The update on my blog:
In SAP Hybris Commerce, the requests for the SOLR search engine are created by Query Builders. Simply put, these components convert the user queries to SOLR queries. Certainly, it is not possible to explain the search results if you don’t know what SOLR request was generated and why it contains particular conditions in the particular form.
Unfortunately, the official documentation is very sparse and lacks examples. I explain the differences between available query builders and Lucene Query Parsers. It might be a good complement to my article about search relevancy.
https://hybrismart.com/2017/08/16/hybris-solr-query-builders-and-search-relevance/
Hi, I'm Rauf Aliev. 