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  1. Documentation
  2. DOCS-4832

Document data type changes when restoring data via MMS

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    • Icon: Improvement Improvement
    • Resolution: Done
    • Icon: Minor - P4 Minor - P4
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    Description

      The subtype of a BinData object can change when the database is backed up and restored using MMS.

      In particular, a source database which contains a BinData object with 'subtype 2' will be converted to a BinData object with 'subtype 0'. While the data is still intact this is a change in format which may not cause some confusion ("why does not restored database not contain the same data as the source database?" - it does at the logical level but not at the physical level)

      Subtype 2 is deprecated as per the 'BSON spec' but we do not document that the backup and restore process will automatically convert the subtype.

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            tony.sansone@mongodb.com Anthony Sansone (Inactive)
            ronan.bohan@mongodb.com Ronan Bohan
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            Dates

              Created:
              Updated:
              Resolved:
              7 years, 43 weeks, 1 day ago