I'm reading through this post: Demystifying Workflow History (Part 1) and I see that there are two locations that store a workflow's history, the default/hidden NintexWorkflowHistory list in the SharePoint content DB and the Nintext DB (WorkflowProgress table).
My question is this: If I purge the list items from the NintexWorkflowHistory list, does this also affect the ability to review the Nintex Workflow History on the Workflow Details page within SharePoint (via "View Workflow History" link on the item or the site actions menu)? In other words, does the Nintex details page source the Workflow history from the NintexWorkflowHistory list or from the database?