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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_TIMESTAMP function

DATE_CMP_TIMESTAMP compares a date to a timestamp and returns 0 if the values are identical, 1 if date is greater chronologically and -1 if timestamp is greater.

Syntax

DATE_CMP_TIMESTAMP(date, timestamp)

Arguments

Return type

INTEGER

Examples

The following example compares the date 2008-06-18 to LISTTIME. The values of the column LISTTIME are timestamps. Listings made before this date return 1; listings made after this date return -1.

select listid, '2008-06-18', listtime,
date_cmp_timestamp('2008-06-18', listtime)
from listing
order by 1, 2, 3, 4
limit 10;

 listid |  ?column?  |      listtime       | date_cmp_timestamp
--------+------------+---------------------+--------------------
      1 | 2008-06-18 | 2008-01-24 06:43:29 |                  1
      2 | 2008-06-18 | 2008-03-05 12:25:29 |                  1
      3 | 2008-06-18 | 2008-11-01 07:35:33 |                 -1
      4 | 2008-06-18 | 2008-05-24 01:18:37 |                  1
      5 | 2008-06-18 | 2008-05-17 02:29:11 |                  1
      6 | 2008-06-18 | 2008-08-15 02:08:13 |                 -1
      7 | 2008-06-18 | 2008-11-15 09:38:15 |                 -1
      8 | 2008-06-18 | 2008-11-09 05:07:30 |                 -1
      9 | 2008-06-18 | 2008-09-09 08:03:36 |                 -1
     10 | 2008-06-18 | 2008-06-17 09:44:54 |                  1
(10 rows)