MongoDB find 'in' returns empty result set

[Kai Janson]

Hi group,

Has anyone seen this?  I am using MongoDB for a project and when I am trying to query for a list of items using the

boss_db:find(playlist, [{id, 'in', ["", "", ...]   }])

syntax, I get nothing. Ever.  Not with one or more elements in the list.

Example:

boss_db:find(playlist, [{id, 'in', ["playlist-4fb5dfa4cfddce21ff000175"]}]).

[]

But this works:

(pr@mymachine)11> boss_db:find("playlist-4fb5dfa4cfddce21ff000175").                                                              

{playlist,"playlist-4fb5dfa4cfddce21ff000175",

          "member-4fb3349dcfddced73d000007",

          "display-4fb5deb0cfddce21ff000174",

          <<"Kilroy was here">>,<<"Test description">>,

          "playlist_item-4fb46882cfddce7449000001",0}

Thanks!

—Kai