I'm using sqlrelay and Rose::DB and it partly works in conjunction with Catalyst and mysql5.0.38 on a debian box. Partly, because any SELECT statements (even complex ones) generated by Rose::DB are executed.

Reading the database works.

Unfortunately I didn't get any INSERT or UPDATE statements to work.

my $product = My::Product->new( name=> 'boo', text=>'foo');
$product->save();
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DBD::SQLRelay::st execute warning: You have an error in your SQL synta
+x; check the manual that corresponds to your MySQL server version for
+ the right syntax to use near  ':1,
  :2,
  'boo',
  'foo',
  ''
)' at line 11 at /usr/local/share/perl/5.8.8/Rose/DB/Object.pm line 11
+10.
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        if($meta->dbi_requires_bind_param($db))
        {
          my $i = 1;

          foreach my $column ($meta->columns)
          {
            my $method = $column->accessor_method_name;
            $sth->bind_param($i++,  $self->$method(), $column->dbi_bin
+d_param_attrs($db));
          }

          $sth->execute;
        }
        else
        {
        # IT'S THIS NEXT LINE PRODUCING THE ERROR
          $sth->execute(map { $self->$_() } $meta->column_accessor_met
+hod_names);
        }
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Humm.. I'm still evaluating this. Unfortunately I'm stuck to mysql as it offeres a very cheap - by meaning of money - clustering solution.

Meanwhile I end up in having a two connects: one directly to mysql and another to the sqlrelay delivering reading performance.

But this isn't really the muslti-master thing I wanted to have ;-(

So I think I have to investigate on and patch this binding mechanism or otherwise have to cope with this limitation