Richard Broersma Jr <rabroersma(at)yahoo(dot)com> writes:
>> In my application second and fourth parameters can be NULL which means
>> forever.
>> It this best solution ?
>> How many times this is slower than expression in where clause?
>
> I am not sure if this would work for you, but instead of using NULL to
> represent infinity, why not use 'infinity' to represent infinity?
If he casts all his dates to timestamps then this might be a good option.
--
Jorge Godoy <jgodoy(at)gmail(dot)com>