Hi Edward,
"LIMIT" is a keyword, which is where you are getting your errors. Did you try a different variable name?
Best,
Jonathan
On Nov 3, 2011, at 1:29 PM, Edward W. Rouse wrote:
> I am writing a procedure and am having a little difficulty with an interval.
> In the DECLARE section I have:
>
> expire interval := '30 days'::interval;
>
> which seems to work fine. In the BEGIN block I need to pull out the number
> of days from a table and update the expire interval to that. But I can't
> quite seem to get the replacement correct.
>
> First I use "SELECT value into limit from" to get the new limit value. The
> value is text, but I have also tried with SELECT (value::integer) into limit
> from" with the same result. The error occurs here:
>
> expire := '% days'::interval, limit;
>
> Now I have tried several different ways to get a new interval, such as '' ||
> limit || days''::interval; and other various differently quoted variations,
> but haven't found the one that works yet. I am still trying various
> combinations, but thought that someone on the list has probably done this
> already. I may, in fact, be doing it entirely wrong. So if someone knows the
> correct/better/easier way to create a dynamic interval I'd appreciate a
> clue.
>
> Thanks.
>
>
> Edward W. Rouse
>
>
>
>
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