Document Transformers can be used to modify the information returned about each documents in the results of a query.
Using Document Transformers
When executing a request, a document transformer can be used by including it in the fl parameter using square brackets, for example:
fl=id,name,score,[shard] |
Some transformers allow, or require, local parameters which can be specified as key value pairs inside the brackets:
fl=id,name,score,[explain style=nl] |
Read full article from Transforming Result Documents - Apache Solr Reference Guide - Apache Software Foundation
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