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Hi Aki,

The database schema is updated through so-called update providers. There are multiple of these in various assemblies, in fact you can even create your own if you need updates to run on deployment. Updates are very versatile and can be used to anything from moving/copying files to, relating to this thread, database updates.

When the solution starts up after an upgrade, it will loop through all update providers and run all updates that have not already been registered as completed. In the database, there's a table called Updates which contains the list of installed updates. It shows the update id, the provider it came from and the timestamp for when it was installed.

Regarding the specific column you mention, it's actually installed with the default database layout when installing DynamicWeb through the Setup guide and not an update. If that column is missing from that table, it indicates that the database was not created correctly. It's hard for me to say how that could have happened. Did you copy the database from somewhere or did you start it fresh with the solution? I just checked that it is part of the Swift database release.

- Jeppe