Re: [Neo4j] REST indexes questions
Javier, great work with the Python bindings! I can't answer for all of the questions, but trying inline. I think the core guys might have some more insights here. On Wed, Apr 13, 2011 at 9:46 PM, Javier de la Rosa ver...@gmail.com wrote: Hi all, at first congratulations for the new GA release of Neo4j. Really great job. I'm now developing the support for indexes and I have changed a bit the compatibility with neo4j.py due to currently it doesn't work with nodes indexes neither relationships indexes. But I have some related questions: 1. How can I remove an index? Removing an index is a good catch, I don't think there is a method for completely removing an Index right now. We should add that for 1.4 since this is really a bug in the API unless I am missing something here. 2. Would it be possible, when I get the info of a node, also provide the indexes in which the node has been indexed? Not really, as Indicies are independent XA resources from the kernel. You can loop through the existing indexes and check if the node is in there, but I imagine that is a costly operation. Mattias, is there any easy way to do this? If yes, we could add it as an extension or directly into the Node-representation I think. 3. What it happens if I remove a node that it's already indexed? Is it removed from the index too? Same here. If you don't include a node-removal from the index in the same transaction, the index is going to be stale. All of the above behaviors are target for an auto-index feature that would help you with this - also for 1.4 planned. 4. What's the real difference between the query exact method and the advanced query? I mean, using only the advanced query, are you able to query in exact mode? It is referring to the exposure of the get vs. query interface of the Index API, see http://components.neo4j.org/neo4j/1.3/apidocs/org/neo4j/graphdb/index/Index.html . Thanks so much for the feedback! This is very valuable input for the next cycles. Keep it coming Javier! /peter ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] REST indexes questions
Thank you, Peter. It's gonna be exciting the future version 1.4 :-) On Thu, Apr 14, 2011 at 16:33, Peter Neubauer peter.neuba...@neotechnology.com wrote: Javier, great work with the Python bindings! I can't answer for all of the questions, but trying inline. I think the core guys might have some more insights here. On Wed, Apr 13, 2011 at 9:46 PM, Javier de la Rosa ver...@gmail.com wrote: Hi all, at first congratulations for the new GA release of Neo4j. Really great job. I'm now developing the support for indexes and I have changed a bit the compatibility with neo4j.py due to currently it doesn't work with nodes indexes neither relationships indexes. But I have some related questions: 1. How can I remove an index? Removing an index is a good catch, I don't think there is a method for completely removing an Index right now. We should add that for 1.4 since this is really a bug in the API unless I am missing something here. 2. Would it be possible, when I get the info of a node, also provide the indexes in which the node has been indexed? Not really, as Indicies are independent XA resources from the kernel. You can loop through the existing indexes and check if the node is in there, but I imagine that is a costly operation. Mattias, is there any easy way to do this? If yes, we could add it as an extension or directly into the Node-representation I think. 3. What it happens if I remove a node that it's already indexed? Is it removed from the index too? Same here. If you don't include a node-removal from the index in the same transaction, the index is going to be stale. All of the above behaviors are target for an auto-index feature that would help you with this - also for 1.4 planned. 4. What's the real difference between the query exact method and the advanced query? I mean, using only the advanced query, are you able to query in exact mode? It is referring to the exposure of the get vs. query interface of the Index API, see http://components.neo4j.org/neo4j/1.3/apidocs/org/neo4j/graphdb/index/Index.html . Thanks so much for the feedback! This is very valuable input for the next cycles. Keep it coming Javier! /peter -- Javier de la Rosa http://versae.es ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] REST indexes questions
1. Removing an index is not exposed, possible to add with a server plugin/extension. 2. One can easily store the index-names as node properties with the indexing operation - that's also something that could be automated via an server plugin. 3. Same goes for auto removal, btw. it is also necessary for relationships, so perhaps an operation removing a node and its relationships (and all of those from their indexes) would be sensible. 4. Query exact is looking for the exact match, Advanced Query takes also lucene query strings and partial matches like (Matr*), for advanced-query fulltext matches the values must have been indexed on a fulltext index. It should be a matter of a few hours of coding to provide a server plugin that does the above. Cheers Michael Am 13.04.2011 um 21:46 schrieb Javier de la Rosa: Hi all, at first congratulations for the new GA release of Neo4j. Really great job. I'm now developing the support for indexes and I have changed a bit the compatibility with neo4j.py due to currently it doesn't work with nodes indexes neither relationships indexes. But I have some related questions: 1. How can I remove an index? 2. Would it be possible, when I get the info of a node, also provide the indexes in which the node has been indexed? 3. What it happens if I remove a node that it's already indexed? Is it removed from the index too? 4. What's the real difference between the query exact method and the advanced query? I mean, using only the advanced query, are you able to query in exact mode? -- Javier de la Rosa http://versae.es ___ 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] REST indexes questions
Thank you very much for the aclarations, Michael. Regards! On Thu, Apr 14, 2011 at 18:55, Michael Hunger michael.hun...@neotechnology.com wrote: 1. Removing an index is not exposed, possible to add with a server plugin/extension. 2. One can easily store the index-names as node properties with the indexing operation - that's also something that could be automated via an server plugin. 3. Same goes for auto removal, btw. it is also necessary for relationships, so perhaps an operation removing a node and its relationships (and all of those from their indexes) would be sensible. 4. Query exact is looking for the exact match, Advanced Query takes also lucene query strings and partial matches like (Matr*), for advanced-query fulltext matches the values must have been indexed on a fulltext index. It should be a matter of a few hours of coding to provide a server plugin that does the above. Cheers Michael Am 13.04.2011 um 21:46 schrieb Javier de la Rosa: Hi all, at first congratulations for the new GA release of Neo4j. Really great job. I'm now developing the support for indexes and I have changed a bit the compatibility with neo4j.py due to currently it doesn't work with nodes indexes neither relationships indexes. But I have some related questions: 1. How can I remove an index? 2. Would it be possible, when I get the info of a node, also provide the indexes in which the node has been indexed? 3. What it happens if I remove a node that it's already indexed? Is it removed from the index too? 4. What's the real difference between the query exact method and the advanced query? I mean, using only the advanced query, are you able to query in exact mode? -- Javier de la Rosa http://versae.es ___ 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 -- Javier de la Rosa http://versae.es ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
