title: Google Cloud Sql Second Generation Utf8Mb4 Encoding
body: <p>We are using Google Cloud Sql Second Generation with our AppEngine application.
  However today we've discovered some problem, we cannot insert emoji characters to our database because we cannot change some server flags to utf8mb4 character encoding.</p>
  
  <p>We've changed
  character_set_server flag to utf8mb4  but it wasnt enough</p>
  
  <p>We have to change:
  character_set_system
  character_set_client
  collaction_connection</p>
  
  <p>flags to utf8mb4 also, but second generation db is not allowing root user to change those flags.
  What can we do to solve this problem</p>
  
  <p>Does anyone have any idea about that?</p>
  
  <p>Thanks</p>