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TIMESTAMPTZ_CMP function - Amazon Redshift
SyntaxArgumentsReturn typeExamples
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TIMESTAMPTZ_CMP function

TIMESTAMPTZ_CMP compares the value of two timestamp with time zone values and returns an integer. If the timestamps are identical, the function returns 0. If the first timestamp is greater chronologically, the function returns 1. If the second timestamp is greater, the function returns –1.

Syntax

TIMESTAMPTZ_CMP(timestamptz1, timestamptz2)

Arguments

timestamptz1

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

timestamptz2

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 with time zones and shows the results of the comparison.

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

timestamptz_cmp  | timestamptz_cmp | timestamptz_cmp
-----------------+-----------------+----------------
        0        |       -1        |       1