datahike VS terminusdb

Datahike [0] provides similar functionality to datomic and is open source. It lacks some features however that Datomic does have [1].

[0]: https://github.com/replikativ/datahike

You can also consider other durable Datalog options like datahike or datalevin which can work either as lib (SQLite style) or in a client-server setup; if you want to play with bi-temporality XTDB is a rock solid option with very good support and documentation.

Check https://github.com/replikativ/datahike

Oh really interesting. I didn't know about that. I was actually going threw the old Mendat code base and was considering using that.

I would really like a pure Rust version of Datomic for embed use cases.

There is all also Datahike, that is going in that direction too. It is maintained and actively developed.

https://github.com/replikativ/datahike

Having an Datomic like store backed by something like this.

https://github.com/replikativ/datahike

Is an Open Source variant of Datomic.

Lambdaforge wants to eventually have this work with CRDTs.

Using the Matrix ecosystem for this is quite interesting as it solves many problems for you already.

Unlike some other commenters, I agree that graph models are usually a better fit for most data than relational models. There's been some interesting work in recent years developing this idea: in the Clojure world there's Datomic, XTDB, and a host of competitors, all of which build on work from Semantic Web/SPARQL/triplestores and logic programming. Some are even intended to be used as primary datastores: they support some amount of schema and constraints, have well-defined consistency and ACID guarantees, etc. This makes them unlike graph databases like Neo4J and others, which fill an architectural role more like Elasticsearch as a read-optimization tool. Here's an interesting talk making a case for triple-based databases.

Have a look at https://github.com/replikativ/datahike and https://github.com/replikativ/datahike-postgres

There is now a datahike linux native image preview available: https://github.com/replikativ/datahike/releases/tag/preview

And implemented as a full-on datastore queried via Datalog: https://github.com/replikativ/datahike

How about some succinct data structures and delta encoding for modern databases [1]. Succinct data structures are a family of data structures which are close in size to the information theoretic minimum representation (while still being queryable).

[1] https://github.com/terminusdb/terminusdb/blob/dev/docs/white...

There are already some open source alternatives to datomic. TerminusDB (https://github.com/terminusdb/terminusdb) for example is implemented in prolog (and Rust) so has the datalog variant query power that makes datomic so powerful. If you want free as in speech (thou I love free beer).

You should try it out. You can either use TerminusDB by downloading it from our repositories, or you sign up for a free TerminusCMS account at dashboard.terminusdb.com.

Hey, I'm trying to install TerminusDB. They have the python client installation instructions here

Hi, I wanted to check if there's a NixOS package for TerminusDB

terminusdb

Head on over to GitHub for a full list of enhancements and bug fixes.