--- a/doc/book/en/development/datamodel/metadata.rst	Wed Mar 24 10:23:31 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,54 +0,0 @@
-
-Meta-data
----------
-
-.. index::
-   schema: meta-data;
-   schema: eid; creation_date; modification_data; cwuri
-   schema: created_by; owned_by; is; is_instance;
-
-Each entity type in |cubicweb| has at least the following meta-data attributes and relations:
-
-eid
-  entity's identifier which is unique in an instance. We usually call this identifier `eid` for historical reason.
-
-creation_date
-  Date and time of the creation of the entity.
-
-modification_date
-  Date and time of the latest modification of an entity.
-
-cwuri
-  Reference URL of the entity, which is not expected to change.
-
-created_by
-  Relation to the :ref:`users <CWUser>` who has created the entity
-
-owned_by
-  Relation to :ref:`users <CWUser>` whom the entity belongs; usually the creator but not
-  necessary, and it could have multiple owners notably for permission control
-
-is
-  Relation to the :ref:`entity type <CWEType>` of which type the entity is.
-
-is_instance
-  Relation to the :ref:`entity types <CWEType>` of which type the
-  entity is an instance of.
-
-
-Virtual RQL relations
----------------------
-XXX move this to the RQL chapter.
-
-Those relations may only be used in RQL query and are not actual attributes of your entities...
-
-has_text
-  Relation to use to query the full text index (only for entities having fulltextindexed attributes).
-
-identity
-  Relation to use to tell that a RQL variable should be the same as entity another
-  (but you've to use two different rql variables for querying purpose)
-
-
-
-.. |cubicweb| replace:: *CubicWeb*
\ No newline at end of file