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Amazon Redshift
Database Developer Guide (API Version 2012-12-01)

DATE_CMP_TIMESTAMP Function

Compares a date to a time stamp and returns 0 if the values are identical, 1 if date is greater alphabetically and -1 if timestamp is greater.

Syntax

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DATE_CMP_TIMESTAMP(date, timestamp)

Arguments

date

A date column or an expression that implicitly converts to a date.

timestamp

A timestamp column or an expression that implicitly converts to a time stamp.

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.

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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)