13 lines
280 B
JavaScript
13 lines
280 B
JavaScript
// SERVER-6181 Correctly support an expression for _id
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let c = db.c;
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c.drop();
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c.save({a: 2});
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let res = c.aggregate({$project: {_id: '$a'}});
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assert.eq(res.toArray(), [{_id: 2}]);
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res = c.aggregate({$project: {_id: {$add: [1, '$a']}}});
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assert.eq(res.toArray(), [{_id: 3}]);
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