Re: [Neo4j] Neoclipse on OS X Lion
Hi! I just updated the IMDB example to use Neo4j 1.5, the code is here: https://github.com/neo4j-examples/imdb (the wiki says otherwise ... I'll fix that) Neoclipse 1.5 is available here: http://neo4j.org/download/ Neoclipse is tied to specific Neo4j versions, and if an database needs to be updated to a more recent format, that has to happen outside of Neoclipse for now. /anders On 11/23/2011 09:00 PM, Stefan Arentz wrote: On 2011-11-23, at 12:35 PM, Stefan Arentz wrote: When running Neoclipse on Lion (10.7.2) with the latest Java 10.6, the Eclipse menu bar is missing. Is this a known problem? Is there a workaround? Ahh so it seems the tool does not actually have a menu bar. To open a database you have to go to the settings and change the database location. Hmm. Is there a way to make this work with the IMDB demo? It complains about the DB format not being the same (0.9.8?). I thought this was a generic tool to open existing databases and browse them visually. That would help me debug / understand some things in a big way I think. S. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] allSimplePaths performance
Hi guys, I have a graph of about 2.5M nodes and 8M relationships and I am trying to find all simple paths between two nodes with maximum depth of 8. The allSimplePaths graph algo works well for maximum depth of 5, but for 8 it runs really long (I didn't even wait for it to finish). So I thought it's just that the graph is too complicated and the search operation is very expensive. On the other hand I noticed that shortestPath and pathsWithLength both work fast. So I tried this experiment: - Run shortestPath and record the shortest length - Iterate from the shortest length to max_depth - Run pathsWithLength and append the results - And it turns out to be working really well.. much, much faster than the allSimplePaths solution, which I found quite baffling, since the latter solution should be doing more work to accomplish the same task. Maybe it's just with my graph, but it's still weird. Best regards, Petar ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] allSimplePaths performance
Petar, very cool if this worked out. Maybe you could write up a testcase that verifies that the results are the same, and then put this as a fork to the graphalgo package? Sounds like a great addition if this works out? 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 - NOSQL for the Enterprise. http://startupbootcamp.org/ - Öresund - Innovation happens HERE. On Thu, Nov 24, 2011 at 11:42 AM, Petar Dobrev peter.dob...@gmail.com wrote: Hi guys, I have a graph of about 2.5M nodes and 8M relationships and I am trying to find all simple paths between two nodes with maximum depth of 8. The allSimplePaths graph algo works well for maximum depth of 5, but for 8 it runs really long (I didn't even wait for it to finish). So I thought it's just that the graph is too complicated and the search operation is very expensive. On the other hand I noticed that shortestPath and pathsWithLength both work fast. So I tried this experiment: - Run shortestPath and record the shortest length - Iterate from the shortest length to max_depth - Run pathsWithLength and append the results - And it turns out to be working really well.. much, much faster than the allSimplePaths solution, which I found quite baffling, since the latter solution should be doing more work to accomplish the same task. Maybe it's just with my graph, but it's still weird. Best regards, Petar ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Spatial build / run problems
Hi Peter, I now have a graph with the 'geom' index + testnode from the above code and imported some OSM data afterwards. I now want to find 2 nodes by bbox query - 550349 and 205372 (see http://dl.dropbox.com/u/18693700/graph.png). How can I achieve this? If I query for the bbox I should at least find the corresponding GEOM nodes and then traverse over the incoming edge? I can for example do the following: cypher start n=node:node(way_osm_id = '119810554') cypher return n cypher == +--+ == | n | == +--+ == | Node[550349]{way_osm_id-119810554,oneway-BOTH,timestamp-1309673329000,highway-residential,name-Frauenstraße,version-2} | == +--+ == 1 rows, 168 ms In the posts before I could query the geometry with index 'geom'. The index manager only has the following entries: node lucene {_blueprints:type:MANUAL, type:exact} relation lucene {_blueprints:type:MANUAL, type:exact} geom spatial {_blueprints:type:MANUAL} way lucene {_blueprints:type:MANUAL, type:exact} changeset lucene {_blueprints:type:MANUAL, type:exact} user lucene {_blueprints:type:MANUAL, type:exact} I also have uploaded the complete folder of Neo4j spatial + graph.db: http://dl.dropbox.com/u/18693700/neo4j_spatial_osm_graphdb.rar Regards, Daniel -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Spatial-build-run-problems-tp3515519p3533548.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] Neo4j Data Capacities
