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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

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Duplicate
    • None
    • None
    • Index Maintenance
    • None
    • 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

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              Unassigned Unassigned
              aaron Aaron Staple
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                Created:
                Updated:
                Resolved: