55 lines
2.0 KiB
JavaScript
55 lines
2.0 KiB
JavaScript
// Verifies that mongos correctly handles empty documents when all fields are projected out
|
|
import {ShardingTest} from "jstests/libs/shardingtest.js";
|
|
|
|
let st = new ShardingTest({shards: 2});
|
|
|
|
let mongos = st.s0;
|
|
let coll = mongos.getCollection("foo.bar");
|
|
let admin = mongos.getDB("admin");
|
|
|
|
assert.commandWorked(admin.runCommand({enableSharding: coll.getDB().getName(), primaryShard: st.shard0.shardName}));
|
|
assert.commandWorked(admin.runCommand({shardCollection: coll.getFullName(), key: {_id: 1}}));
|
|
|
|
assert.commandWorked(admin.runCommand({split: coll.getFullName(), middle: {_id: 0}}));
|
|
assert.commandWorked(admin.runCommand({moveChunk: coll.getFullName(), find: {_id: 0}, to: st.shard1.shardName}));
|
|
|
|
st.printShardingStatus();
|
|
|
|
// Insert 100 documents, half of which have an extra field
|
|
for (let i = -50; i < 50; i++) {
|
|
let doc = {};
|
|
if (i >= 0) doc.positiveId = true;
|
|
assert.commandWorked(coll.insert(doc));
|
|
}
|
|
|
|
//
|
|
//
|
|
// Ensure projecting out all fields still returns the same number of documents
|
|
assert.eq(100, coll.find({}).itcount());
|
|
assert.eq(100, coll.find({}).sort({positiveId: 1}).itcount());
|
|
assert.eq(100, coll.find({}, {_id: 0, positiveId: 0}).itcount());
|
|
// Can't remove sort key from projection (SERVER-11877) but some documents will still be empty
|
|
assert.eq(100, coll.find({}, {_id: 0}).sort({positiveId: 1}).itcount());
|
|
|
|
//
|
|
//
|
|
// Ensure projecting out all fields still returns the same ordering of documents
|
|
let assertLast50Positive = function (sortedDocs) {
|
|
assert.eq(100, sortedDocs.length);
|
|
let positiveCount = 0;
|
|
for (let i = 0; i < sortedDocs.length; ++i) {
|
|
if (sortedDocs[i].positiveId) {
|
|
positiveCount++;
|
|
} else {
|
|
// Make sure only the last set of documents have "positiveId" set
|
|
assert.eq(positiveCount, 0);
|
|
}
|
|
}
|
|
assert.eq(positiveCount, 50);
|
|
};
|
|
|
|
assertLast50Positive(coll.find({}).sort({positiveId: 1}).toArray());
|
|
assertLast50Positive(coll.find({}, {_id: 0}).sort({positiveId: 1}).toArray());
|
|
|
|
st.stop();
|