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  1. Core Server
  2. SERVER-3107

For JS, add a findRO() that returns a read-only object, which can be much faster for certain cases

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Details

    • New Feature
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 1.9.1
    • JavaScript
    • None

    Description

      if doing a find/read or find/insert in JS code, the JS object is considered writable.
      This makes it slower for read access, and also on insert() whole object is translated back an forth to JS.
      For example:
      db.col.find.foreach(function(d)

      {db.col2.insert(d)}

      )
      will convert entire object from bson to JS then JS to bson.
      Instead if an obj is explicitly marked as RO, we can reuse the exact same BSON.

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          related to

          Task - A task that needs to be done. SERVER-3629 ensure that find readonly is implemented (SERVER-3107)

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

          Question - SERVER-3631 modifying a non object member of a read only js object fails silently

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

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              antoine Antoine Girbal
              antoine Antoine Girbal
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                Created:
                Updated:
                Resolved: