Hi Mikhail, There is already an issue open for supporting block join in Solr: https://issues.apache.org/jira/browse/SOLR-3076
Maybe you can attach your work in that issue and we can iterate from there. Martijn On 6 February 2012 14:54, Michael McCandless <luc...@mikemccandless.com> wrote: > > On Sun, Feb 5, 2012 at 11:43 PM, Mikhail Khludnev > <mkhlud...@griddynamics.com> wrote: > > > Thanks for resolving my hesitations. It allows me move forward. > > You're welcome! > > >> It looks like that's what your test case is testing for...? Does it pass? > > > > Of course it doesn't. > > the first reason is that BlockJoinWeight.scorer() > > http://svn.apache.org/viewvc/lucene/dev/trunk/modules/join/src/java/org/apache/lucene/search/join/ToParentBlockJoinQuery.java?view=markup > > has the opposite intention (btw, are you %100 sure?): > > * Children query is filtered by the given filter > > childWeight.scorer(readerContext, true, false, *acceptDocs*); > > * Parent filter is not constrained > > parentsFilter.getDocIdSet(readerContext, > > *readerContext.reader().getLiveDocs()*); > > That's why I asked for the rationale of filtered BJQ search. > > > > The also complication which I met is that > > AssertingIndexSearcher.wrapFilter() randomly switches from filtered > > search to FilteredQuery. > > http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/src/test-framework/java/org/apache/lucene/search/AssertingIndexSearcher.java > > it leads to IllegalStateException"parentFilter must return > > FixedBitSet; got "BitsFilteredDocIdSet. I suppose I can deal with it. > > Hang on -- there are 2 different filters here. > > The first one, the parentsFilter that you pass to > ToParent/ChildBlockJoinQuery, is very specific: it must identify which > docs are parent docs. This is unchangeable: every BJQ must use this > same filter, since what is parent and what is child was determined at > indexing time when you indexed the blocks. It must produce a > FixedBitSet per segment (using CachingWrapperFilter does so). > > The second filter, is the optional filter the outside app can pass to > IndexSearcher.search -- it's this filter that I was describing in my > last response (ie, that it will be used in the "to" document space, > only). This filter is obviously free to change per query, depending > on what the app is doing... > > Mike > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: dev-h...@lucene.apache.org > -- Met vriendelijke groet, Martijn van Groningen --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
