mirror of https://github.com/mongodb/mongo
48 lines
1.5 KiB
JavaScript
48 lines
1.5 KiB
JavaScript
// Test that duplicate query results are not returned.
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//
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// @tags: [requires_fastcount]
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(function() {
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"use strict";
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const coll = db.jstests_find_dedup;
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function checkDedup(query, idArray) {
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const resultsArr = coll.find(query).sort({_id: 1}).toArray();
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assert.eq(resultsArr.length, idArray.length, "same number of results");
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for (let i = 0; i < idArray.length; i++) {
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assert(("_id" in resultsArr[i]), "result doc missing _id");
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assert.eq(idArray[i], resultsArr[i]._id, "_id mismatch for doc " + i);
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}
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}
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// Deduping $or
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coll.drop();
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coll.ensureIndex({a: 1, b: 1});
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assert.commandWorked(coll.insert({_id: 1, a: 1, b: 1}));
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assert.commandWorked(coll.insert({_id: 2, a: 1, b: 1}));
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assert.commandWorked(coll.insert({_id: 3, a: 2, b: 2}));
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assert.commandWorked(coll.insert({_id: 4, a: 3, b: 3}));
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assert.commandWorked(coll.insert({_id: 5, a: 3, b: 3}));
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checkDedup({
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$or: [
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{a: {$gte: 0, $lte: 2}, b: {$gte: 0, $lte: 2}},
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{a: {$gte: 1, $lte: 3}, b: {$gte: 1, $lte: 3}},
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{a: {$gte: 1, $lte: 4}, b: {$gte: 1, $lte: 4}}
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]
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},
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[1, 2, 3, 4, 5]);
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// Deduping multikey
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 1, a: [1, 2, 3], b: [4, 5, 6]}));
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assert.commandWorked(coll.insert({_id: 2, a: [1, 2, 3], b: [4, 5, 6]}));
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assert.eq(2, coll.count());
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checkDedup({$or: [{a: {$in: [1, 2]}}, {b: {$in: [4, 5]}}]}, [1, 2]);
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assert.commandWorked(coll.createIndex({a: 1}));
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checkDedup({$or: [{a: {$in: [1, 2]}}, {b: {$in: [4, 5]}}]}, [1, 2]);
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}());
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