P.S.: to understand what the query has to make (and 80% of the view hve
these to make): a lot of time is spend to pivoting a table with a
structure like
identifier, description_of_value, numeric value
that has to be transformed in
identifier, description_1, description_2, ..., description_n
where n is not a fixed number (it changes in function of the type of
calculation that was used to generate the rows in the table).
perhaps this information could help.
thanks everybady