You have to replace all documents in the block (1 parent, 4 children in your example) to update any of the documents... only updating the child (or child + parent) will break the join...
There's also query-time joining coming in 3.6.0. Mike McCandless http://blog.mikemccandless.com On Thu, Mar 22, 2012 at 10:50 AM, kiwi clive <kiwi_cl...@yahoo.com> wrote: > Hello > > I've been looking at the BlockJoinQuery in Lucene 3.4.0 and would like to > clarify my understanding. > > Suppose we have a parent document that we index with (say) 4 child documents. > My understanding is that these go in as an atomic unit and allows us to query > and join across the documents. > > Now what say I wanted to update one of the child documents (only). If the > child document was update with a standard update, I presume the join to the > parent is broken. If I update using a Collection, is it necessary to reindex > all of the documents (4 children + pareent). > > And finally, if I updated one child using a collection with the parent, would > both of these documents require reindexing and loose their affinity with > other children ? > > Thanks, > C, --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
