UPDATE ......Confluence has now been updated to version 9.2.6. Please see following page for details and feedback about changes:
Updates
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Locally create a new database and import the legacy data in it :(note that you have to run this import as compendium user)
$ psql -h localhost -U compendium postgres
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(You might want to remove all the GRANT calls from the .sql file first!)
Another thing to note is that you have to run this as compendium user.
Now import the legacy database to the new compendium:
$ rake legacy:answers_2010