Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-57854

Changed behavior in SBE when filter is {"":null}

    • Fully Compatible
    • v5.0
    • Query Execution 2021-07-26, QE 2021-08-09, QE 2021-08-23, QE 2021-09-06, QE 2021-09-20

      On the legacy query engine (4.4, 5.0 with internalQueryForceClassicEngine), passing on a filter object with the form

      {"": null}

      evaluates as true and returns all docs.
      However on the new query engine it evaluates as false.

      This was observed by a test case with the Go Driver passing bson.D{{}} as the filter.
      Changing to bson.D{} (which translates to filter: {}) works around the issue.

            Assignee:
            andrii.dobroshynski@mongodb.com Andrii Dobroshynski (Inactive)
            Reporter:
            tomer.yakir@mongodb.com Tomer Yakir
            Votes:
            0 Vote for this issue
            Watchers:
            10 Start watching this issue

              Created:
              Updated:
              Resolved: