22 lines
839 B
JavaScript
22 lines
839 B
JavaScript
/**
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* Tests that extra-large BSON objects (>16MB) can be materialized for the '$match' stage in the
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* middle of the query plan without throwing 'BSONObjectTooLarge' exception.
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*/
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const testDB = db.getSiblingDB("jsTestName");
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assert.commandWorked(testDB.dropDatabase());
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const coll = testDB.coll;
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const largeString = "x".repeat(10 * 1024 * 1024);
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assert.commandWorked(coll.insert({a: 1, b: largeString}));
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// Use '$addFields' to create extra-large documents in the middle of the pipeline followed by
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// '$match'. Use '$_internalInhibitOptimization' to ensure '$match' is not removed by the optimizer.
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const pipeline = [
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{$_internalInhibitOptimization: {}},
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{$addFields: {c: {$concat: ["$b", "-"]}}},
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{$match: {c: {$exists: true}}},
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{$project: {a: 1}},
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];
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assert.doesNotThrow(() => coll.aggregate(pipeline).toArray());
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