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t = db.jstests_array_match2;
t.drop();
t.save( {a:[{1:4},5]} );
// When the array index is the last field, both of these match types work.
assert.eq( 1, t.count( {'a.1':4} ) );
assert.eq( 1, t.count( {'a.1':5} ) );
t.remove({});
// When the array index is not the last field, only one of the match types works.
t.save( {a:[{1:{foo:4}},{foo:5}]} );
assert.eq( 1, t.count( {'a.1.foo':4} ) );
assert.eq( 1, t.count( {'a.1.foo':5} ) );
// Same issue with the $exists operator
t.remove({});
t.save( {a:[{1:{foo:4}},{}]} );
assert.eq( 1, t.count( {'a.1':{$exists:true}} ) );
assert.eq( 1, t.count( {'a.1.foo':{$exists:true}} ) );
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