title: RDFStore/Query Performance
body: <p>I trying to use Semantic data model for my application because of its extensibility. I have read Performance/Scale comparisons among RDFStores (Sesame, Jena etc) with their own pros and cons</p>
  
  <p>However, I am wondering whats the impact on query performance of semantic data stores vs traditional mysql queries and databases.</p>
  
  <p>RDBMS have optimized indexes and query plans for faster responses. Are we loosing those with semantic data stores? Is there a study?</p>
  
  <p>Can you please provide pointers/resources? </p>