def self.column(name, sql_type = nil, default = nil, null = true)
ActiveRecord::ConnectionAdapters::Column.new(name.to_s, default, sql_type.to_s, null)
end
def self.column(name, sql_type = nil, default = nil, null = true)
ActiveRecord::ConnectionAdapters::Column.new(name.to_s, default, sql_type.to_s, null)
end