Andrus wrote:
CREATE OR REPLACE FUNCTION f_v_same_day_overlaps(date,
date, date, date, out overlaps bool) as
$_$
SELECT (($3 between $1 and $2) or ($4 between $1 and $2));
$_$ language sql;
Thank you.
In my application second and fourth parameters can be NULL which means
forever.
No it doesn't. NULL means "unknown". You're just using it to represent
"forever".
There is a value "infinity" for timestamps, but unfortunately not for
dates. Otherwise, I'd suggest that you use that instead.
--
Richard Huxton
Archonet Ltd
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