78 lines
2.5 KiB
JavaScript
78 lines
2.5 KiB
JavaScript
// Tests that the correct number of results are returned when $limit is coalesced with $sort.
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(function() {
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"use strict";
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load("jstests/libs/analyze_plan.js");
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const shardingTest = new ShardingTest({shards: 2});
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const db = shardingTest.getDB("project_limit");
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const coll = db.project_limit_pipe_split;
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coll.drop();
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assert.commandWorked(shardingTest.s0.adminCommand({enableSharding: db.getName()}));
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assert.commandWorked(
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shardingTest.s0.adminCommand({shardCollection: coll.getFullName(), key: {_id: "hashed"}}));
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const bulkOp = coll.initializeOrderedBulkOp();
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for (let i = 0; i < 400; ++i) {
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bulkOp.insert({x: i, y: ["a", "b", "c"], z: Math.floor(i / 12)});
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}
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assert.commandWorked(bulkOp.execute());
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let agg = coll.aggregate([
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{$match: {$or: [{z: 9}, {z: 10}]}},
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{$sort: {x: -1}},
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{$project: {x: 1, y: 1, z: 1, _id: 0}},
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{$limit: 6},
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]);
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assert.eq(
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[
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{"x": 131, "y": ["a", "b", "c"], "z": 10},
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{"x": 130, "y": ["a", "b", "c"], "z": 10},
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{"x": 129, "y": ["a", "b", "c"], "z": 10},
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{"x": 128, "y": ["a", "b", "c"], "z": 10},
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{"x": 127, "y": ["a", "b", "c"], "z": 10},
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{"x": 126, "y": ["a", "b", "c"], "z": 10}
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],
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agg.toArray());
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agg = coll.aggregate(
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[{$sort: {x: 1}}, {$redact: "$$KEEP"}, {$project: {x: 1, y: 1, z: 1, _id: 0}}, {$limit: 6}]);
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assert.eq(
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[
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{"x": 0, "y": ["a", "b", "c"], "z": 0},
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{"x": 1, "y": ["a", "b", "c"], "z": 0},
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{"x": 2, "y": ["a", "b", "c"], "z": 0},
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{"x": 3, "y": ["a", "b", "c"], "z": 0},
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{"x": 4, "y": ["a", "b", "c"], "z": 0},
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{"x": 5, "y": ["a", "b", "c"], "z": 0}
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],
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agg.toArray());
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agg = coll.aggregate(
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[{$sort: {x: -1}}, {$skip: 399}, {$project: {x: 1, y: 1, z: 1, _id: 0}}, {$limit: 6}]);
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assert.eq([{"x": 0, "y": ["a", "b", "c"], "z": 0}], agg.toArray());
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agg = coll.aggregate(
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[{$sort: {x: -1}}, {$project: {x: 1, y: 1, z: 1, _id: 0}}, {$skip: 401}, {$limit: 6}]);
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assert.eq(0, agg.itcount());
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agg = coll.aggregate([
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{$sort: {x: -1}},
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{$skip: 4},
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{$project: {x: 1, y: 1, z: 1, _id: 0}},
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{$skip: 3},
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{$limit: 30},
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{$skip: 3},
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{$limit: 6},
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]);
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assert.eq(
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[
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{"x": 389, "y": ["a", "b", "c"], "z": 32},
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{"x": 388, "y": ["a", "b", "c"], "z": 32},
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{"x": 387, "y": ["a", "b", "c"], "z": 32},
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{"x": 386, "y": ["a", "b", "c"], "z": 32},
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{"x": 385, "y": ["a", "b", "c"], "z": 32},
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{"x": 384, "y": ["a", "b", "c"], "z": 32}
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],
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agg.toArray());
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shardingTest.stop();
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})(); |