Hi all,
I would like to know why does calling a function with select * from
function doesn't work when its return type is set to void.
I'm asking this because I have a code which uses this syntax to add
support for returning resultsets from functions. This way, regardless
the function returns a resultset or a single value, I could do select *
from function and it works very well.
The problem appears when the function has its returns type to void.
I get the following error message:
npgsql_tests=> select * from funcF();
ERROR: function funcf() in FROM has unsupported return type
ERROR: function funcf() in FROM has unsupported return type
where funcF is defined as:
npgsql_tests=> create function funcF() returns void as 'delete from
tablea where field_serial > 5' language 'sql';
CREATE FUNCTION
But it does work if I call it as:
select funcF();
I'd like to know if would be possible to change this behaviour to return
an empty result set with a null value. This way, there would be
consistency in calling all functions regardless of its return type with
select * from function.
Thanks in advance.
--
Regards,
Francisco Figueiredo Jr.
------
"My grandfather once told me that there are two
kinds of people: those
who work and those who take the credit. He told me
to try to be in the
first group; there was less competition there."
- Indira Gandhi
