[Dbix-class] Fetch resultset without related resultsets?

[dreel at bk.ru]

Hallo all.
What shell I do if to get only the main resultset without the related
results attached by scheme references.

$rs = $scheme->resulrset(MyDb::Table)->search(
{},
{
  select => ['type'],
  group_by => [qw/ type /]
});

and
Table->has_many (Table2,...);
Table->has_many (Table3,...) ;

The Dump of $rs returns all data from Table and Table2, Table3

But my connection to MS SQL Server is too slow and I want to prevent
extra data transfer.

How can I detach  main result set from related?

-- 
 dreel                          mailto:dreel at bk.ru