Re: Functional database

[amirouche]

Le dim. 11 févr. 2018 à 0:44, amirouche <address@hidden> a 
écrit :
> Le sam. 10 févr. 2018 à 8:34, amirouche <address@hidden> a 
> écrit :
> > Héllo all,
> >
> > # Introduction
> >
> > I figured a usecase for an immutable / functional database that works
> > like git.
>
> There is some data [0] about the subject applied to triple stores aka.
> subject-predicate-object data store [1]. So now, I understand that 
> triple
> store manipulates - triples.

To be precise, the public facing API doesn't expose unique identifiers 
generated
by the database system.

> The striking thing, is that it seems like the triple store
> doesn't require extra work to pull/push triples since FK / relations 
> / links
> are handle by the user.
>
> [0] http://events.linkeddata.org/ldow2013/papers/ldow2013-paper-01.pdf
> [1] https://en.wikipedia.org/wiki/Triplestore

There is another interesting article called R43ples [2] which is a very
similar idea to what I had in mind 3 years ago when trying to work with 
opencog
people [3]. That is use a triple store to store history and references 
of the
version-ed triple store! I did not dig much deeper into the paper even 
if it's
very well written with lots of diagrams.


[2] http://www.hyperdev.fr/projects/neon/10.1.1.662.1619.pdf
[3] https://wiki.opencog.org/w/User_talk:Amz3

I started the code but did not have time to compile it yet...

My plan demo add/del triples and ref at different points in database 
history
in the following days.


If you find the idea interesting and you'd like to help here are few 
tasks
that can be achieved independently:

- Create a parser for sparql query language and / or a guile DSL to 
achieve the same

- Create parser for turtle syntax 
https://en.wikipedia.org/wiki/Turtle_(syntax)

- Package microkanren for guix 
https://framagit.org/a-guile-mind/microkanren

- Update guile-gnome package to use guile 2.2.3 and create a graphical 
user interface
 that allows to: navigate the history (like a git graph), merge 
conflicting branches,
 make banana flavored ice cream.


Happy hacking!