如何在Perl中按DBI顺序获取列名和行数据？

Query:  select col1,col2,col3,col4 from some_view;
Output:

    col3,col1,col4
    3,2,1,4
    3,4
    ...

(values and columns are just for illustration)

我知道这是因为我使用哈希,但是如果我只使用一个数组,我还能如何得到列名？所有我想做的是获得这样的任何任意查询：

col1,col4
    1,3,4
    1,4
    ...

(也就是说,我需要的输出是正确的顺序和列名.)

我非常喜欢Perl新手,但我真的以为这将是一个简单的问题. (我以前在Ruby和PHP中完成了这些工作,但是我无法在Perl文档中跟踪我正在寻找的内容.)

这是我现在所做的一个削减版本：

use Data::Dumper;
use DBI;

my $database_path = '~/path/to/db.sqlite3';

$database = DBI->connect(
  "dbi:SQLite:dbname=$database_path","",{
    RaiseError => 1,AutoCommit => 0,}
) or die "Couldn't connect to database: " . DBI->errstr;

my $result = $database->prepare('select col1,col4 from some_view;')
    or die "Couldn't prepare query: " . $database->errstr;

$result->execute
    or die "Couldn't execute query: " . $result->errstr;

########################################################################################### 
# What goes here to print the fields that I requested in the query?
# It can be totally arbitrary or '*' -- "col1,col4" is just for illustration.
# I would expect it to be called something like $result->fields
########################################################################################### 

while (my $row = $result->fetchrow_hashref) {
    my $csv = join(',',values %$row);
    print "$csvn";
}

$result->finish;

$database->disconnect;