Files
mongo/jstests/aggregation/bugs/server6181.js
Mathias Stearn 061a086641 SERVER-10165 aggregate() shell helper now returns a cursor
The actual change is in src/mongo/shell/collection.js with the remaining changes
to adjust tests to the new api.

The "ideal" arguments are now an array of pipeline ops and an optional object
with extra top-level options for the command (such as {explain: true}. For
backwards compatibility, we still support the varargs style where each argument
is a pipeline stage, but there is no way to specify extra parameters in this
mode.
2013-10-08 17:35:02 -04:00

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JavaScript

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