Silvio Brandani <silvio.brandani@tech.sdb.it> writes:
> Il 18/11/2011 15.51, Tom Lane ha scritto:
>> There's nothing here to suggest that this query shouldn't use an index,
>> so the problem is in something you didn't show us. Maybe you have
>> enable_indexscan turned off, or maybe that index isn't really on that
>> table, or something else.
> this is not the case, to be sure I have recreated the index and still
> not work. moreover the copy of the table with the same ttpe of index is
> using it.
Well, the rest of us can't see what you're doing, but I think this is
highly likely to be user error. Have you got more than one table named
aida_references?
regards, tom lane