I just started testing our GP 2013R2 > 2015R2 upgrade and found an anomaly in the Upgrade Instructions regarding: Determine disk space for the upgrade process
The supplied query suggested I would need 19GB of space for the tempdb file based on the size of our largest file SOP30300.
In reality I needed 116GB thanks to the following SQL statement being run during the Update Company Tables step:
update SOP30200 set Workflow_Status=WorkflowApprStatCreditLm where WorkflowApprStatCreditLm>0 update SOP30200 set Workflow_Status=WorkflowApprStatusQuote where WorkflowApprStatusQuote>0
Btw, the size of our SOP30200 table is 7.3GB