46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
// @tags: [
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// # The test runs commands that are not allowed with security token: mapReduce.
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// not_allowed_with_signed_security_token,
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// does_not_support_stepdowns,
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// requires_fastcount,
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// requires_getmore,
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// requires_non_retryable_writes,
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// # This test has statements that do not support non-local read concern.
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// does_not_support_causal_consistency,
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// # Uses mapReduce command.
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// requires_scripting,
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// ]
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import {resultsEq} from "jstests/aggregation/extras/utils.js";
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const coll = db.map_reduce_subplanning;
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coll.drop();
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db.getCollection("mrOutput").drop();
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coll.createIndex({a: 1, c: 1});
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coll.createIndex({b: 1, c: 1});
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// Use descending indexes to avoid index deduplication.
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coll.createIndex({a: -1});
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coll.createIndex({b: -1});
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assert.commandWorked(coll.insert({a: 2}));
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assert.commandWorked(coll.insert({b: 3}));
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assert.commandWorked(coll.insert({b: 3}));
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assert.commandWorked(coll.insert({a: 2, b: 3}));
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assert.commandWorked(coll.mapReduce(
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function() {
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if (!this.hasOwnProperty('a')) {
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emit('a', 0);
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} else {
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emit('a', this.a);
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}
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},
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function(key, vals) {
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return vals.reduce((a, b) => a + b, 0);
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},
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{out: {merge: "mrOutput"}, query: {$or: [{a: 2}, {b: 3}]}}));
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assert(resultsEq([{"_id": "a", "value": 4}], db.getCollection("mrOutput").find().toArray()),
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db.getCollection("mrOutput").find().toArray());
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