EdgeDB is a relational database that stores and describes the data as strongly typed objects and relationships between them.
EdgeDB is built on top of PostgreSQL, inheriting all its core strengths: ACID compliance, performance, and reliability.
strict, strongly typed schema;
powerful and clean query language;
ability to easily work with complex hierarchical data;
built-in support for schema migrations.
EdgeDB is not a graph database: the data is stored and queried using relational database techniques. Unlike most graph databases, EdgeDB maintains a strict schema.
EdgeDB is not a document database, but inserting and querying hierarchical document-like data is trivial.
EdgeDB is not a traditional object database, despite the classification, it is not an implementation of OOP persistence.