ArangoDB vs PostgreSQL

ArangoDB is an open-source multi-model database that combines document, graph, and key-value data models in a single engine. It uses AQL (ArangoDB Query Language) for querying across all data models and supports distributed deployments.

PostgreSQL is Open-source relational database known for extensibility, SQL compliance, and a rich ecosystem of extensions.. It is available under a free model. This tool falls under the databases category.