See the "Arbitrary SQL through a custom ResultSource" section in DBIx::Class::Manual::Cookbook

Also, I think (untested, but appears so from grepping distro) that you can do: 
  my $dbh = $myobj->db_Main;
  use Data::Dumper;
  print Dumper $dbh->selectall_arrayref( 'select enum_range(typename);
+', {Slice=>{}}, () );

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In reply to Re: SQL function from DBIC by davidrw
in thread SQL function from DBIC by Sixtease

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