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=============================
Database migration operations
=============================
All of these :doc:`operations </ref/migration-operations>` are available from
the ``django.contrib.postgres.operations`` module.
.. currentmodule:: django.contrib.postgres.operations
``CreateExtension``
===================
.. class:: CreateExtension(name)
An ``Operation`` subclass which installs PostgreSQL extensions.
.. attribute:: name
This is a required argument. The name of the extension to be installed.
``HStoreExtension``
===================
.. class:: HStoreExtension()
A subclass of :class:`~django.contrib.postgres.operations.CreateExtension`
which will install the ``hstore`` extension and also immediately set up the
connection to interpret hstore data.
``TrigramExtension``
====================
.. class:: TrigramExtension()
.. versionadded:: 1.10
A subclass of :class:`~django.contrib.postgres.operations.CreateExtension`
that installs the ``pg_trgm`` extension.
``UnaccentExtension``
=====================
.. class:: UnaccentExtension()
A subclass of :class:`~django.contrib.postgres.operations.CreateExtension`
which will install the ``unaccent`` extension.
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