Stado - General question about parallel queries

Hi, I'm about to try stado to do some tests with parallel queries involving a big table that I hold in a single PostgreSQL Standard Plus server (v9.1.3), the problem is that many clients had built many queries using this table, the question is: Can I use stado to increase performance and avoid the users lose their queries? (some queries are very complex). If not, which will be the best alternative to increase the performance without impact to the clients?

Thanks in advance.
César.

Example of a complex query, How stado will resolve a query like that if the table is partitioned in many nodes?:

select distinct
       case when ticketnbr ~ '^[0-9]{13}-[0-9]+' then
  left(ticketnbr, 13-length(substring(ticketnbr from '^[0-9]{13}-([0-9]+)')))
  || lpad((substring(ticketnbr, length(ticketnbr)-length(substring(ticketnbr from '^[0-9]{13}-([0-9]+)'))*2, length(substring(ticketnbr from '^[0-9]{13}-([0-9]+)')))::integer
  +generate_series(0, substring(ticketnbr from '^[0-9]{13}-([0-9]+)')::integer - substring(ticketnbr, length(ticketnbr)-length(substring(ticketnbr from '^[0-9]{13}-([0-9]+)'))*2, length(substring(ticketnbr from '^[0-9]{13}-([0-9]+)')))::integer))::varchar(30),
  length(substring(ticketnbr from '^[0-9]{13}-([0-9]+)')), '0')
 else
  case when ticketnbr ~ '^[0-9]{13}[0-9]\/[0-9]+-[0-9]+$' then
   substring(ticketnbr, 1, 13-length(substring(ticketnbr from '^[0-9]{13}[0-9]\/[0-9]+-([0-9]+)$')))
   || lpad((substring(ticketnbr from '^[0-9]{13}[0-9]\/([0-9]+)-[0-9]+$')::integer
   +generate_series(0, substring(ticketnbr from '^[0-9]{13}[0-9]\/[0-9]+-([0-9]+)$')::integer-substring(ticketnbr from '^[0-9]{13}[0-9]\/([0-9]+)-[0-9]+$')::integer))::varchar(30),
   length(substring(ticketnbr from '^[0-9]{13}[0-9]\/[0-9]+-([0-9]+)$')), '0')
  else
   left(ticketnbr, 13)
  end
 end as tkts_nmr_ticket,
 first_value(ptt.cdg_tipo) over (partition by rsda.loaddt, rsda.ticketnbr, rsda.pnrlocatorid, rsda.pnrcreatedate order by ptt.orden) as tkts_tipo_emision,
 rsda.pnrlocatorid as rvas_cdg_pnr,
 rsda.pnrcreatedate as rvas_fch_reserva,
 rsda.loaddt as tkts_fch_inicio
from res.ressuspensedocarrangement rsda
inner join aux.prioridad_tipo_tkts ptt
on ptt.cdg_tipo=coalesce(ssrcode, case when resarractioncode='TE' then 'TKNE' else case when resarractioncode='TK' then 'TKNM' else 'TKNM' end end)
left join aux.gpnr_reservas_err gre
on gre.loaddt=rsda.loaddt and gre.pnrlocatorid=rsda.pnrlocatorid and gre.pnrcreatedate=rsda.pnrcreatedate
where
(
 (rsda.loaddt in ('2011-11-03', '2011-11-04') and rsda.pnrcreatedate between '2011-11-02' and '2011-11-03')
 or
 (rsda.loaddt in ('2011-11-05') and rsda.pnrcreatedate>='2011-11-02')
)
and intrapnrsetnbr=0 and ticketnbr is not null
and resarractioncode in ('TA', 'TE', 'TK', 'TM', 'TR', 'TV') and gre.loaddt is null
and rsda.loaddt='2011-11-03'