Grammars written for ANTLR v4; expectation that the grammars are free of actions.

The official home of the Presto distributed SQL query engine for big data

Flux is a lightweight scripting language for querying databases (like InfluxDB) and working with data. It's part of InfluxDB 1.7 and 2.0, but can be run independently of those.

IVM (Incremental View Maintenance) development for PostgreSQL

A query and indexing engine for Redis, providing secondary indexing, full-text search, vector similarity search and aggregations.

The platform for customizing AI from enterprise data

Apache Doris is an easy-to-use, high performance and unified analytics database.

MiniOB is a compact database that assists developers in understanding the fundamental workings of a database.

Open Source Oracle Compatible PostgreSQL.

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)