Thread: plpgsql Field of Record issue

Is there any other way to accomplish NEW.TG_ARGV[0] in plpgsql, or am
I stuck writing a C function which will allow:
_value := getRecordValue(NEW, TG_ARGV[0]).


create table test(col1 int4);

create or replace function test() returns opaque as '
declare _value int4;
begin RAISE NOTICE ''Args: %'', TG_NARGS; RAISE NOTICE ''Column: %'', TG_ARGV[0];
 -- PARSE ERROR _value := NEW.TG_ARGV[0];
 RAISE NOTICE ''Data: %'', _value;
end;
' language 'plpgsql';

create trigger name BEFORE INSERT ON test FOR EACH ROW EXECUTE PROCEDURE test('col1');
--
Rod Taylor

Your eyes are weary from staring at the CRT. You feel sleepy. Notice
how restful it is to watch the cursor blink. Close your eyes. The
opinions stated above are yours. You cannot imagine why you ever felt
otherwise.

"Rod Taylor" <rbt@zort.ca> writes:
> Is there any other way to accomplish NEW.TG_ARGV[0] in plpgsql,

You could do something involving EXECUTE.
        regards, tom lane

> "Rod Taylor" <rbt@zort.ca> writes:
> > Is there any other way to accomplish NEW.TG_ARGV[0] in plpgsql,
>
> You could do something involving EXECUTE.

Then it tells me:: ERROR: NEW used in non-rule query

Tried a few other things, FOR .. IN EXECUTE .. which gives the same
error as above.

The below query gives me the same error as well -- though I'd be
surprised if it worked anyway:
CREATE TEMP TABLE test AS SELECT * FROM (NEW);

Creating a record and assigning NEW to it gives a parse error.