=============================
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.