics pipelines standardize on Parquet file layout and Arrow IPC — specs at apache.org project sites.

What It Is

Apache Software Foundation columnar formats: Parquet (on-disk analytics) and Arrow (in-memory + IPC serialization).

Taxonomy

Per-project documentation: Parquet format · Arrow columnar · ORC (separate project)

Top-Level Categories

Parquet file formatArrow IPC / FeatherArrow C Data interface

Master Catalog

Parquet format docs

Sub-Indexes & Guides

Arrow format spec

Rundown Standards Body

Apache Software Foundation

Open-source foundation publishing columnar and analytics file formats widely used in data pipelines: Apache Parquet (columnar storage) and Apache Arrow (in-memory columnar + IPC serialization). Specs are maintained on parquet.apache.org and arrow.apache.org.

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Curated specs from Apache

Apache ParquetApacheShould Know

Parquet

Parquet is the standard lakehouse/warehouse on-disk format (Spark, DuckDB, BigQuery export, Snowflake). Column chunk layout explains why analytics workloads beat row-oriented JSON/CSV.

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Details

Apache ArrowApacheNiche

Arrow IPC

Arrow is the interchange layer between Python/R/JVM analytics, DuckDB, and Parquet readers. IPC framing is how columnar data crosses process boundaries without JSON overhead.

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Related Registry Sources

parquetarrowcolumnaranalytics