* If you're editing a table and you rename a field which existed BEFORE you
   started editing, and then try to add a new field with the previous field's
   old name, it will get confused. I'm not sure if there's anything I can do
   about that, 'cos until the changes are committed, we'll need to know about
   the pending rename under the old name so we know what to rename... Uhh... I
   need some sleep now :)

 * Hmm.. I think there's a problem modifying tables, sometimes it may generate
   incorrect SQL. I can't find out what conditions cause this -- but I haven't
   yet tried very hard, I need some sleep first.. UPD: Maybe I was imagining
   this, I haven't seen it recently and no-one's reported it, so..?

 * when modifying a table, the dialog that pops up shows the host and database
   correctly, but when you pop the menus up, the wrong menu item has the splodge
   next to it.. gtk_option_menu_set_history() looks as though it is supposed to
   handle doing this for me, but it isn't happening, so I guess I've done
   something wrong. Suggestions welcome! UPD: Actually, I've disabled those
   menus anyway now, moving tables between databases and hosts is something that
   is not high on my to-do list.