fetchrow_hashref () is slower than using bind_columns (), with which you can achieve the same:
my %rec;
my $sth = $dbh->prepare ("select * from foo");
$sth->execute;
$sth->bind_columns (\@rec{@{$sth->{NAME_lc}}});
while ($sth->fetch) {
print "foo.c_foo = $rec{c_foo}\n";
}
Some proof with a table with 8 fields and and 62684 records:
cmpthese (5, {
hashref => sub {
my $sth = $dbh->prepare ("select * from ll_go");
$sth->execute;
1 while my $h = $sth->fetchrow_hashref;
},
bindcol => sub {
my %rec;
my $sth = $dbh->prepare ("select * from ll_go");
$sth->execute;
$sth->bind_columns (\@rec{@{$sth->{NAME_lc}}});
1 while $sth->fetch;
},
})
=>
perl bench.pl
Rate hashref bindcol
hashref 1.31/s -- -76%
bindcol 5.49/s 320% --
Enjoy, Have FUN! H.Merijn
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