Count column with name 'count' returns multiple rows. Why?

[Rob Audenaerde <rob.audenaerde@xxxxxxxxx>]

Hi all,

I don't understand why this query:

   select count(base.*) from mytable base;

does return multiple rows.

   select count(1) from mytable base;

returns the proper count.

There is a column with the name 'count'.

Can anyone please explain this behaviour?

Steps to reproduce:

create table s91("count" int);

insert into s91 values (1),(2),(3);

select count(base.*) from s91 base;

 count 

-------

     1

     2

     3

(3 rows)

I think this is either a bug or an undocumented feature?

ps. I posted this question on StackOverflow as well: https://stackoverflow.com/q/45752412/461499