Re: Problem with array subscripts in plpgsql trigger function

On 7/5/06, Erik Jones <erik(at)myemma(dot)com> wrote:
>
> Ok, I have a trigger set up on the following (stripped down) table:
>
> CREATE TABLE members (
> member_id bigint,
> member_status_id smallint,
> member_is_deleted boolean
> );
>
> Here's a shortened version of the trigger function:
>
> CREATE OR REPLACE FUNCTION update_member() RETURNS TRIGGER AS $um$
> DECLARE
> status_deltas integer[];
> BEGIN
> IF(NEW.member_status_id != OLD.member_status_id AND
> NEW.member_is_deleted IS NOT TRUE) THEN
> status_deltas[NEW.member_status_id] := 1;
> status_deltas[OLD.member_status_id] := -1;
> END IF;
> /*and after a couple more such conditional assignments I use the
> values in status_deltas to update another table holding status totals
> here*/
> END;
> $um$ LANGUAGE plpgsql;
>
> on the two lines that access set array values I'm getting the following
> error:
>
> ERROR: invalid array subscripts
>
> What gives?

What values are being used for member_status_id?