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Large Objects

From: Dan Boitnott <dan(at)mcneese(dot)edu>
To: pgsql-general(at)postgresql(dot)org
Subject: Large Objects
Date: 2004-12-27 16:39:48
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-general
I need to do some investigation into the way Postgres handles large 
objects for a major project involving large objects.  My questions are:
    * Can large objects be stored within a field value or must they be 
referenced by OID?
    * Are large objects backed up in the normal way or does special 
action have to be taken?
    * If the objects are restored or migrated will they retain their OID?
    * If not, is there another means of referencing them that would be 
persistent through migrations?
    * Is it practical/desirable to store files MIME-Encoded inside a 
text field?
       * The obvious advantages:
          * definitely portable across migrations and backups
          * based on universal technology
          * easy to code
          * easy to reference and version-control
       * The obvious disadvantages:
          * slow, Slow, SLOW
          * significant increase in per-file storage requirements

Any help would be greatly appreciated.  Hope I'm posting to the right 



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