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Søren Løvborg
db: remove redundant unique constraints from primary keys

Primary keys are always unique, both in the SQL standard and in SQLite,
MySQL and PostgreSQL.

Setting unique=True cases SQLAlchemy to explicitly add additional,
redundant UNIQUE indexes to the columns, which is at best needless
metadata overhead, and at worst causes the database engine to waste
time maintaining an extra index that serves no purpose.
.. _index:

#######################
Kallithea Documentation
#######################

**Readme**

.. toctree::
   :maxdepth: 1

   readme

**Installation**

.. toctree::
   :maxdepth: 1

   overview
   installation
   installation_win
   installation_win_old
   installation_iis
   setup
   installation_puppet
   upgrade

**Usage**

.. toctree::
   :maxdepth: 1

   usage/general
   usage/vcs_support
   usage/locking
   usage/statistics

**Administrator's guide**

.. toctree::
   :maxdepth: 1

   usage/email
   usage/performance
   usage/backup
   usage/debugging
   usage/troubleshooting
   usage/customization

**Development**

.. toctree::
   :maxdepth: 1

   contributing
   dev/translation
   changelog

**API**

.. toctree::
   :maxdepth: 1

   api/api


Other topics
************

* :ref:`genindex`
* :ref:`search`


.. _virtualenv: http://pypi.python.org/pypi/virtualenv
.. _python: http://www.python.org/
.. _django: http://www.djangoproject.com/
.. _mercurial: http://mercurial.selenic.com/
.. _bitbucket: http://bitbucket.org/
.. _subversion: http://subversion.tigris.org/
.. _git: http://git-scm.com/
.. _celery: http://celeryproject.org/
.. _Sphinx: http://sphinx.pocoo.org/
.. _vcs: http://pypi.python.org/pypi/vcs