Re: BUG #2093: SUM of timeintervals, no problems in 8.0.3

Björn Sjölenius wrote:

> The result I get;
> nick | time
> ------+----------------
> apa | 1 day 69:00:00
>
>
> Expected result is what 8.0.3 give me;
> nick | time
> ------+----------------
> apa | 3 days 21:00:00

Actually this is expected. 8.1 groups hours and days separately,
because there is no way to know if 1 day means 23, 24 or 25 hours (or
even a fractional number like 24.5) in the presence of a daylight-saving
switch event. So "1 day 69 hours" is actually more correct.

There is a function to convert to the older format:

alvherre=# select justify_hours('1 day 69:00:00');
justify_hours
-----------------
3 days 21:00:00
(1 fila)

--
Alvaro Herrera http://www.CommandPrompt.com/
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