From: Roel Janssen <roel@gnu.org>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: 26807-done@debbugs.gnu.org
Subject: bug#26807: [PATCH] graph: Add Cypher backend.
Date: Thu, 11 May 2017 16:29:44 +0200 [thread overview]
Message-ID: <8760h7xy93.fsf@gnu.org> (raw)
In-Reply-To: <rbuk25npji5.fsf@gnu.org>
Roel Janssen writes:
> Ludovic Courtès writes:
>
>> Hi,
>>
>> Roel Janssen <roel@gnu.org> skribis:
>>
>>> Ludovic Courtès writes:
>>>
>>>> Hello!
>>>>
>>>> Roel Janssen <roel@gnu.org> skribis:
>>>>
>>>>> From 0e9c95ef3473fa7066ccd5991b1c14400aaa7076 Mon Sep 17 00:00:00 2001
>>>>> From: Roel Janssen <roel@gnu.org>
>>>>> Date: Sat, 6 May 2017 23:15:03 +0200
>>>>> Subject: [PATCH] graph: Add Cypher backend.
>>>>>
>>>>> * guix/graph.scm (%cypher-backend): New variable.
>>>>
>>>> If Neo4j is free software and packageable (is it Java?), why not!
>>>
>>> Yes, it's Java, so a lot of work to package.
>>>
>>> Fortunately, there is also AgensGraph which is similar to the PostgreSQL
>>> package, and it supports openCypher as well. So I tried it, and the
>>> queries will work with the latest git checkout of AgensGraph. Their
>>> latest release does not support automatically creating labels for the
>>> nodes and edges, which was fixed in this commit:
>>>
>>> https://github.com/bitnine-oss/agensgraph/commit/5eaecc1d429a08165bb964013ab8ee5516a062e7
>>>
>>> So I think the output of what my patch produces should be fine for
>>> multiple implementations of openCypher.
>>
>> OK. Do these tools support interactive visualization in addition to
>> graph queries?
>
> Neo4j does that in a web browser, see:
> https://neo4j.com/developer/guide-data-visualization/
>
> AgensGraph does not AFAIK. It just looks like (and it is) a PostgreSQL
> prompt.
>
>>
>>>> Could you add a few lines in guix.texi under “Invoking guix graph”?
>>>> Maybe give an example invocation of cypher and explain how it differs
>>>> from the other backends (interactive features maybe?).
>>>
>>> Would the attached patch be fine for the manual?
>>
>> Yes, perfect (please squash it with the patch that adds the new
>> backend).
>>
>> Thank you!
>>
>> Ludo’.
>
> Great! I will do that.
Pushed in 5899fafbfefcd7682aec8f2caaaad3add678a3c4.
Thanks!
Kind regards,
Roel Janssen
prev parent reply other threads:[~2017-05-11 14:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-06 21:21 bug#26807: [PATCH] graph: Add Cypher backend Roel Janssen
2017-05-10 20:59 ` Ludovic Courtès
2017-05-11 12:57 ` Roel Janssen
2017-05-11 14:03 ` Ludovic Courtès
2017-05-11 14:15 ` Roel Janssen
2017-05-11 14:29 ` Roel Janssen [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://guix.gnu.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=8760h7xy93.fsf@gnu.org \
--to=roel@gnu.org \
--cc=26807-done@debbugs.gnu.org \
--cc=ludo@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/guix.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).