Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025.
If you would like to use Python UDFs, create the UDFs prior to that date.
Existing Python UDFs will continue to function as normal. For more information, see the
blog post
TIMESTAMPTZ_CMP_DATE function
TIMESTAMPTZ_CMP_DATE compares the value of a timestamp and a date. If the timestamp and
date values are identical, the function returns 0
. If the timestamp is greater
chronologically, the function returns 1
. If the date is greater, the function
returns –1
.
Syntax
TIMESTAMPTZ_CMP_DATE(timestamptz, date)
Arguments
- timestamptz
-
A column of data type
TIMESTAMPTZ
or an expression that implicitly evaluates to aTIMESTAMPTZ
type. - date
-
A column of data type
DATE
or an expression that implicitly evaluates to aDATE
type.
Return type
INTEGER
Examples
The following example compares LISTTIME as a timestamp with time zone to the date
2008-06-18
. Listings made after this date return 1
;
listings made before this date return -1
.
select listid, CAST(listtime as timestamptz) as tstz, timestamp_cmp_date(tstz, '2008-06-18') from listing order by 1, 2, 3 limit 10;
listid | tstz | timestamptz_cmp_date --------+------------------------+---------------------- 1 | 2008-01-24 06:43:29+00 | -1 2 | 2008-03-05 12:25:29+00 | -1 3 | 2008-11-01 07:35:33+00 | 1 4 | 2008-05-24 01:18:37+00 | -1 5 | 2008-05-17 02:29:11+00 | -1 6 | 2008-08-15 02:08:13+00 | 1 7 | 2008-11-15 09:38:15+00 | 1 8 | 2008-11-09 05:07:30+00 | 1 9 | 2008-09-09 08:03:36+00 | 1 10 | 2008-06-17 09:44:54+00 | -1 (10 rows)