I am not very familiar with EdgeDB but it is quite different to Prisma. EdgeDB is a database while Prisma is a database client. EdgeDB do provide their own clients to interface with the EdgeDB database but with Prisma you can connect to many different databases, e.g. PostgreSQL, SQLite, MongoDB etc
That's correct. Prisma is an ORM with all the pros and cons of being one. EdgeDB, on the other hand, is a brand new graph-relational database server, built on PostgreSQL.
ORMs have the ability to work with multiple RDBMS implementations, but for that they trade away expressive power and efficiency. Prisma is fairly slow, especially when your query is fetching multiple relationships, because it does multiple DB roundtrips to fetch parts of the result and reconstitutes it on the client. ORM APIs are generally very limiting, as there is no general way of doing server-side computation (e.g. do a comparison on a substring of a string property or simply do arithmetic).
EdgeDB does not have these problems, because its query language, EdgeQL, is designed to be efficiently embeddable into a programming language without any loss of expressive power or performance. At this moment we have a fully-featured TypeScript/JavaScript builder [1], with Python and Go coming soon.
