"Thiago Ventura" <thiventura@gmail.com> writes:
> The problem is when I do some query. NEVER its call the 'beginscan',
> 'gettuple' or another function that is related with a query, that is, in the
> querys my index do not being used.
> What it can be causing this?
Have you created operator classes to show what WHERE-clauses can be used
with the index?
regards, tom lane