Christopher Browne wrote:
> teknokrat <teknokrat@yahoo.com> writes:
>
>>Is it a good idea to index timestamp fields? what about date fields in
>>general?
>
>
> If you need to order by a timestamp, then it can be worthwhile.
>
> If that timestamp can be null, and is rarely populated, then you might
> get a _big_ benefit from creating a partial index as with:
>
> create index by_some_date on my_table(some_date) where some_date is
> not null;
I have a lot of queries of the " where timestamp < some date " type and
was wondering if an index would improve performance. None of the
timestamps are null and they are always populated