Description: spelling mistake Origin: vendor Author: gregor herrmann Last-Update: 2014-06-22 Fowarded: no, should go to https://jira.mongodb.org/browse/PERL --- a/lib/MongoDB/Examples.pod +++ b/lib/MongoDB/Examples.pod @@ -342,7 +342,7 @@ The C<$unwind> stage of the aggregation query "peels off" elements of the courses array one-by-one and places them in their own documents. After this phase completes, there is a separate document for each (course, student) pair. The C<$project> stage -then throws out unecessary fields and keeps the ones we are interested in. It also +then throws out unnecessary fields and keeps the ones we are interested in. It also pulls the student ID field out of its subdocument and creates a top-level field with the key C. Last, we group by student ID, using C<$addToSet> in order to add the unique courses for each student to the C array.