MSSQL's TSqlMethods `add_limit_offset!` is not being used (nor on AR 2.3)
likely broke our SQLServer 2000 limit/offset helper + note on limit.group
support for running/testing with official MSSQL driver - `adapter: sqlserver`
to run tests for now simply: *rake test_mssql DRIVER=SQLJDBC **
avoid unable to choose type for :timestamp from [ datetime, datetime2 ]
... when running with official MS-SQL (SQLJDBC) driver
Fix add_column with arrays
Fix change_column with arrays
Fix array values escaping: backslashes should be escaped too