[Couchdb Wiki] Update of "Views" by Sebastian Probst Eide

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The following page has been changed by Sebastian Probst Eide:
http://wiki.apache.org/couchdb/Views

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  For both kinds of views, the view is defined by a !JavaScript function that maps view keys to values (although it is possible to use other languages than !JavaScript by plugging in third-party view servers).
  
- Note that views are not created when a document is saved, but rather, when it is accessed. As a result, the first access might take some time depending on the size of your data while CouchDB creates the view.
+ Note that by default views are not created and updated when a document is saved, but rather, when it is accessed. As a result, the first access might take some time depending on the size of your data while CouchDB creates the view. If preferable the views can also be updated when a document is saved using an external script that calls the views when updates have been made. An example can be found here: RegeneratingViewsOnUpdate
  
  == Basics ==