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Changes to the ``BaseUser`` table - added a ``superuser``, and ``last_login``
column. These are required for upgrades to Piccolo Admin.
If you're using migrations, then running ``piccolo migrations forwards all``
should add these new columns for you.
If not using migrations, the ``BaseUser`` table can be upgraded using the
following DDL statements:
.. code-block:: sql
ALTER TABLE piccolo_user ADD COLUMN "superuser" BOOLEAN NOT NULL DEFAULT false
ALTER TABLE piccolo_user ADD COLUMN "last_login" TIMESTAMP DEFAULT null
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