On 2011-06-03, lists-pgsql@useunix.net <lists-pgsql@useunix.net> wrote:
>
> ID TS (HH:MM)
> -------------------
> 0 20:00
> 0 20:05
> 0 20:10
> 1 20:03
> 1 20:09
>
>
> Does my question make sense?
no, why is (1,20:04) excluded, but (0,20:05) included?
both records are 5 minutes from the newest.
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