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/**
* Tests the behavior of querying or updating a capped collection with and without an _id index.
*
* @tags: [
* requires_capped,
* # capped collections connot be sharded
* assumes_unsharded_collection,
* ]
*/
(function() {
"use strict";
const coll = db.capped9;
coll.drop();
assert.commandWorked(db.createCollection("capped9", {capped: true, size: 1024 * 50}));
assert.commandWorked(coll.insert({_id: 1, x: 2, y: 3}));
assert.eq(1, coll.find({x: 2}).itcount());
assert.eq(1, coll.find({y: 3}).itcount());
// SERVER-3064 proposes making the following queries/updates by _id result in an error.
assert.eq(1, coll.find({_id: 1}).itcount());
assert.commandWorked(coll.update({_id: 1}, {$set: {y: 4}}));
assert.eq(4, coll.findOne().y);
assert.commandWorked(coll.createIndex({_id: 1}));
assert.eq(1, coll.find({_id: 1}).itcount());
assert.commandWorked(coll.update({_id: 1}, {$set: {y: 5}}));
assert.eq(5, coll.findOne().y);
}());
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