All, One of the questions I've been asked to answer / prove out is around the question of highlighting query matches in responses.
BTW - One assumption I'm making is that highlighting is basically a function of storing offsets for terms / tokens at index time. If that's not right, I'd be grateful for pointers in the right direction. My underlying need is to get highlighting on search term matches for returned documents. I need to choose between doing this in Solr and using an external document store, so I'm interested in whether Solr can provide the doc store with the information necessary to identify which section(s) of the doc to highlight in a query response... A few questions: 1. This page doesn't say a lot about how things work - is there somewhere with more information on dealing with offsets and highlighting? On offsets and how they're handled? https://cwiki.apache.org/confluence/display/solr/Highlighting 2. Can I return offset information with a query response or is that internal only? If yes, can I return offset info if I have NOT stored the data in Solr but indexed only? (Explanation: Currently my project is considering indexing only and storing the entire text elsewhere -- using Solr to return only doc ID's for searches. If Solr could also return offsets, these could be used in processing the text stored elsewhere to provide highlighting) 3. Do I assume correctly that in order for Solr highlighting to work correctly, the text MUST also be stored in Solr (I.E. not indexed only, but stored=true) Many thanks...
