How to shrink IRISTEMP db in runtime?

After running an extensive block of daily statistics my IRISTEMP
has expanded dramatically. But FreeSpace shows 97% unused and FREE space. How can I shrink IRISTEMP in runtime without shutdown and manual intervention?

Solution

What do you mean 'without manual intervention' ? You can shrink it with the database tools (Do ^DATABASE, option 13 (compact free space in a database) & option 12 (return free space for a database). But that is a 'manual' intervention. It will only happen automatically when you restart Iris.

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