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NUM = 20;
M = 5;
t = db.jstests_arr2;
function test(withIndex) {
t.drop();
// insert a bunch of items to force queries to use the index.
newObject = {_id: 1, a: [{b: {c: 1}}]};
now = (new Date()).getTime() / 1000;
for (created = now - NUM; created <= now; created++) {
newObject['created'] = created;
t.insert(newObject);
newObject['_id']++;
}
// change the last M items.
query = {'created': {'$gte': now - M}};
Z = t.find(query).count();
if (withIndex) {
// t.ensureIndex( { 'a.b.c' : 1, 'created' : -1 } )
// t.ensureIndex( { created : -1 } )
t.ensureIndex({'a.b.c': 1}, {name: "x"});
}
var res = t.update(query, {'$set': {"a.0.b.c": 0}}, false, true);
assert.eq(Z, res.nMatched, "num updated withIndex:" + withIndex);
// now see how many were actually updated.
query['a.b.c'] = 0;
count = t.count(query);
assert.eq(Z, count, "count after withIndex:" + withIndex);
}
test(false);
test(true);
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