What is the different between the two types of SQL Server plans in SQL PI?
In SQL Server cartridge versions before 5.9.4.20 there are two types of plans
In SQL PI the term "Actual" means that the plan is collected directly from the SQL Server cache and is not generated artificially. This however in terms of SQL Server is an estimated plan since this is what exists in the plan cache.
Beginning in the 5.9.4.20 and higher releases of the SQL Server cartridge, the SQL PI UI has been changed so the term "Estimated" is now "User Generated" and "Actual" is now "Cache Generated"
This change was made in the UI for new plans collected and for any plans collected in prior cartridge versions (below 5.9.4.20)