The following bug has been logged on the website:
Bug reference: 13805
Logged by: Jov
Email address: amutu@amutu.com
PostgreSQL version: 9.4.5
Operating system: CentOS 6
Description:
test caseï¼
CREATE OR REPLACE FUNCTION public.test()
RETURNS void
LANGUAGE plpgsql
AS $function$
declare
n int = 4;
rt timestamp[];
rt2 interval;
begin
execute $$select array_agg(g.i) from generate_series(now() - ('$1
month')::interval,now(),'1 month') g(i)$$ into r
t using n;
raise notice 'rt : %',rt;
execute $$select array_agg(g.i) from generate_series(now() - ($1::varchar ||
' month')::interval,now(),'1 month')
g(i)$$ into rt using n;
raise notice 'rt : %',rt;
execute $$select ('$1 month')::interval $$ into rt2 using n;
raise notice 'rt2 : %',rt2;
execute $$select ($1::varchar || ' month')::interval $$ into rt2 using n;
raise notice 'rt2 : %',rt2;
end;
$function$
~
~
No changes
db_001=# select * from test();
NOTICE: rt : {"2015-11-08 11:46:28.500811","2015-12-08
11:46:28.500811"}-----wrong answerï¼should 4 elements
NOTICE: rt : {"2015-08-08 11:46:28.500811","2015-09-08
11:46:28.500811","2015-10-08 11:46:28.500811","2015-11-08
11:46:28.500811","2015-12-08 11:46:28.500811"}
NOTICE: rt2 : 1 mon-----wrongï¼should 4 mons
NOTICE: rt2 : 4 mons
test
------
(1 row)
