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// Check sorting of array sub field SERVER-480.
t = db.jstests_sort7;
t.drop();
// Compare indexed and unindexed sort order for an array embedded field.
t.save({a: [{x: 2}]});
t.save({a: [{x: 1}]});
t.save({a: [{x: 3}]});
unindexed = t.find().sort({"a.x": 1}).toArray();
t.ensureIndex({"a.x": 1});
indexed = t.find().sort({"a.x": 1}).hint({"a.x": 1}).toArray();
assert.eq(unindexed, indexed);
// Now check when there are two objects in the array.
t.remove({});
t.save({a: [{x: 2}, {x: 3}]});
t.save({a: [{x: 1}, {x: 4}]});
t.save({a: [{x: 3}, {x: 2}]});
unindexed = t.find().sort({"a.x": 1}).toArray();
t.ensureIndex({"a.x": 1});
indexed = t.find().sort({"a.x": 1}).hint({"a.x": 1}).toArray();
assert.eq(unindexed, indexed);
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