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World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.

A Zig template for building DuckDB extensions

A list of Presto/Trino resources

P2PDB: A Peer-to-Peer Structured Data Trading System

Local-first federated analytics query engine using DuckDB.

Federated Query Engine over RDF Sources

A web application for interacting with Solid Pods including data upload and management, data sharing, data privacy editing, [federated] data querying, and query results sharing (developed for the CHIST-ERA TRIPLE project).

Demonstration of Presto Federated Queries using Ahana PrestoDB Sandbox on AWS

🌳 Performance Inspector and Plan Explorer for Federated Query Engines.

This example shows how to use the Union operation to combine data into a single federated query.

SPARQL service for OpenPredict, based on rdflib-endpoint