Added new overload DataContext.Refresh(bool ignoreErrors, RefreshMode mode, object entity) added for ignoring errors during refresh.
Improved existing overload to avoid trying to refresh an entity that was added to the context but not submitted to the database.
修補程式
Fixed error with the type and text of the error generated by the DataContext.Refresh(RefreshMode mode, object entity) method, when the passed entity doesn't exist in database.
Fixed bug generating the COALESCE expression (MySQL).