presto-jdbc/src/main/java/io/prestosql/jdbc/PrestoConnection.java/PrestoConnection/checkHoldability
class PrestoConnection:    private static void checkHoldability(int resultSetHoldability)
            throws SQLFeatureNotSupportedException
    {
        if (resultSetHoldability != ResultSet.HOLD_CURSORS_OVER_COMMIT) {
            throw new SQLFeatureNotSupportedException("Result set holdability must be HOLD_CURSORS_OVER_COMMIT");
        }
    }