title: Is there a way to list column names in an undocumented but allowed ContentProvider in Android?
body: <p>Suppose that you have AbcContentProvider which allows you to query/update it with it's content:// url.</p>
  
  <p>Is it possible to see the names/values those can be updated or queried?</p>
  
  <p>(This would be similar to "select * from table_abc" in an sql query or like "Show tables" from a database table)</p>