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From Apache Wiki <>
Subject [Couchdb Wiki] Update of "DocumentRevisions" by MartinCzura
Date Wed, 05 Nov 2008 01:41:04 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Couchdb Wiki" for change notification.

The following page has been changed by MartinCzura:

The comment on the change is:

+ #redirect Document_revisions
  == Overview ==
  CouchDB does not overwrite updated documents in place, instead it creates a new document
at the end of the database file, with the same `_id` but a new `_rev` identifier. This type
of storage system is space-wasteful so regular ["Compaction"] is needed to reclaim disk space.
Note that the older revisions are not available to ["Views"].

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