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  1. Core Server
  2. SERVER-6417

duplicate _ids possible when values exceed max index key size

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Indexing
    • Labels:
      None
    • Operating System:
      ALL

      Description

      Observed behavior: _id values larger than the max key size are not indexed and so duplicates are not prevented
      Expected behavior: _id value larger than max key size is not allowed

      Test

      > c.drop()
      		 
      true
      		 
      > var big = new Array( 10000 ).toString()
      		 
      > c.save( { _id:big } )
      		 
      > c.save( { _id:big } )
      		 
      > c.count()
      		 
      2
      		 
      > c.find( { _id:big, dummy:null } ).hint( { $natural:1 } ).itcount()
      		 
      2

        Attachments

          Issue Links

          duplicates

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-3372 Allow indexing fields of arbitrary length

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-5290 fail to insert docs with fields too long to index, and fail to create indexes where doc keys are too big

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

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                Dates

                • Created:
                  Updated:
                  Resolved: