Ultimate Solr Guide:#14 Collapse and Expand Results in Solr

Today, I will like to introduce another important topic on Solr which almost invariably finds its use in most business applications. There is always a need to collapse data of the certain field. To facilitate this, we have an interesting implementation in Solr called the collapse and expand component.

The Collapsing query parser and the Expand component combine to form an approach to grouping documents for field collapsing in search results.

To read further, please continue here..