Don't use error code numbers, use the constant instead.

git-svn-id: http://h2database.googlecode.com/svn/trunk@4904 e6896862-9d19-0410-bfb3-e9fa5d50e656
Avoid casting problems (if the length is >2 GB).

git-svn-id: http://h2database.googlecode.com/svn/trunk@4905 e6896862-9d19-0410-bfb3-e9fa5d50e656
MVTableEngine: 2-phase commit

git-svn-id: http://h2database.googlecode.com/svn/trunk@4906 e6896862-9d19-0410-bfb3-e9fa5d50e656
Documentation.

git-svn-id: http://h2database.googlecode.com/svn/trunk@4907 e6896862-9d19-0410-bfb3-e9fa5d50e656
The expression trunc(number) threw a NullPointerException.

git-svn-id: http://h2database.googlecode.com/svn/trunk@4908 e6896862-9d19-0410-bfb3-e9fa5d50e656