Re: Using scalar function as set-returning: bug or feature?

On 09.02.2018 11:02, Konstantin Knizhnik wrote:
>
>
> On 09.02.2018 10:47, Sergei Kornilov wrote:
>> Hello
>>
>>> select into b from my_insert('from func atx');
>> You missed select something into b. For example,
>> select ret into b from my_insert('from func atx') as ret;
>>
>> Using scalar function in from is not bug.
>> Silent assigning NULL for variables in "into" not matches same in 
>> "select"... I think better would be raise warning.
>>
>> regards, Sergei
> Thank you.
> Really the problem is caused by empty source list for INTO.
> If I rewrite query as
>
>     select my_insert into b from my_insert('from func atx');
>
> then it works as expected.
> But I wonder if the original statement should be considered as error 
> or at least we should produce warning for such empty projections?
>
>
Attached please find patch reporting error in case of empty attribute 
list for SELECT INTO.

-- 
Konstantin Knizhnik
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company