I'd like to try another approach. The OrientDB client does not support multiple database connection. But what about thrid-party wrappers?
OrientDB is compatible with blueprints. Blueprints has the Sail module that provides SPARQL. SPARQL provide http://www.w3.org/TR/2013/REC-sparql11-federated-query-20130321/ federated query feature. That feature is reported as working here http://stackoverflow.com/questions/4841770/join-semantic-endpoints-in-sparql-query . And I found sail module that provides federation: http://mvnrepository.com/artifact/org.openrdf.sesame/sesame-sail-federation I wonder if I could combine all that software to get federation in OrientDB. Is mentioned components compatible with each other? Is that large stack is ever sane? On Monday, November 23, 2015 at 2:02:56 PM UTC+3, Luigi Dell'Aquila wrote: > > Hi, > > Unfortunately in current architecture you cannot execute queries that > involve multiple databases, so I'm afraid you have to do it at application > level > > Thanks > > Luigi > > 2015-11-22 19:22 GMT+01:00 scala solist <[email protected] <javascript:>> > : > >> I have two databases with identical scheme, that belongs to different >> users. I'd like to create view where this two databases are efficiently >> merged without actually creating third databases that holds contents of >> both. The view should seek both databases for objects in predefined order. >> That order is used to resolve possible conflicts. >> >> Can that be done with the orientdb engine? I understand that I always >> could rewrite queries to take into consideration not single but two >> databases, but this look tiresome and I would not like to reinvent the >> wheel. >> >> -- >> >> --- >> You received this message because you are subscribed to the Google Groups >> "OrientDB" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- --- You received this message because you are subscribed to the Google Groups "OrientDB" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