I've read that Neo4j has data capacity limitations (http://docs.neo4j.org/chunked/milestone/capabilities-capacity.html). I would like to confirm my understandings that the node, properties, and relationships limitations are for each type (e.g. AND condition), not an either/or (e.g. OR condition). Neo4j can hold: * ~34 billions nodes, AND * ~34 billion relationships, AND * ~68 billion properties So I could theoretically have a single graph with 34 billion nodes, where each node had two properties and a single relationship. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533552.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Spatial build / run problems
Daniel, the OSM import is loaded into its own layer corresponding to the dataset file name as a default I think (there should be a layer node created fro it, much in the same way as for the 'geom' index. So, if you load that layer the same way as an index provider as you did with the 'geom' index, you should be able to do just that. 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 - NOSQL for the Enterprise. http://startupbootcamp.org/ - Öresund - Innovation happens HERE. On Thu, Nov 24, 2011 at 1:52 PM, danielb danielbercht...@gmail.com wrote: Hi Peter, I now have a graph with the 'geom' index + testnode from the above code and imported some OSM data afterwards. I now want to find 2 nodes by bbox query - 550349 and 205372 (see http://dl.dropbox.com/u/18693700/graph.png). How can I achieve this? If I query for the bbox I should at least find the corresponding GEOM nodes and then traverse over the incoming edge? I can for example do the following: cypher start n=node:node(way_osm_id = '119810554') cypher return n cypher == +--+ == | n | == +--+ == | Node[550349]{way_osm_id-119810554,oneway-BOTH,timestamp-1309673329000,highway-residential,name-Frauenstraße,version-2} | == +--+ == 1 rows, 168 ms In the posts before I could query the geometry with index 'geom'. The index manager only has the following entries: node lucene {_blueprints:type:MANUAL, type:exact} relation lucene {_blueprints:type:MANUAL, type:exact} geom spatial {_blueprints:type:MANUAL} way lucene {_blueprints:type:MANUAL, type:exact} changeset lucene {_blueprints:type:MANUAL, type:exact} user lucene {_blueprints:type:MANUAL, type:exact} I also have uploaded the complete folder of Neo4j spatial + graph.db: http://dl.dropbox.com/u/18693700/neo4j_spatial_osm_graphdb.rar Regards, Daniel -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Spatial-build-run-problems-tp3515519p3533548.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
Yes. However, before that you will probably run into other limitations, like file sizes, IO and RAM. That is why we are a bit careful about just going to Longs or UUIDs. Anything you are thinking of in particular? 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 - NOSQL for the Enterprise. http://startupbootcamp.org/ - Öresund - Innovation happens HERE. On Thu, Nov 24, 2011 at 1:55 PM, bm3780 bm3...@gmail.com wrote: I've read that Neo4j has data capacity limitations (http://docs.neo4j.org/chunked/milestone/capabilities-capacity.html). I would like to confirm my understandings that the node, properties, and relationships limitations are for each type (e.g. AND condition), not an either/or (e.g. OR condition). Neo4j can hold: * ~34 billions nodes, AND * ~34 billion relationships, AND * ~68 billion properties So I could theoretically have a single graph with 34 billion nodes, where each node had two properties and a single relationship. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533552.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
Correct, is this an issue for your domain/data model? If so could you something about your use-case / context? Thanks a lot Michael Am 24.11.2011 um 13:55 schrieb bm3780: I've read that Neo4j has data capacity limitations (http://docs.neo4j.org/chunked/milestone/capabilities-capacity.html). I would like to confirm my understandings that the node, properties, and relationships limitations are for each type (e.g. AND condition), not an either/or (e.g. OR condition). Neo4j can hold: * ~34 billions nodes, AND * ~34 billion relationships, AND * ~68 billion properties So I could theoretically have a single graph with 34 billion nodes, where each node had two properties and a single relationship. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533552.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
