String cased = allowedConfiguration(variable);
if (cased != null)
variable = cased;
String value = server.getSessionSetting(variable);
if (value == null)
throw new UnsupportedConfigurationException (variable);
PostgresType columnType = PostgresEmulatedMetaDataStatement.getColumnTypes(context.getTypesTranslator()).get(SHOW_PG_TYPE);
PostgresMessenger messenger = server.getMessenger();
messenger.beginMessage(PostgresMessages.DATA_ROW_TYPE.code());
messenger.writeShort(1); // single column
PostgresEmulatedMetaDataStatement.writeColumn(context, server, messenger,