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  1. Core Server
  2. SERVER-15612

$in might cover "not exists" with a special value

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Works as Designed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Querying
    • Labels:
      None

      Description

      Example Data:

      {field1: 'String1', field2: 'String2'},
      		 
      {field1: 'String3', field2: 'String4'},
      		 
      {field1: 'String5'}

      Example Query:

      db.collection.find({
      		 
        field2: {
      		 
          $in: ['String2', {$exists: false}]
      		 
        }
      		 
      })

      Example Resultset:

      {field1: 'String1', field2: 'String2'},
      		 
      {field1: 'String5'}

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                Updated:
                Resolved: