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TIMESTAMP_CMP_TIMESTAMPTZ function - Amazon Redshift
SyntaxArgumentsReturn typeExamples

Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the blog post that was published on June 30, 2025.

TIMESTAMP_CMP_TIMESTAMPTZ function

TIMESTAMP_CMP_TIMESTAMPTZ compares the value of a timestamp expression with a timestamp with time zone expression. If the timestamp and timestamp with time zone values are identical, the function returns 0. If the timestamp is greater chronologically, the function returns 1. If the timestamp with time zone is greater, the function returns –1.

Syntax

TIMESTAMP_CMP_TIMESTAMPTZ(timestamp, timestamptz)

Arguments

timestamp

A column of data type TIMESTAMP or an expression that implicitly evaluates to a TIMESTAMP type.

timestamptz

A column of data type TIMESTAMPTZ or an expression that implicitly evaluates to a TIMESTAMPTZ type.

Return type

INTEGER

Examples

The following example compares timestamps to timestamps with time zones and shows the results of the comparison.

SELECT TIMESTAMP_CMP_TIMESTAMPTZ('2008-01-24 06:43:29', '2008-01-24 06:43:29+00'), TIMESTAMP_CMP_TIMESTAMPTZ('2008-01-24 06:43:29', '2008-02-18 02:36:48+00'), TIMESTAMP_CMP_TIMESTAMPTZ('2008-02-18 02:36:48', '2008-01-24 06:43:29+00');

timestamp_cmp_timestamptz  | timestamp_cmp_timestamptz | timestamp_cmp_timestamptz 
---------------------------+---------------------------+--------------------------
             0             |            -1             |             1