title: Does cloud sql for postgres beta support dblink?
body: <p>We recently migrated to use hosted gcloud sql for postgres. Am curious to know how i can install dblink because </p>
  
  <p><code>CREATE EXTENSION dblink;</code></p>
  
  <p>exits with this error, </p>
  
  <p><code>ERROR:  could not open extension control file "/share/extension/dblink.control": No such file or directory
  </code></p>