blob: fbdde2609df51367beb92eed9c4d7e0eba1c4cd5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
// Cannot implicitly shard accessed collections because of following errmsg: A single
// update/delete on a sharded collection must contain an exact match on _id or contain the shard
// key.
// @tags: [assumes_unsharded_collection, requires_getmore]
// SERVER-17011 Tests whether queries which specify sort and batch size can generate results out of
// order due to the ntoreturn hack. The EnsureSortedStage should solve this problem.
(function() {
'use strict';
var coll = db.ensure_sorted;
coll.drop();
assert.commandWorked(coll.createIndex({a: 1, b: 1}));
assert.commandWorked(coll.insert({a: 1, b: 4}));
assert.commandWorked(coll.insert({a: 2, b: 3}));
assert.commandWorked(coll.insert({a: 3, b: 2}));
assert.commandWorked(coll.insert({a: 4, b: 1}));
var cursor = coll.find({a: {$lt: 5}}).sort({b: -1}).batchSize(2);
cursor.next(); // {a: 1, b: 4}.
cursor.next(); // {a: 2, b: 3}.
assert.commandWorked(coll.update({b: 2}, {$set: {b: 5}}));
var result = cursor.next();
// We might either drop the document where "b" is 2 from the result set, or we might include the
// old version of this document (before the update is applied). Either is acceptable, but
// out-of-order results are unacceptable.
assert(result.b === 2 || result.b === 1, "cursor returned: " + printjson(result));
})();
|