I'm struggling to determine whether graph is a good fit for my domain. Most of my application is structured data. However, there are some parts that are of a social nature and a graph seems like a good match. I guess my fear is having all of the data in a single store, such as a graph, would cause problems down the road due to the limitations. Potentially I need to go down the path of polyglot persistence...storing just the social aspect of my data in the graph and storing the other data in a document store. I was try trying to simply our architecture by using only a graph, which would make OM much easier down the road. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533597.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
Yes, this is true, with a few notes: ID reuse complicates things a bit, meaning that if you delete nodes and relationships some ids will remain unused until you restart the database. Unclean shutdowns also may require scanning of the store files to determine unused records - the Config.REBUILD_IDGENERATORS_FAST parameter. So, the 35 bit address space is an upper limit. Normally this number of lost records is minuscule and easily recoverable so not a big deal. The 36 bit address space for properties is a low limit - the id reuse issue is practically non-existent for properties and since 1.5 there is no 1-1 correspondence between property id and property entry (the smallest ratio is 1:4). It all depends on the type of property - if it classifies as a short string or short array and how big (http://docs.neo4j.org/chunked/milestone/short-strings.html). So you could have a db with around 34 billion nodes with one OUTGOING relationship per node (so up to two per node, one INCOMING and one OUTGOING, since every relationship connects two nodes) and at least 68 billion properties, with a max of 68*4=272 billion properties. That's a lot of stuff! For reference, the smallest of those files will be the node store with a size of (9 bytes/record * 2^35 records)/(2^30 bytes/gigabyte) = 288 gigabytes. So you will start hitting machine restrictions before you run out of id space. cheers, CG On Thu, Nov 24, 2011 at 2:55 PM, bm3780 bm3...@gmail.com wrote: I've read that Neo4j has data capacity limitations (http://docs.neo4j.org/chunked/milestone/capabilities-capacity.html). I would like to confirm my understandings that the node, properties, and relationships limitations are for each type (e.g. AND condition), not an either/or (e.g. OR condition). Neo4j can hold: * ~34 billions nodes, AND * ~34 billion relationships, AND * ~68 billion properties So I could theoretically have a single graph with 34 billion nodes, where each node had two properties and a single relationship. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533552.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
If your data exceeds those amounts, then polyglot persistence is probably the way to go. Is the other part of your data also interconnected and rich or is it just the social part? All that not only depends on the storage but also a lot on the use-cases and scenarions how you are going to use that data in the future. What kinds of apps, services, user(-requests) you have to server. If you need any support for a PoC don't hesitate to contact us. Cheers, Michael Am 24.11.2011 um 14:13 schrieb bm3780: I'm struggling to determine whether graph is a good fit for my domain. Most of my application is structured data. However, there are some parts that are of a social nature and a graph seems like a good match. I guess my fear is having all of the data in a single store, such as a graph, would cause problems down the road due to the limitations. Potentially I need to go down the path of polyglot persistence...storing just the social aspect of my data in the graph and storing the other data in a document store. I was try trying to simply our architecture by using only a graph, which would make OM much easier down the road. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533597.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
All of my data is interconnected and rich. This is why I like the idea of a graph. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533673.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
No, we don't got that store, but we are developing new type of fraud detection solution to CC vendor. We have one asset what they are looking, but we like to add that real time correlation identify to solution. If we manage to get deal, then that solution will process that amount of transactions. We got numbers from CC company. -Pekka On Thu, Nov 24, 2011 at 3:54 PM, Michael Hunger michael.hun...@neotechnology.com wrote: Sounds great, so do you already reach those numbers? How do you store your data today? Michael Am 24.11.2011 um 14:53 schrieb bm3780: All of my data is interconnected and rich. This is why I like the idea of a graph. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533673.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
