presto-jdbc/src/main/java/io/prestosql/jdbc/PrestoDriver.java/PrestoDriver/connect
class PrestoDriver:    @Override
    public Connection connect(String url, Properties info)
            throws SQLException
    {
        if (!acceptsURL(url)) {
            return null;
        }

        PrestoDriverUri uri = new PrestoDriverUri(url, info);

        OkHttpClient.Builder builder = httpClient.newBuilder();
        uri.setupClient(builder);
        QueryExecutor executor = new QueryExecutor(builder.build());

        return new PrestoConnection(uri, executor);
    }