From: | "Pau Marc Munoz Torres" <paumarc(dot)munoz(at)bioinf(dot)uab(dot)cat> |
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To: | "PgSQL General ML" <pgsql-general(at)postgresql(dot)org> |
Subject: | indexing tables using my owns functions |
Date: | 2007-11-26 15:54:10 |
Message-ID: | 19b5841a0711260754m197bbbackc8915d078e6ae23c@mail.gmail.com |
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Lists: | pgsql-general |
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(dot)munoz(at)bioinf(dot)uab(dot)cat
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