Improve SQL request doc

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Chocobozzz 2020-01-28 11:09:40 +01:00
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* `cd /var/www/peertube/peertube-latest && sudo -u peertube NODE_CONFIG_DIR=/var/www/peertube/config NODE_ENV=production node dist/scripts/migrations/peertube-2.1.js`
* **/!\ VERY IMPORTANT /!\\** In the next PeerTube release (v2.2.0), we'll add a unique index on actors usernames to fix some federation bugs.
Please check now if you have conflicts using:
* Go inside your database using `psql` and run `select "preferredUsername" from actor where "serverId" is null group by "preferredUsername" having count(*) > 1`
* Go inside your database using `sudo -u postgres psql peertube_prod` and run `select "preferredUsername" from actor where "serverId" is null group by "preferredUsername" having count(*) > 1;`
* If you have some results, it seems you have duplicate channels/accounts.
For every entry, you'll have to change the preferredUsername of the entry you want (so they are unique).
The updated actors could have some federations issues