my %by_fields;

#while (my $row = $sth->fetchrow_hashref()) {
foreach my $row (@ar) {
   foreach my $field (keys %$row) {
      my $value = $row->{$field};
      push(@{$by_fields{$field}}, $value);
   }
}

[download]

In reply to Re: Converting an array of hashrefs into a hashref of arrays by ikegami
in thread Converting an array of hashrefs into a hashref of arrays by santonegro

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