CPAN::Groonga

->install_method('x_duckdb_read_csv');
            DBD::DuckDB::db->install_method('x_duckdb_read_json');
            DBD::DuckDB::db->install_method('x_duckdb_read_xlsx');

            $methods_are_i

ema, table => $table, dbh => $dbh);

    }

    sub x_duckdb_read_json {

        my ($dbh, $file, $params) = @_;

        # read_json(VARCHAR,
        #     convert_strings_to_integers : BOOLEAN,
   

        $file;
        unshift @placeholders, '?';

        my $sql = sprintf 'SELECT * FROM read_json(%s)', join(', ', @placeholders);

        my $sth = $dbh->prepare($sql) or return;
        $sth->