git-merge-driver VS terminusdb

You could make a custom merge driver for the conflicting file: https://github.com/Praqma/git-merge-driver

I investigated the option of using a custom git merge driver for a project where we were planning to version control a bunch of data files using git.

Here's a proof of concept python merge driver I bashed together at the time to auto-merge JSON objects: https://github.com/fcostin/jsonmerge_git_merge_driver

This never went anywhere near production, but it was very easy to put together something basic.

One complication with using a custom merge driver, as discussed by https://github.com/Praqma/git-merge-driver , is that they need to be configured inside the `.git/config` of the repo, which itself is not version controlled. So there's an additional config management overhead to rolling that out to everyone in a machine. Additionally, if outsourcing hosting for git repos, it may not be supported to install and configure a custom merge driver for merges conducted by the hosting platform (e.g. merges created by github.com pull request workflow).

One idea I had at the time was using external schema files (e.g. JSON schema for JSON files) to help guide/constrain the result of the merge. I never implemented it, but it should be possible. If the schemas were also version controlled in the same git repo that stores the data, you'd need to figure out which one (and which version) to load when resolving a merge conflict of a data file. There doesn't seem to be a well-supported robust way for a merge driver script to discover the source and destination branches, but there are some potentially fragile ways of doing it that work some of the time.

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.