title: concatenating string to solr field value while searching?
body: <p>is it possible to concatenate string to solr field while we are searching 
  Example:
  localhost:8983/solr/collection1/select?q=item_type%3Apostings&amp;wt=json&amp;indent=true</p>
  
  <p>now i have one field id i need to append text "locality_" before every id value.so that i need not to to for loop on large data set.</p>