class ActiveRecord::ConnectionAdapters::SchemaCache

def encode_with(coder) # :nodoc:
  coder["columns"]          = @columns.sort.to_h
  coder["primary_keys"]     = @primary_keys.sort.to_h
  coder["data_sources"]     = @data_sources.sort.to_h
  coder["indexes"]          = @indexes.sort.to_h
  coder["version"]          = @version
end