It's worth taking a look at the Firebird relational database.

Firebird can be used as an embedded DB or an client/server DB. It supports a wide variety of data types, is open source and cross-platform too.

It's a database that's rarely discussed here (a mystery why not). It certainly deserves wider attention.

Firebird features: https://firebirdsql.org/en/features/

I worked with a company a long time ago that was using Interbase as the backend for a few websites. It had the interesting property that if you were using the command line client to connect to the server, and you used ^Z to pause the client, then the server would hang for all clients until you resumed it.

I know it’s completely unreasonable to judge Firebird today for Interbase 20 years ago, but admit that’s still the first thing that pops to my mind.

Do you feel Firebird offers something SQLite doesn’t?

Nothing beats the nimbleness, simplicity and speed of SQLite, but it is not a client/server database engine (although it is often used for that purpose due to its speed).

Firebird can be used as a proper client/server database engine. It supports static data types and stored procedures (unlike SQLite). It sits somewhere between SQLite and PostgreSQL. So it may be worth evaluating if you don't want the heft of PostgreSQL but need features missing from SQLite.

> embedded DB

Sounds like it's not quite as embedded as SQLite? Seems like it just smushes the server into your app and spins that up from within. Also it only seems to be properly "embedded" on Windows (no macOS support and Linux is a bit weird?)

> Finally, you can't just ship libfbembed.so with your application and use it to connect to local databases. Under Linux, you always need a properly installed server, be it Classic or Super.

Does https://duckdb.org enforce types?

Agreed on all points. I'd also add that I miss table-valued functions in sqlite.

you can write your own table-valued, aggregate and window functions when you use better-sqlite3 (see https://github.com/JoshuaWise/better-sqlite3/blob/master/doc... see Database#function(), Database#aggregate(), Database#table()) in JavaScript.

This is really cool, thanks for pointing me to that. I'm still probably going to migrate to postgres because I'd like the functions to exist in the db and not just in code, so I can use them in ad-hoc queries.

But this is worth considering as an option.

Javascript does exactly wat it does but I don't see anybody rushing to praise it