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The "Document_revisions" page has been changed by JanLehnardt:
http://wiki.apache.org/couchdb/Document_revisions?action=diff&rev1=5&rev2=6
Comment:
add ContributorGroup link
+ <<Include(EditTheWiki)>>
+
== 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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