If you haven’t seen the Meatlink note 565424.1 in the news yet, cursor_space_for_time parameter will be deprecated in Oracle 10.2.0.5 and 11.1.0.7.
That’s kind of good news, I hope this will eventually reduce the number of expert DBAs who set this parameter to true whenever they see any kind of shared pool / library cache latch contention.
On the other hand, spin_count was made an undocumented parameter long time ago, but is still heavily abused worldwide so I wouldn’t be surprised if the same happens to future _cursor_space_for_time…