Hi Pekka, There are already (prominent) folks using Neo4j in that kind of credit card fraud detection. I hope some of them could volunteer their experiences (though not necessarily their proprietary clever stuff) on this list. Jim ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
Great, as you see. We are small startup www.epygg.com and one major CC company has contact us, because we have one method what is really wanted by them, i dont want to just give license for then, so i like to build some solution top of my technology. Key is that we can generate one field of data, what need to combine all traditional credit card payment data, in find correltation between those. Pekka On Thu, Nov 24, 2011 at 4:05 PM, Jim Webber j...@neotechnology.com wrote: Hi Pekka, There are already (prominent) folks using Neo4j in that kind of credit card fraud detection. I hope some of them could volunteer their experiences (though not necessarily their proprietary clever stuff) on this list. Jim ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Data Capacities
Ok, that previous answer was not representing my particular question thread. My application is a new initiative, so there is no existing data store. However, we do intent on ingesting other data sets to make our data more interesting by our users. Some of these data sets we are interested in is on the order of billions of nodes if we were to actually ingest them, so that is why we are trying to brainstorm on possible solutions. Our initial initiative, however, is to only store our own native data, which is as I said before very structured, however has some social aspects and the structured data itself is very interconnected to itself and other parts of structured data. -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Neo4j-Data-Capacities-tp3533552p3533729.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo4j Python Index Iteration
Hey Chris, I'm happy to inform you that this is already the case :) If you loop through the entire result, it automatically gets closed. /jake On Wed, Nov 23, 2011 at 8:42 PM, Chris Diehl cpdi...@gmail.com wrote: Hi Jake, As you know, with the current Neo4j Python bindings, one needs to close the index results after doing a lookup and iterating through the results. hits = idx['akey']['avalue'] for item in hits: pass # Always close index results when you are # done, to free up resources. hits.close() Would it be possible to return an object that automatically closes hits after iteration is complete? I'd love to encapsulate the index in a class that takes care of the close for me so I don't have to worry about inserting that somewhere later in my code. Not exactly sure how to pull that off... Chris -- Jacob Hansson Phone: +46 (0) 763503395 Twitter: @jakewins ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] allSimplePaths performance
Hi guys, I played around some more with alternative approach and it turns out the results are not equivalent. Since I cannot test it with the desirable max depth of 8 on my setup, I ran a test with max depth of 4. For a given test case, allSimplePaths returned 2 paths of length 2 and 3: (2624016)--[User_relation_6,9067449]--(2161113)--[PERSON_PERSON,7879807]--(2161112) (2624016)--[User_relation_6,9067448]--(142023)--[PERSON_ORG,1982010]--(2161113)--[PERSON_PERSON,7879807]--(2161112) The alternative approach found only the first one. (2624016)--[User_relation_6,9067449]--(2161113)--[PERSON_PERSON,7879807]--(2161112) Interestingly, if I add another relationship to the source node, which does not change the number of paths between the two nodes, the pathsWithLength approach finds also the second one. Am I doing something wrong or is it that pathsWithLength will not always return all paths with that length due to some greedy approach? The documentation for ShortestPath states that the algorithm will try to find a path: @param findPathsOnMaxDepthOnly if {@code true} then it will only try to find paths on that particular depth ({@code maxDepth}). Does that mean that it can also fail to find a path on the particular depth? The source of the testing program is here: https://gist.github.com/1391654 Output before adding the additional relationship: https://gist.github.com/1391668 Output after adding the additional relationship: https://gist.github.com/1391661 Neo4j version: 1.5 Thanks! Best regards, Petar On Thu, Nov 24, 2011 at 12:57 PM, Peter Neubauer peter.neuba...