TIMESTAMP_CMP_TIMESTAMPTZ function - Amazon Redshift
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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.


TIMESTAMP_CMP_TIMESTAMPTZ(timestamp, timestamptz)



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


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

Return type



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