Hi all
I have just completed a set of GEOFF enhancements within py2neo (as yet
only available from GitHub). Named parameters (hooks) and composite
descriptors are now supported, please see the following sample file for an
illustration of the new capabilites:
https://github.com/nigelsmall/py2neo/b
+1 on some uniqueness indication. However, I am not sure how to handle
UNIQUENESS_NONE and the potential cycles that will arise ...
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter
A recent thread prompted me to think about this again.
Today, Cypher guarantees that no two points in the matching pattern will
contain the same node or relationship. Given the pattern (a)-->(b), in no
matched subgraph will a and b contain the same node.
The only exception to this is for variable
On Tue, Nov 22, 2011 at 6:21 PM, Peter Neubauer <
peter.neuba...@neotechnology.com> wrote:
> Mmh,
> if you have two different bound variables n and z, shouldn't n
> automagically be different from z? Got a test case for this where n=z?
>
Yeah, you're right. I wouldn't expect to have the same node
Mmh,
if you have two different bound variables n and z, shouldn't n
automagically be different from z? Got a test case for this where n=z?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitt
Could you get me the full curl script to recreate?
/peter
Sent from my phone, please excuse typos and autocorrection.
On Nov 22, 2011 5:35 PM, "danielb" wrote:
> Hi Peter,
>
> I could now register the spatial index 'geom' to my database (I was missing
> the zip file) - thanks so far.
>
> cypher
Hi Peter,
I could now register the spatial index 'geom' to my database (I was missing
the zip file) - thanks so far.
cypher> start n=node:geom('bbox:[10.0020654, 10.0020654, 48.4126496,
48.4126496]')
cypher> return n
cypher>
==> +---+
==> | n |
==> +---+
==> +---+
==> 0 rows, 24 ms
So zero res
I noticed work on supernodes being committed to GitHub. Looking forward seeing
this and in 1.6-SNAPSHOT. I would like to test this sooner rather than later.
The node#getDegree methods are a great addition.
Niels
> From: peter.neuba...@neotechnology.com
> Date: Tue, 22 Nov 2011 15:51:15 +0100
>
That works nice :)
Tks
On Tue, Nov 22, 2011 at 4:21 PM, Tero Paananen wrote:
> > Is it possible to filter the results to skip the start node?
> >
> > For example, using the koans dataset, find the enemy of my enemy (should
> be
> > my friends :) )
> >
> > START n=node(1)
> > MATCH (n)-[:ENEMY_OF
> Is it possible to filter the results to skip the start node?
>
> For example, using the koans dataset, find the enemy of my enemy (should be
> my friends :) )
>
> START n=node(1)
> MATCH (n)-[:ENEMY_OF]->(x)-[:ENEMY_OF]->(z)
> return distinct z
>
> I understand that "The doctor" node 1, should ap
Hi there, really beginner query, almost ashamed :)
Is it possible to filter the results to skip the start node?
For example, using the koans dataset, find the enemy of my enemy (should be
my friends :) )
START n=node(1)
MATCH (n)-[:ENEMY_OF]->(x)-[:ENEMY_OF]->(z)
return distinct z
I understand
Daniel,
just updated the installation instruction in
https://github.com/neo4j/spatial, look under "Using the Neo4j Spatial
Server plugin". Does that help?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/i
Hi Peter,
How do I add the Spatial plugin? I only have Cypher and Gremlin as server
extensions installed. I unzip Neo4j spatial into the plugins folder and then
send the JSON via curl to the database. But he can't find any of the needed
classes. Which files do I need from the spatial project and w
Thank you all for participating and give your votes to the options you feel
are more important.
For sure it'd be great to have another platform to do this that could be
somehow integrated with GitHub, ( I just created the poll with doodle
because it was the one I found after a quick google search w
Hey Peter,
thanks for the hint. I currently chose another way to store time series.
I'll try to use versioned edges like so:
node_a --- edge_a (t1) --> node_b
If there is an update operation on node b at time t2, a copy of b will
be created and referenced like so:
node_a -- edge_a(t1) --> nod
thanks for the response(s)! The hardware I'm testing on is not the best and
only 4G of ram so I'm limited, but this seems the best opportunity for me to
learn this...that being said...
