title: SOLR Permissions / Filtering Results depending on Access Rights
body: <p>For example I have Documents A, B, C. User 1 must only be able to see Documents A, B. User 2 must only be able to see Document C. Is it possible to do it in SOLR without filtering by metadata? If I use metadata filter, everytime there are access right changes, I have to reindex.</p>
  
  <p>[update 2/14/2012] Unfortunately, in the client's case, change is frequent. Data is confidential and usually only managed by the owners which are internal users. Then the specific case is they need to be able to share those documents to certain external users and specify access levels for those users. And most of the time this is an adhoc task, and not identified ahead of time</p>