BTW there are a much more short version of this:
CREATE OR REPLACE FUNCTION int_equal(interval, interval) RETURNS boolean
IMMUTABLE STRICT LANGUAGE sql AS
'SELECT $1::text = $2::text';
On Wed, Aug 8, 2012 at 4:51 PM, Albe Laurenz
<laurenz.albe@wien.gv.at> wrote:
Then maybe you should use something like this for equality:
CREATE OR REPLACE FUNCTION int_equal(interval, interval) RETURNS boolean
IMMUTABLE STRICT LANGUAGE sql AS
'SELECT
12 * EXTRACT (YEAR FROM $1) + EXTRACT (MONTH FROM $1)
= 12 * EXTRACT (YEAR FROM $2) + EXTRACT (MONTH FROM $2)
AND EXTRACT (DAY FROM $1) = EXTRACT (DAY FROM $2)
AND 3600000000 * EXTRACT (HOUR FROM $1)
+ 60000000 * EXTRACT (MINUTE FROM $1)
+ EXTRACT (MICROSECONDS FROM $1)
= 3600000000 * EXTRACT (HOUR FROM $2)
+ 60000000 * EXTRACT (MINUTE FROM $2)
+ EXTRACT (MICROSECONDS FROM $2)';