How does the magic work? What is inside the indexes? Why is a certain record found by a search, and another not?. The answer is in the inverted indexes. You can easily investigate them using the special Zebra schema zebra::index::fieldname. In this example you can see that the title index has both word (type :w) and phrase (type :p) indexed fields, http://localhost:9999/?version=1.1&operation=searchRetrieve&x-pquery=the&startRecord=1&maximumRecords=1&recordSchema=zebra::index::title

But where in the indexes did the term match for the query occur? Easily answered with the special Zebra schema zebra::snippet. The matching terms are encapsulated by <s> tags. http://localhost:9999/?version=1.1&operation=searchRetrieve&x-pquery=the&startRecord=1&maximumRecords=1&recordSchema=zebra::snippet

How can I refine my search? Which interesting search terms are found inside my hit set? Try the special Zebra schema zebra::facet::fieldname:type. In this case, we investigate additional search terms for the title:w index. http://localhost:9999/?version=1.1&operation=searchRetrieve&x-pquery=the&startRecord=1&maximumRecords=1&recordSchema=zebra::facet::title:w

One can ask for multiple facets. Here, we want them from phrase indexes of type :p. http://localhost:9999/?version=1.1&operation=searchRetrieve&x-pquery=the&startRecord=1&maximumRecords=1&recordSchema=zebra::facet::publisher:p,title:p