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  1. Core Server
  2. SERVER-5991

$project does not allow creation of a new field with literal value

    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 2.1.1
    • Component/s: Aggregation Framework
    • None
    • ALL

      $project allows insertion of new computed fields, however it doesn't seem to allow insertion of new literal fields.

      {$project : {"newfield":"abc"}}
      gives "errmsg" : "exception: field path references must be prefixed with a '$' (\"abc\""

      It would be nice to not have to hack around it via:
      {$project : {"newfield": {$add: ["abc",""]}}}

      Possibly related to https://jira.mongodb.org/browse/SERVER-5762 and https://jira.mongodb.org/browse/SERVER-5782

            Assignee:
            mathias@mongodb.com Mathias Stearn
            Reporter:
            asya.kamsky@mongodb.com Asya Kamsky
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              Created:
              Updated:
              Resolved: