thank you very much for clarifying .....

On 15 December 2013 19:02, Andreas Brandl <m...@3.141592654.de> wrote:

> John,
>
> ----- Ursprüngliche Mail -----
> > On 12/15/2013 4:17 PM, Andreas Brandl wrote:
> > > select current_timestamp, current_timestamp + interval '2' day;
> >
> > that should be interval '2 day'   (note the ' moved), and for  a
> > variable number passed as a parameter, try...
>
> # select current_timestamp + interval '2' day;
> # select current_timestamp + interval '2' minute;
>
> all valid, but seems to only work in SQL (and not plpgsql) context.
>
> Regards,
> Andreas
>
>
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