So you are implying that the parent filter allows subsets. The code at https://github.com/apache/lucene-solr/blob/master/lucene/join/src/java/org/apache/lucene/search/join/CheckJoinIndex.java#L46 implies that subset is not allowed. If I select a subset and invoke the checker, I get this IllegalStateException.
> On July 3, 2019 at 2:33 PM Michael Sokolov <msoko...@gmail.com> wrote: > > > Well for one thing, you might have other documents in the index that > are neither parents nor children (in this particular relation). Also, > consider a nested hierarchy - how can we automatically figure out > which "generation" or "level" of parent to select? > > On Wed, Jul 3, 2019 at 2:50 PM ANDREI SOLODIN <asolo...@comcast.net> wrote: > > > > After looking through the unit tests, I got it working. The problem was > > that I thought the parent filter in the ToParentBlockJoinQuery can be used > > to select a subset of parents. It appears that the parent filter must > > select ALL parents, not a subset. This is not explained in the javadoc. If > > you want to select a subset of parents (independently of the child query), > > ToParentBlockJoinQuery can not be used on its own, but rather as a clause > > in another query. > > > > It would be a nice enhancement to just automatically select all parents, I > > mean, it is already required to be the last document in the block, why do > > we need to provide a query for them? > > > > > On July 3, 2019 at 10:52 AM ANDREI SOLODIN <asolo...@comcast.net> wrote: > > > > > > > > > Thanks Mikhail. > > > > > > > > > I read through the javadoc and thought I was satisfying all the > > > preconditions. Obviously not :-) Is it this part that am I getting wrong: > > > "At search time you provide a Filter identifying the parents, however > > > this Filter must provide an BitSet > > > https://lucene.apache.org/core/8_1_1/core/org/apache/lucene/util/BitSet.html?is-external=true > > > per sub-reader."? If so, given the data above how do I properly create a > > > parent query? > > > > > > > > > > > On July 3, 2019 at 10:30 AM Mikhail Khludnev < > > > m...@apache.org mailto:m...@apache.org > wrote: > > > > > > > > > > > > On Wed, Jul 3, 2019 at 6:11 PM ANDREI SOLODIN < > > > > asolo...@comcast.net mailto:asolo...@comcast.net > wrote: > > > > > > > > > > > > > > > > > > > > This returns "id00003", which is unexpected. > > > > > > > > > > > > > > > > > > > Please check ToPBJQ javadoc. It's absolutely expected. > > > > > > > > > > > > -- > > > > Sincerely yours > > > > Mikhail Khludnev > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
