#parquet

apache/arrow-rs

Rust

88

health

Official Rust implementation of Apache Arrow

questdb/questdb

Java

88

health

QuestDB is a high performance, open-source, time-series database

lakehq/sail

Rust

87

health

Drop-in Apache Spark replacement written in Rust, unifying batch processing, stream processing, and compute-intensive AI workloads.

datazip-inc/olake

Go

87

health

OLake - Fastest Databases, Kafka & S3 Replication to Apache Iceberg with Table optimization (Called OLake Fusion). ⚡ Efficient, quick and scalable data ingestion for real-time analytics. Supported sources : Postgres, MongoDB, MySQL, Oracle, MSSql, DB2, Kafka, S3.

apache/arrow

C++

81

health

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

GIScience/ohsome-planet

Java

78

health

Transform OSM (history) PBF files into GeoParquet. Enrich with OSM changeset metadata and country information.

hardwood-hq/hardwood

Java

78

health

A fast minimal dependency implementation of Apache Parquet

madesroches/micromegas

Rust

71

health

Scalable Observability