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
DATE_CMP_TIMESTAMPTZ function
DATE_CMP_TIMESTAMPTZ compares a date to a timestamp with time zone and returns
0
if the values are identical, 1
if date
is greater chronologically and -1
if timestamptz is
greater.
Syntax
DATE_CMP_TIMESTAMPTZ(date, timestamptz)
Arguments
- date
-
A column of data type
DATE
or an expression that implicitly evaluates to aDATE
type. - timestamptz
-
A column of data type
TIMESTAMPTZ
or an expression that implicitly evaluates to aTIMESTAMPTZ
type.
Return type
INTEGER
Examples
The following example compares the date 2008-06-18
to LISTTIME. Listings
made before this date return 1
; listings made after this date return
-1
.
select listid, '2008-06-18', CAST(listtime AS timestamptz), date_cmp_timestamptz('2008-06-18', CAST(listtime AS timestamptz)) from listing order by 1, 2, 3, 4 limit 10;
listid | ?column? | timestamptz | date_cmp_timestamptz --------+------------+------------------------+---------------------- 1 | 2008-06-18 | 2008-01-24 06:43:29+00 | 1 2 | 2008-06-18 | 2008-03-05 12:25:29+00 | 1 3 | 2008-06-18 | 2008-11-01 07:35:33+00 | -1 4 | 2008-06-18 | 2008-05-24 01:18:37+00 | 1 5 | 2008-06-18 | 2008-05-17 02:29:11+00 | 1 6 | 2008-06-18 | 2008-08-15 02:08:13+00 | -1 7 | 2008-06-18 | 2008-11-15 09:38:15+00 | -1 8 | 2008-06-18 | 2008-11-09 05:07:30+00 | -1 9 | 2008-06-18 | 2008-09-09 08:03:36+00 | -1 10 | 2008-06-18 | 2008-06-17 09:44:54+00 | 1 (10 rows)