I also get a similar message about query undefined when doing the following:
1) From the navigation panel click "New" to create a new database
2) Enter the name of the database and create it. You're taken to the page listing all databases.
3) Click your new database. The page changes to the structure page for the new database, but at the bottom I see:
Notice in ./libraries/Util.class.php#1953
Undefined index: query