47dc95d429
This avoids building the _id (group key) objects while processing inputs to $group. Instead it just remembers the values of the fields, and saves building the object until it is preparing the output.
22 lines
1.1 KiB
JavaScript
22 lines
1.1 KiB
JavaScript
// stop allowing field inclusion in objects in expressions
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load('jstests/aggregation/extras/utils.js');
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c = db.s6529;
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c.drop();
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c.save({a:{b:{c:{d:{e:{f:{g:19}}}}}}});
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// bad project
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assertErrorCode(c, {$project:{foo:{$add:[{b:1}]}}}, 16420);
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// $group shouldnt allow numeric inclusions
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assertErrorCode(c, {$group:{_id: {a:1}}}, 17390);
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// but any amount of nesting in a project should work
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assert.eq(c.aggregate({$project:{_id:0, a:{b:{c:{d:{e:{f:{g:1}}}}}}}}).toArray(), [{a:{b:{c:{d:{e:{f:{g:19}}}}}}}]);
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assert.eq(c.aggregate({$project:{_id:0, a:{b:{c:{d:{e:{f:1}}}}}}}).toArray(), [{a:{b:{c:{d:{e:{f:{g:19}}}}}}}]);
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assert.eq(c.aggregate({$project:{_id:0, a:{b:{c:{d:{e:1}}}}}}).toArray(), [{a:{b:{c:{d:{e:{f:{g:19}}}}}}}]);
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assert.eq(c.aggregate({$project:{_id:0, a:{b:{c:{d:1}}}}}).toArray(), [{a:{b:{c:{d:{e:{f:{g:19}}}}}}}]);
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assert.eq(c.aggregate({$project:{_id:0, a:{b:{c:1}}}}).toArray(), [{a:{b:{c:{d:{e:{f:{g:19}}}}}}}]);
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assert.eq(c.aggregate({$project:{_id:0, a:{b:1}}}).toArray(), [{a:{b:{c:{d:{e:{f:{g:19}}}}}}}]);
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assert.eq(c.aggregate({$project:{_id:0, a:1}}).toArray(), [{a:{b:{c:{d:{e:{f:{g:19}}}}}}}]);
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