On 1/7/2013 9:47 AM, Ryan Kelly wrote:
On Mon, Jan 01/07/13, 2013 at 05:42:40PM +0000, Daniele Varrazzo wrote:
On Mon, Jan 7, 2013 at 5:19 PM, Ryan Kelly <rpkell...@gmail.com> wrote:
'1 month'::interval is the same as '30 days'::interval.
No, it's not.
# select '2012-07-31'::date + '1 month'::interval, '2012-07-31'::date
+ '30 days'::interval;
?column? | ?column?
---------------------+---------------------
2012-08-31 00:00:00 | 2012-08-30 00:00:00
-- Daniele
Alright, now I'm thoroughly confused. What magic makes this true:
# select '30 days'::interval = '1 month'::interval;
?column?
----------
t
But not this:
# select '2012-07-31'::timestamp + '1 month'::interval =
'2012-07-31'::timestamp + '30 days'::interval;
?column?
----------
f
?
interval type comparison and timestamp type comparison. It's not the
same comparison.
-Ryan Kelly
Tam
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