Error on rebuild with bookmarks_polymorphic

Product Support Self-hosting
8
  1. Via your terminal (i assume bash) start mysql console inside the container:
    docker exec -i name_of_your_container mysql

In the mysql console:
use discourse;
DROP TRIGGER bookmarks.bookmarks_polymorphic_data;

Leave console with
exit

After that the update script can should be able to drop the column and things should run smoothly - fingers crossed.