I will say ElasticSearch features heavily in our infrastructure elsewhere, but for the Person API product, it's purely a primary-key lookup. My coworker wrote

I will say ElasticSearch features heavily in our infrastructure elsewhere, but for the Person API product, it's purely a primary-key lookup. My coworker wrote a bit about how the search functionality of our offering works here: http://www.fullcontact.com/blog/sherlock_search_engine_that_does/ http://www.fullcontact.com/blog/sherlock_search_engine_that_... That might make more sense why we do PK lookups.