On 7/5/19 1:49 PM, PegoraroF10 wrote:
Sorry, the example I was thinking was this one, which works on Firebird,
using its way of writing, obviously.

create function myproc(id integer) returns I32 language sql as 'select $1';

On postgres ERROR: return type mismatch in function declared to return i32

What I mean is that Firebird sees I32 and integer as the same, Postgres
doesn´t.

Yeah, but if you reverse the casting you did in your first example it works:

create function myproc(id integer) returns I32 language sql as 'select $1::i32';
CREATE FUNCTION

test_(aklaver)> select myproc(5);
 myproc
--------
      5
(1 row)

test_(aklaver)> select pg_typeof(myproc(5));
 pg_typeof
-----------
 i32
(1 row)




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Adrian Klaver
adrian.kla...@aklaver.com


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