Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the [ blog post ](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/). 

# TIMESTAMPTZ\$1CMP function
<a name="r_TIMESTAMPTZ_CMP"></a>

TIMESTAMPTZ\$1CMP 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
<a name="r_TIMESTAMPTZ_CMP-synopsis"></a>

```
TIMESTAMPTZ_CMP(timestamptz1, timestamptz2)
```

## Arguments
<a name="r_TIMESTAMPTZ_CMP-arguments"></a>

 *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
<a name="r_TIMESTAMPTZ_CMP-return-type"></a>

INTEGER

## Examples
<a name="r_TIMESTAMPTZ_CMP-examples"></a>

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
```