how to reset Virtuoso internal caches

[pfps]

In #1110 there was the question

Is there a way to reset virtuoso caches without restarting the server?

But it didn't get an answer there.

I have similar questions:

Does virtuoso cache information to be used in later queries?
Is any of this cache information retained when the server is stopped?
How can the cached information be discarded?

[pkleef]

Yes, virtuoso caches a number of items in memory to speed up processing, such as:

• recently used database pages
• recently used statistics and query plans
• recently used uri prefixes

All of which are runtime only caches, so they automatically cleaned when the virtuoso server is stopped.

Can you give me more info in what sort of caches you are interested in and the reason why you would want to discard such information from a running system?