If I am reading the translation of your post correctly, you have identified a memory-leak that occurs while using MVCC on an in-memory database, and you are look for a work-around.
Perhaps one of the least elegant solutions may be to make the database cached (or "on disk") and located in a temporary folder/directory.
That said, Thomas M. should look at it, because it sounds like a bug.
On Tuesday, November 20, 2012 9:18:29 PM UTC+13, sug wrote:
Now, H2DataBase version 1.3.168 is used.
Although MVCC is used in in memory mode, the phenomenon in which the size of a memory continues becoming large has occurred.
When not using MVCC in in-memory mode, the same phenomenon does not occur.
Can't MVCC be used when using in memory mode?
If there is an evasion measure, may I teach and have?