Hi every body
Recently i wrote my own function into postgesql... and it works perfecly!!, now i would like use it to index a table like this guy do at the link (
http://www.faqs.org/docs/ppbook/r24254.htm)
but i get the following error
mhc2db=> create index h2iab on precalc (idr(p1,p4,p6,p7,p9,'H-2*IAb'));
ERROR: functions in index expression must be marked IMMUTABLE
mhc2db=>
in this indexation p1,p4,p6,p7,p9 are variables that depends on the field.
could anyone help me?
--
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.munoz@bioinf.uab.cat