Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-42137

Allow aggregation $merge stage to write to a collection that the query also reads from

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • 4.2.0-rc2
    • 4.3.2
    • Aggregation Framework
    • None
    • Minor Change
    • Query 2019-11-18, Query 2019-12-02

    Description

      Enable functionality to permit $out to merge/append to the aggregation source collection.

      Attachments

        Issue Links

          is documented by

          Task - A task that needs to be done. DOCS-13236 Investigate changes in SERVER-42137: Allow aggregation $merge stage to write to a collection that the query also reads from

          • Major - P3 - Major loss of function.
          • Closed
          is related to

          Task - A task that needs to be done. SERVER-37378 Prevent $out to the same namespace as the aggregation for the new modes

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-38360 Disallow pipelines which read from the same namespace that they write to

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-60788 merge_causes_infinite_loop.js attempts to expose a problem that no longer exists

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              mihai.andrei@mongodb.com Mihai Andrei
              clare.scally@mongodb.com Clare Scally
              Votes:
              1 Vote for this issue
              Watchers:
              8 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: