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

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

OctoSQL is a query tool that allows you to join, analyse and transform data from multiple databases and file formats using SQL.

M3 monorepo - Distributed TSDB, Aggregator and Query Engine, Prometheus Sidecar, Graphite Compatible, Metrics Platform

Apache Arrow DataFusion SQL Query Engine

Simple and powerful toolkit for BoltDB

A MySQL-compatible relational database with a storage agnostic query engine. Implemented in pure Go.

Apache Arrow Ballista Distributed Query Engine

World's fastest log analysis: λ + SQL + JSON + S3

A golang expression evaluator & Library to build SQL query engine based functionality.

The OpenCog (hyper-)graph database and graph rewriting system

AutoFilterer is a mini filtering framework library for dotnet. The main purpose of the library is to generate LINQ expressions for Entities over DTOs automatically. The first aim is to be compatible with Open API 3.0 Specifications

📬 A knowledge graph querying framework for JavaScript

Federated mysql compatible proxy to elasticsearch, mongo, cassandra, big-table, google datastore

Databend 内幕大揭秘

Use SQL on various data sources

Very fast SPARQL Engine, which can handle very large knowledge graphs like the complete Wikidata, offers context-sensitive autocompletion for SPARQL queries, and allows combination with text search. It's faster than engines like Blazegraph or Virtuoso, especially for queries involving large result sets.

⛈️ RumbleDB 1.21.0 "Hawthorn blossom" 🌳 for Apache Spark | Run queries on your large-scale, messy JSON-like data (JSON, text, CSV, Parquet, ROOT, AVRO, SVM...) | No install required (just a jar to download) | Declarative Machine Learning and more

Query multiple APIs and DBs and join them in a single query

Fast Insert lightweight embedded SQL database