hello, someone could tell me which file /where to modify batch importer so that to create relationships like:
Merge (a)-[:REL]-(b) On create set r.weight = 123 ? thank you! Il giorno sabato 16 agosto 2014 16:34:52 UTC+2, gg4u ha scritto: > > Hi Mattias, > > I see. > So how the relationships and nodes are created: using *create *or *merge* > ? > > I think merge would solve the issue for a check on duplication of > relationships, > especially if the directions of connection could be specified or > unspecified. > > Java is not my thing, maybe someone can appoint for where to change the > query in the batch importer to avoid duplication with smtg like: > > merge a-[r]-b > > ? > > Il giorno venerdì 15 agosto 2014 14:03:16 UTC+2, Mattias Persson ha > scritto: >> >> The batch inserter >> <http://docs.neo4j.org/chunked/2.1.3/javadocs/org/neo4j/unsafe/batchinsert/BatchInserter.html> >> >> does no such checks, no >> >> >> On Thu, Aug 14, 2014 at 6:54 PM, gg4u <[email protected]> wrote: >> >>> Hi, >>> >>> a quick note on the batch importer: >>> >>> does it import the relationships with an equivalent *create ()-[]->() * >>> or *merge ()-[]-()* ? >>> >>> In order to reduce the size of the graph, I would like to avoid to have >>> duplicate relationships, in the sense that if a rel >>> a-[]-b exist, that is equivalent to b-[]-a >>> and ignore the latter. >>> >>> In case of a weighted graph, does merge ignore b-[r]-a if a-[r]-b exist >>> but r >>> has different weight? >>> >>> thank you ! >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Neo4j" 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. >>> >> >> >> >> -- >> Mattias Persson >> Neo4j Hacker at Neo Technology >> > -- You received this message because you are subscribed to the Google Groups "Neo4j" 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.
