title: When does hive URL-encode partition key names?
body: <p>I have tried inserting partitions like 'a:b' into Hive (0.13), and sometimes it ends up with "a%3Ab".  Is that something Hive does (if so, when), or is there some other layer along the way?</p>
  
  <p><a href="https://issues.apache.org/jira/browse/HIVE-3679" rel="nofollow noreferrer">This issue</a> would indicate that Hive maintainers have seen this before.</p>