Mikhail Khludnev

I was recently on an airline flight with onboard entertainment. There was a good selection of movies, but look at the film navigation menu! It lacks the ability to nest different languages into a single movie item and facet selections based on the movie’s language. As a result, it wastes scre...

We’ve talked about searching nested parents and children with Solr Block Join. But we can go far beyond that, to searching siblings, grandchildren, and other descendants. This gives your customers more search options without forcing them to do a new search every time they add a search parameter....

The “law of unintended consequences” applies to using the block join query parser in Solr, just as it does to many other things in life (and software). Leave out certain query strings in Solr, and It seems to make no difference. … A frustrating personal experience with unfaceted searchRe...

SolrInputDocument has methods — getChildDocuments()and addChildDocument() — for nesting child documents into a parent document. XML and Javabin formats are now able to transfer them. JSON support is ongoing. Start by indexing a few t-shirts, as a sample product-SKU hierarchy us...

Join support is a highly-requested Solr feature, especially in e-commerce. So I repeated Erick Erickson’s benchmark test with block join support for Solr, and I want to share my observations on how BlockJoinQuery can maximize Solr/Lucene performance.  In this post and in the future,...