At 12:28 PM 11/23/00 +0100, Zeugswetter Andreas SB wrote:
>
>> Reason: I want to know if any of these features are scheduled.
>>
>> 1. Calculated fields in table definitions . eg.
>>
>> Create table test (
>> A Integer,
>> B integer,
>> the_sum As (A+B),
>> );
>
>This is currently easily done with a procedure that takes a tabletype
parameter
>with the name the_sum returning the sum of a + b.
>
> Create table test (
> A Integer,
> B integer
> );
>
>create function the_sum (test) returns integer as
>'
> begin;
> return ($1.a + $1.b);
> end;
>' language 'plpgsql';
>
>A select * won't return the_sum
create view test2 select A, B, A+B as the_sum from test;
will, though.
See, lots of ways to do it!
- Don Baccus, Portland OR <dhogaza@pacifier.com> Nature photos, on-line guides, Pacific Northwest Rare Bird Alert
Serviceand other goodies at http://donb.photo.net.
