Обсуждение: using raise info to display array element
I am trying to print values of an array one by one, but it doesn't work.
For example, if i want to print entire array at once, it does work:
CREATE OR REPLACE FUNCTION "public"."test_func" () RETURNS integer AS
$body$
declare
i int;
v_arr integer[] = '{0, 1}';
begin
v_arr[1] := 5;
v_arr[2] := 7;
raise info 'entire array: %', v_arr;
return 0;
end
$body$
LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
But then if I try this:
CREATE OR REPLACE FUNCTION "public"."test_func_new" () RETURNS integer AS
$body$
declare
i int;
v_arr integer[] = '{0, 1}';
begin
v_arr[1] := 5;
v_arr[2] := 7;
raise info '1st element: %', v_arr[1];
return 0;
end
$body$
LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
.. and it doesn't compile.
Can someone help me? Thanks!
--
Regards,
Kiryl Mauryshchau
For example, if i want to print entire array at once, it does work:
CREATE OR REPLACE FUNCTION "public"."test_func" () RETURNS integer AS
$body$
declare
i int;
v_arr integer[] = '{0, 1}';
begin
v_arr[1] := 5;
v_arr[2] := 7;
raise info 'entire array: %', v_arr;
return 0;
end
$body$
LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
But then if I try this:
CREATE OR REPLACE FUNCTION "public"."test_func_new" () RETURNS integer AS
$body$
declare
i int;
v_arr integer[] = '{0, 1}';
begin
v_arr[1] := 5;
v_arr[2] := 7;
raise info '1st element: %', v_arr[1];
return 0;
end
$body$
LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
.. and it doesn't compile.
Can someone help me? Thanks!
--
Regards,
Kiryl Mauryshchau
Hello
It working on my 9.1.
postgres=# select "public"."test_func_new" ();
INFO: 1st element: 5
test_func_new
───────────────
0
(1 row)
can you send more info about your environment?
Regards
Pavel Stehule
2011/8/5 Kiryl Mauryshchau <kirylm@gmail.com>:
> I am trying to print values of an array one by one, but it doesn't work.
>
> For example, if i want to print entire array at once, it does work:
>
> CREATE OR REPLACE FUNCTION "public"."test_func" () RETURNS integer AS
> $body$
> declare
> i int;
> v_arr integer[] = '{0, 1}';
> begin
>
> v_arr[1] := 5;
> v_arr[2] := 7;
>
> raise info 'entire array: %', v_arr;
>
> return 0;
>
> end
> $body$
> LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
>
> But then if I try this:
>
> CREATE OR REPLACE FUNCTION "public"."test_func_new" () RETURNS integer AS
> $body$
> declare
> i int;
> v_arr integer[] = '{0, 1}';
> begin
>
> v_arr[1] := 5;
> v_arr[2] := 7;
>
> raise info '1st element: %', v_arr[1];
>
> return 0;
>
> end
> $body$
> LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
>
> .. and it doesn't compile.
>
> Can someone help me? Thanks!
>
> --
> Regards,
> Kiryl Mauryshchau
>