> 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 + $1.b);
end;
' language 'plpgsql';
A select * won't return the_sum, but a
select t.a, t.b, t.the_sum from test t;
will do what you want.
Unfortunately it only works if you qualify the column the_sum with a tablename or
alias.
(But I heard you mention the Micro$oft word, and they tend to always use aliases
anyway)
Maybe we could even extend the column search in the unqualified case ?
Andreas
