document table version column — when is it updated?

[weirdyang]

I am trying to implement a versioning system for workflow types and I noticed there's a version column in the document table.

I tried updating the workflowtype but noticed the version isn't incremented. How is this version incremented? Where and how is this version used in OC? Or is this a yessql feature?

[Piedone]

This is a YesSql feature, yes, see here. You can check out the code of YesSql to see how it's used. I don't know the details, but it does get incremented when updating e.g. site settings.