@neotechnology.com wrote: Petar, very cool if this worked out. Maybe you could write up a testcase that verifies that the results are the same, and then put this as a fork to the graphalgo package? Sounds like a great addition if this works out? 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 - NOSQL for the Enterprise. http://startupbootcamp.org/- Öresund - Innovation happens HERE. On Thu, Nov 24, 2011 at 11:42 AM, Petar Dobrev peter.dob...@gmail.com wrote: Hi guys, I have a graph of about 2.5M nodes and 8M relationships and I am trying to find all simple paths between two nodes with maximum depth of 8. The allSimplePaths graph algo works well for maximum depth of 5, but for 8 it runs really long (I didn't even wait for it to finish). So I thought it's just that the graph is too complicated and the search operation is very expensive. On the other hand I noticed that shortestPath and pathsWithLength both work fast. So I tried this experiment: - Run shortestPath and record the shortest length - Iterate from the shortest length to max_depth - Run pathsWithLength and append the results - And it turns out to be working really well.. much, much faster than the allSimplePaths solution, which I found quite baffling, since the latter solution should be doing more work to accomplish the same task. Maybe it's just with my graph, but it's still weird. Best regards, Petar ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Petar Dobrev Engineer Philanthropedia http://www.myphilanthropedia.org ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] allSimplePaths performance
There are several optimizations that the shortest path algo does that allSimplePaths doesn't, f.ex: * Traversal is bidirectional (it starts from the start AND the end simultaneously, although in the same thread) which means that the deeper the traversal goes the more it gains compared to a single directional traversal * It stops on the depth it finds the first hit on Shortest path algo is implemented from scratch to be optimized for just that, but allSimplePaths uses traversal framework which doesn't support bidirectional traversals yet, although there have been some experiments with that too so perhaps soon! 2011/11/24 Peter Neubauer peter.neuba...@neotechnology.com Petar, very cool if this worked out. Maybe you could write up a testcase that verifies that the results are the same, and then put this as a fork to the graphalgo package? Sounds like a great addition if this works out? 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 - NOSQL for the Enterprise. http://startupbootcamp.org/- Öresund - Innovation happens HERE. On Thu, Nov 24, 2011 at 11:42 AM, Petar Dobrev peter.dob...@gmail.com wrote: Hi guys, I have a graph of about 2.5M nodes and 8M relationships and I am trying to find all simple paths between two nodes with maximum depth of 8. The allSimplePaths graph algo works well for maximum depth of 5, but for 8 it runs really long (I didn't even wait for it to finish). So I thought it's just that the graph is too complicated and the search operation is very expensive. On the other hand I noticed that shortestPath and pathsWithLength both work fast. So I tried this experiment: - Run shortestPath and record the shortest length - Iterate from the shortest length to max_depth - Run pathsWithLength and append the results - And it turns out to be working really well.. much, much faster than the allSimplePaths solution, which I found quite baffling, since the latter solution should be doing more work to accomplish the same task. Maybe it's just with my graph, but it's still weird. Best regards, Petar ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Mattias Persson, [matt...@neotechnology.com] Hacker, Neo Technology www.neotechnology.com ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] [Cypher] ANY() and array properties
Is ANY() supposed to work with array properties? e.g. I have the following WHERE clause in my query: WHERE pa.position AND ANY(pos in pa.positions : pos = QB) However, I get a syntax error Probably missing quotes around a string pointed at the = sign. I can verify that pa.positions is an array by returning it directly. -Stephen -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Cypher-ANY-and-array-properties-tp3535052p3535052.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] [Cypher] ANY() and array properties
On Fri, Nov 25, 2011 at 1:40 AM, Stephen glur...@gmail.com wrote: Is ANY() supposed to work with array properties? e.g. I have the following WHERE clause in my query: It is supposed to, but it doesn't yet. Sorry about that... Andrés ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user