class PrestoDatabaseMetaData implements DatabaseMetaData {

    @Override
    public ResultSet getSchemas()
            throws SQLException
    {
        return select("" +
                "SELECT TABLE_SCHEM, TABLE_CATALOG\n" +
                "FROM system.jdbc.schemas\n" +
                "ORDER BY TABLE_CATALOG, TABLE_SCHEM");
    }

      PrestoDatabaseMetaData(PrestoConnection connection);

}