Re: Issues with generate_series using integer boundaries

On 1 February 2011 00:41, Thom Brown <thom@linux.com> wrote:
> On 1 February 2011 00:36, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Thom Brown <thom@linux.com> writes:
>>> Actually, those lower bound errors aren't related to generate_series,
>>> but I'd still like to know why -2147483648::int4 is out of range.
>>
>> :: binds tighter than - (and everything else too).  Write
>> (-2147483648)::int4 instead.
>
> D'oh.  You explained this to me before.  This time I'll endeavour to
> remember it.  At least that explains the problem I created for myself
> with lower boundaries.

Okay, so lower boundaries are still affected in the same way as upper
boundaries after all, at least when using a reverse series:

SELECT x FROM generate_series((-2147483644)::int4,
(-2147483648)::int4, -1) AS a(x);

--
Thom Brown
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