// Test fast count mode with single key index unsatisfiable constraints on a multi key index.

t = db.jstests_countb;
t.drop();

t.ensureIndex( {a:1} );
t.save( {a:['a','b']} );
assert.eq( 0, t.find( {a:{$in:['a'],$gt:'b'}} ).count() );
assert.eq( 0, t.find( {$and:[{a:'a'},{a:{$gt:'b'}}]} ).count() );
assert.eq( 1, t.find( {$and:[{a:'a'},{$where:"this.a[1]=='b'"}]} ).count() );
assert.eq( 0, t.find( {$and:[{a:'a'},{$where:"this.a[1]!='b'"}]} ).count() );