complex query using postgresql

Hi everybody

I have de following table where i can perform two different queries:

select * from precalc where idr(p1, p4, p6, p7, p9, 'HLA-DR7')>2; where idr
is a function used to create indicies

and

select * from precalc where p1='S';

Now i would like to perform a query as :

select * from precalc where idr(p1, p4, p6, p7, p9, 'HLA-DR7')>2 and
p1='S'...;

but i don't know how

any body can help me?

thanks

Column | Type | Modifiers
--------+--------------+------------------------------------------------------
id | integer | not null default
nextval('precalc_id_seq'::regclass)
p1 | character(1) |
p4 | character(1) |
p6 | character(1) |
p7 | character(1) |
p9 | character(1) |
Indexes:
"h2iab" btree (idr(p1, p4, p6, p7, p9, 'H-2*IAb'::character varying))
"h2iad" btree (idr(p1, p4, p6, p7, p9, 'H-2*IAd'::character varying))
"h2iak" btree (idr(p1, p4, p6, p7, p9, 'H-2*IAk'::character varying))
"h2ied" btree (idr(p1, p4, p6, p7, p9, 'H-2*IEd'::character varying))
"hladqa10501" btree (idr(p1, p4, p6, p7, p9, 'HLA-DQA1*0501'::character
varying))
"hladqb10201" btree (idr(p1, p4, p6, p7, p9, 'HLA-DQB1*0201'::character
varying))
"hladr" btree (idr(p1, p4, p6, p7, p9, 'HLA-DR'::character varying))
"hladr1" btree (idr(p1, p4, p6, p7, p9, 'HLA-DR1'::character varying))
"hladr13" btree (idr(p1, p4, p6, p7, p9, 'HLA-DR13'::character varying))
"hladr3" btree (idr(p1, p4, p6, p7, p9, 'HLA-DR3'::character varying))
"hladr7" btree (idr(p1, p4, p6, p7, p9, 'HLA-DR7'::character varying))
"hladrb10101" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0101'::character
varying))
"hladrb10102" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0102'::character
varying))
"hladrb10301" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0301'::character
varying))
"hladrb10302" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0302'::character
varying))
"hladrb10401" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0401'::character
varying))
"hladrb10402" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0402'::character
varying))
"hladrb10701" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0701'::character
varying))
"hladrb10802" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0802'::character
varying))
"hladrb10901" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*0901'::character
varying))
"hladrb11101" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*1101'::character
varying))
"hladrb11102" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*1102'::character
varying))
"hladrb11103" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*1103'::character
varying))
"hladrb11104" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*1104'::character
varying))
"hladrb11301" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*1301'::character
varying))
"hladrb11302" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*1302'::character
varying))
"hladrb11501" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB1*1501'::character
varying))
"hladrb40101" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB4*0101'::character
varying))
"hladrb50101" btree (idr(p1, p4, p6, p7, p9, 'HLA-DRB5*0101'::character
varying))
"iid" btree (id)
"ip1" btree (p1)
"ip4" btree (p4)
"ip6" btree (p6)
"ip7" btree (p7)
"ip9" btree (p9)

--
Pau Marc Muñoz Torres

Laboratori de Biologia Computacional
Institut de Biotecnologia i Biomedicina Vicent Villar
Universitat Autonoma de Barcelona
E-08193 Bellaterra (Barcelona)

telèfon: 93 5812807
Email : paumarc(dot)munoz(at)bioinf(dot)uab(dot)cat