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UPGRADE
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0.7.9 -> 0.7.10
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* Update settings.py (BACKEND_*, SERVICE_NAME, \*_EMAIL, \*_TARGET, IM_*)
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* Update ``attributes`` table in mysql (backend)::
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    mysql> update attributes set `key`='ETag' where `key`='hash';
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* Upgrade ``im_user`` table (im app)::
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    ALTER TABLE im_user ADD COLUMN 'password' VARCHAR(255);
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0.7.10 -> 0.8.0
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---------------
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* Upgrade ``public`` table in mysql (backend):
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  * Run: mysqldump pithosdb public > public-table.sql
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  * mysql> drop table public;
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  * Update the codebase and run the server so the new public table is created
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  * From the sql dump above, take the row::
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    INSERT INTO `public` VALUES (...);
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    Rewrite as::
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    INSERT INTO `public`(`path`) VALUES (...);
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    And execute in the database
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* Create settings.local with local setting overrides
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* Install python-django-south
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* Setup south::
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    python manage.py syncdb
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    python manage.py migrate im 0001 --fake
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    python manage.py migrate im
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0.8.0 -> 0.8.1
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--------------
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* Reset ``policy`` table in mysql (backend)::
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    mysql> update policy set `value`='auto' where `key`='versioning';
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0.8.1 -> 0.8.2
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--------------
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* Add the ``X-Forwarded-Protocol`` header directive in the apache configuration, as described in the admin guide
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* Update ``attributes`` table in mysql (backend)::
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    mysql> CREATE TABLE `attributes_new` (
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               `serial` int(11) NOT NULL,
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               `domain` varchar(255) COLLATE utf8_bin NOT NULL,
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               `key` varchar(255) COLLATE utf8_bin NOT NULL,
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               `value` varchar(255) COLLATE utf8_bin DEFAULT NULL,
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               PRIMARY KEY (`serial`,`domain`,`key`),
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               CONSTRAINT FOREIGN KEY (`serial`) REFERENCES `versions` (`serial`) ON DELETE CASCADE ON UPDATE CASCADE
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           ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
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    mysql> insert into attributes_new select `serial`, 'pithos', `key`, `value` from attributes;
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    mysql> drop table attributes;
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    mysql> alter table attributes_new rename to attributes;
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* Update ``versions`` table in mysql (backend)::
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    mysql> create temporary table tmp_uuids as select distinct node, uuid() as `uuid` from versions;
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    mysql> alter table versions add column `uuid` varchar(64) DEFAULT '' NOT NULL after `muser`;
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    mysql> update versions v, tmp_uuids u set v.`uuid` = u.`uuid` where v.`node` = u.`node`;
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    mysql> create index idx_versions_node_uuid on versions(uuid);
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0.8.2 -> 0.9.0
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--------------
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* No upgrade path provided. Please reinstall and reconfigure.