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  1. Core Server
  2. SERVER-12280

allow $out to append to/merge with existing collection instead of replacing it

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    Details

    • Backwards Compatibility:
      Fully Compatible
    • Sprint:
      Query 2018-08-13
    • Case:

      Description

      Currently specifying $out with existing collection name will replace that collection - there are cases where we might want to append to it or merge with it.

      This is a request for such an option.

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          depends on

          Task - A task that needs to be done. SERVER-35896 Support "replaceDocuments" mode in $out

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

          Task - A task that needs to be done. SERVER-35897 Support dropTarget false in $out

          • Major - P3 - Major loss of function.
          • Closed
          is depended on by

          New Feature - A new feature of the product, which has yet to be developed. SERVER-18027 Support aggregation $out to sharded collection

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

          New Feature - A new feature of the product, which has yet to be developed. SERVER-544 Merge/overwrite collections function

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. SERVER-6025 Similar mysql syntax "INSERT ... SELECT ..." for sharded collection.

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-29119 Aggregation: Allow $out the ability to merge the output with the existing data

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-25886 allow upsert option via aggregation $out

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-30320 Feature Request: Merge

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-12342 Add dropTarget option $out operator

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

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                Created:
                Updated:
                Resolved: