I'd really appreciate it if a few people would test patch this out and
It changes the SQL generated by update_all so that passing :limit
or :order options will work with non-MySQL adapters. The SQL
currently generated creates SQL Exceptions for non-MySQL adapters.
Added tests pass for MySQL, PostgreSQL, and Sqlite3; I'm working on
tests to run (period) for other adapters, so testing those would be
Verification, comments, and +1s would be appreciated!