rychlost PostgreSQL

[David Rohlicek]

Zdravim,
nevim jestli nedelam neco spatne, ale jakmile si povesim na tabulku tyto
pravidla:

create rule myrule1 as on insert to my_tab do notify tickme;
create rule myrule2 as on update to my_tab do notify tickme;
create rule myrule3 as on delete to my_tab do notify tickme;

tak se strasne prodlouzi doba vykonani SQL dotazu (napr. update). Bez
pravidel
mi to trva cca:
    real    0m0.328s
    user    0m0.001s
    sys     0m0.007s

ale po aplikovani techto pravidel:
    real    0m2.568s
    user    0m0.001s
    sys     0m0.007s

je toto dobre chovani, nebo delam neco spatne? To ty 'notify' trvaji tak
dlouho?
(Nejsem PostgreSQL guru :-( )

Diky za info, Dave