>> For incremental imports, stitching osm files together, we re-activate the
>> old code that tests the lucene
Uservoice seems great. If rapportive uses it,
http://feedback.rapportive.com/forums/42557-general then it is good in
my book. I think we should try it if we can integrate this with GIThub
issues.
Pablo, impressive feedback on http://www.doodle.com/wg8k77vwq6b654bv !
I think Mattias will be delight
Peter,
A redis index provider sounds great. Blue Redis (Redis Blueprints) has some
ideas in it, but I think they can be improved on and adapted to neo4j.
Transactional indexes creation sounds like what I need.
I have also thought about if I am doing something like tagging a resource,
there are se
Avi,
we are in the process to get out a nicer base framework for
transactional index creation, and an index provider for redis.
Meanwhile, if you want, you could look into the BerkelyDB index that I
tried to cook together (no guarantees there),
https://github.com/peterneubauer/bdb-index and see if
Daniel,
you need to make sure to load the spatial index first witha custom
config, otherwise lucene is the default index provider and will
"shadow" the lazily created and loaded index. See
https://github.com/neo4j/spatial/blob/master/features/start-and-stop.feature#L16
for the example. Start with
Hi together,
That would be cool. Atm I am deleting the data folder, that works too for my
testing purpose. I have played around with cypher and encounter some
problems. I have OSM nodes in the database and I 'guess' they have a spatial
index on the geometry (lat, lon). The view on the server admin
I think the main overhead comes from parsing the JSON (it's not streamed
parsing imho).
That's why I suggest you try to split your big file into smaller ones (e.g.
your 1.5k ones or half the size).
And then execute multiple requests in parallel to the neo4j server to import
the data.
With your
Hi there,
On Tue, Nov 15, 2011 at 6:50 PM, vistorve wrote:
> I setup visualvm with a jmx connection to the server running neo4j I wasn't
> able to CPU profiling working, it had an error message saying
> getThreadCpuTime was expecting long but got something else. I do have thread
> and heap dumps
Jure,
for this, I think there is no explicit support in Neo4j. I guess you
will have to iterate and build up an in-memory list of the unique
RelTypes as you go.
Anyone having a better idea?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
L
I did some initial work on incremental imports back in 2010, but stopped
due to some complications:
- We needed to mix lucene reads and writes during the import (read to
check if the node already exists, so we don't import twice) and this
performs very badly in the batch inserter. We deci
On Tue, Nov 22, 2011 at 10:46 AM, serge wrote:
> what do you think of this post ?
>
> http://blog.pinboard.in/2011/11/the_social_graph_is_neither/
>
His first point, that modeling the social graph accurately is impossible is
of course true. It is impossible to model reality exactly like it is,
b
Daniel,
true, we should upgrade this to 1.5. Michael, can we do it?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org
On Tue, Nov 22, 2011 at 10:20 AM, Peter Neubauer <
peter.neuba...@neotechnology.com> wrote:
> Maybe,
> but that means that every index needs to have the notion of sorting
> and ordering?
>
I would be nice if we can introspect and see if the indexes available
support ordering.
Andrés
what do you think of this post ?
http://blog.pinboard.in/2011/11/the_social_graph_is_neither/
--
View this message in context:
http://neo4j-community-discussions.438527.n3.nabble.com/the-social-graph-is-neither-blog-post-tp3527242p3527242.html
Sent from the Neo4j Community Discussions mailing li
Maybe,
but that means that every index needs to have the notion of sorting
and ordering?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://w
Gregory,
incremental loads (and thus, restarts of OSM imports) are a feature we
want to add later on, but it's not in there yet. This would also mean
we could stitch in other areas on demand, and support submitting
changesets back to OSM or at least capture them, so you as an OSM
based app can cont
Hey Andrew,
like Peter hints at, webadmin itself does not currently support that kind
of customization as a proper feature. Howerver, again like Peter points
out, it is all on Github, and you are free to create your own personalized
version of it :)
Just keep in mind that you will have to keep yo
As a parameter to the index GET perhaps?
GET .../index/node/myindex?query=name:*&sort=GivenName&order=desc
2011/11/22 Peter Neubauer
> I agree.
> Sending arbitrary Groovy is not what you want a database to execute. Do you
> see any good index - neutral way to expose this? It's even very relevan
33 matches
Mail list logo
