title: Elastic search query string regex
body: <p>I am having an issue querying an field (title) using query string regex.</p>
  
  <p>This works: <b>"title:/test/"</b><br>
  This does not : <b>"title:/^test$/"</b></p>
  
  <p>However they mention it is supported <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-regexp-query.html#regexp-syntax" rel="nofollow">https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-regexp-query.html#regexp-syntax</a></p>
  
  <p>My goal it to do exact match, but this match should not be partial, it should match the whole field value.</p>
  
  <p>Does anybody have an idea what might be wrong here?</p>