I'm trying to learn more about using BlockJoinQuery in our search application and I came across this blog post by Mike McCandless: http://blog.mikemccandless.com/2012/01/searching-relational-content-with.html
The blog post mentions that it is possible to do joins that can be nested (parent to child to grandchild) but does not elaborate further. Could someone please explain how to formulate such a query for the following use case? Let's say we want to create a music search application where the lucene index documents are nested as such: music genre -> band -> band members Some sample data: Rock -> Pink Floyd -> Roger Waters, David Gilmour, Richard Wright, Nick Mason Pop -> Michael Jackson -> Michael Jackson Alternative/Indie -> Waters -> Van Pierszalowski We would like to search for the term "waters" and be able to find out what the genre/band are. In the case of the sample data above, we would expect the result set to include 'Rock/Pink Floyd' because of Roger Waters and 'Alternative/Indie' because of the Waters band name. It seems like this would be a good candidate for using nested BlockJoinQuery queries. Thanks, Hamed -- View this message in context: http://lucene.472066.n3.nabble.com/Nested-BlockJoinQuery-tp3733885p3733885.html Sent from the Lucene - Java Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
