Re: BUG #15477: Procedure call with named inout refcursor parameter - "invalid input syntax for type boolean" error

čt 1. 11. 2018 v 7:42 odesílatel PG Bug reporting form <
noreply@postgresql.org> napsal:

> The following bug has been logged on the website:
>
> Bug reference:      15477
> Logged by:          Alexey Stepanov
> Email address:      stepaunov@gmail.com
> PostgreSQL version: 11.0
> Operating system:   RedOS (based on Red Hat Linux) (red-soft.ru)
> Description:
>
> Calling procedure with named inout refcursor parameter leads to "invalid
> input syntax for type boolean" error.
>
> Repro:
> /*
> select version()
> PostgreSQL 11.0 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5
> 20150623
> (Red Hat 4.8.5-28), 64-bit
> */
>
> drop table if exists t1;
> drop procedure if exists p1(integer, refcursor);
>
> create table t1 (key serial, name text);
>
> create or replace procedure p1(v_cnt int, v_ResultSet inout refcursor =
> null)
> as $$
> begin
>   insert into t1 (name) values('name_test');
>   open v_ResultSet for select * from t1;
> end;
> $$
> language plpgsql security definer
> ;
>
>
> -- trying to call with named v_ResultSet parameter
> do $$
> declare
>   v_ResultSet refcursor;
>   v_cnt       integer;
> begin
>   call p1(v_cnt:=v_cnt, v_ResultSet := v_ResultSet);
>   raise notice '%', v_ResultSet;
> end;$$
> ;
>
> result (in pgAdmin3):
> ERROR:  invalid input syntax for type boolean: "<unnamed portal 7>"
> CONTEXT:  PL/pgSQL function inline_code_block line 6 at CALL
> ********** Error **********
>
> ERROR: invalid input syntax for type boolean: "<unnamed portal 7>"
> SQL state: 22P02
> Context: PL/pgSQL function inline_code_block line 6 at CALL
>
>
> -- trying to call with ordinal parameters - success!
> do $$
> declare
>   v_ResultSet refcursor;
>   v_cnt       integer;
> begin
>   call p1(v_cnt, v_ResultSet);
>   raise notice '%', v_ResultSet;
> end;$$
> ;
>
> result - ok
>

It is strange bug. When you use syntax =>, ":=" is obsolete (but still
supported), then all is working

postgres=# do $$
declare
  v_ResultSet refcursor;
  v_cnt       integer;
begin
  call p1(v_cnt=>v_cnt, v_ResultSet => v_ResultSet);
  raise notice '%', v_ResultSet;
end;$$
;
NOTICE:  <unnamed portal 4>
DO

looks so somewhere only new syntax is recognized and supported.

Regards

Pavel