Re: generate_series from now to infinity... - Mailing list pgsql-hackers

On Sun, May 17, 2009 at 01:38:35PM -0300, Dickson S. Guedes wrote:
> I suggested him to use LIMIT.

interesting. I just tested (on beta1), that while limit works in this
query:
SELECT generate_series(now(), CAST('infinity'::date AS timestamp), interval '1 hour') limit 3;

i.e. it returns 3 rows instantly, 
it doesn't for this query:

SELECT i from generate_series(now(), CAST('infinity'::date AS timestamp), interval '1 hour') as x (i) limit 3;

which (as far as i understand it) should be the same.

why is it not limiting generate_series in the second example? is it
intentional?

Best regards,

depesz

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