Details
Major - P3 Description
Script:
(function () {
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'use strict';
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const collName = "fuzzer_coll";
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const aggregationList = [
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{"$lookup":{ "from": collName, "localField": "foo", "foreignField": "bar", "as": "array" }}];
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const documentList = [{ "_id" : 49, "foo": [1, [1]], "bar": 1, }];
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const coll = db[collName];
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coll.drop();
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assert.commandWorked(coll.insert(documentList));
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const indexList = [\{bar: 1}];
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assert.commandWorked(coll.createIndexes(indexList));
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assert.commandWorked(db.adminCommand({setParameter: 1, internalQuerySlotBasedExecutionDisableLookupPushdown: false}));
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const sberes = coll.aggregate(aggregationList).toArray();
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jsTestLog("123123 sbe result " + tojson(sberes));
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assert.commandWorked(db.adminCommand({setParameter: 1, internalQuerySlotBasedExecutionDisableLookupPushdown: true}));
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const classicres = coll.aggregate(aggregationList).toArray();
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jsTestLog("123123 classic result " + tojson(classicres));
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assert.commandWorked(db.adminCommand({setParameter: 1, internalQuerySlotBasedExecutionDisableLookupPushdown: false}));
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assert.eq(sberes, classicres);
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})();
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Output:
[[
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{
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"_id" : 49,
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"foo" : [
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1,
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[
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1
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]
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],
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"bar" : 1,
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"array" : [
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{
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"_id" : 49,
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"foo" : [
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1,
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[
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1
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]
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],
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"bar" : 1
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},
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{
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"_id" : 49,
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"foo" : [
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1,
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[
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1
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]
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],
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"bar" : 1
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}
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]
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}
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]] != [[
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{
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"_id" : 49,
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"foo" : [
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1,
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[
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1
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]
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],
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"bar" : 1,
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"array" : [
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{
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"_id" : 49,
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"foo" : [
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1,
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[
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1
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]
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],
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"bar" : 1
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}
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]
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}
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]]
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