"Event for temp segment cleanup used for temp lobs"
*Cause: Temp LOB segments used for temporary LOBs are deleted
only on session exit which may lead to large amounts of memory
being held across multiple sessions.
*Action: Setting this event will cause temporary LOB segments
to be freed when there are no active temporary LOBs in
the session. Setting this event will have a significant
performance impact as it can cause temporary lob segments
to be allocated and deleted many times during a session
rather than once per session. Use this event only when
temporary LOB segment memory use is an issue.