Am Freitag, 21. September 2007 schrieb Eugene M. Hutorny:
> SQL statemet
> SELECT EXTRACT(QUARTER FROM INTERVAL '1 day');
>
> Returns: 1
> Expected: 0
>       Or: ERROR: interval units "quarter" not supported

An alternative behavior would be to return something like

 ceil($argument / (360/4))

or however one would calculate the quarter exactly.

The current behavior makes no sense to me either.

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/

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