The Execution Plan panel displays information about the query like an estimate for how much data will be returned, the SQL and projections processed for each command, the data sources involved, and so on. You can also execute the query from the Execution Plan panel. The panel opens when you click the Show Execution Plan button in the toolbar of any view editor panel, the procedure editor panel for a SQL Script or Parameterized Query, or from the SQL tab of the OLAP View editor.

Note: The words “Identity Simulated” appear in the upper right corner of the Execution Plan if row-based security is in use and you are using a simulated identity to test that the results are as expected. This is done using the Test Identity tab in the View editor.

See Working with the SQL Execution Plan for information about generating and understanding the execution plan.