Recently I tried to wrap some DBI stuff. I found that when calling selectrow_array via goto, the list context is lost:

use strict;
use DBI;
use File::Temp;

my $temp = File::Temp->new;
my $dbh = DBI->connect('dbi:SQLite:dbname='. $temp->filename, '', '');
$dbh->do("create table sample1 (id number )");
$dbh->do("INSERT INTO sample1 (id) VALUES (1)");

sub selectrow_array {
    goto &{ $dbh->can('selectrow_array') };
}

my $statement = "SELECT 'a', 'b', 'c' FROM sample1";
warn $dbh->selectrow_array($statement);
warn selectrow_array($dbh, $statement);

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Output 
abc
a

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As you see from the output, second selectrow_array behaves like being called in scalar context and returns the first value only.

Is there any simple explanation for this behaviour?

In reply to List context lost when goto selectrow_array? by roman

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