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\$1TIMESTAMP function
<a name="r_TIMESTAMPTZ_CMP_TIMESTAMP"></a>

TIMESTAMPTZ\$1CMP\$1TIMESTAMP compares the value of a timestamp with time zone expression with a timestamp expression. If the timestamp with time zone and timestamp values are identical, the function returns `0`. If the timestamp with time zone is greater chronologically, the function returns `1`. If the timestamp is greater, the function returns `–1`. 

## Syntax
<a name="r_TIMESTAMPTZ_CMP_TIMESTAMP-syntax"></a>

```
TIMESTAMPTZ_CMP_TIMESTAMP(timestamptz, timestamp)
```

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

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

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

## Return type
<a name="r_TIMESTAMPTZ_CMP_TIMESTAMP-return-type"></a>

INTEGER

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

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

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

timestamptz_cmp_timestamp  | timestamptz_cmp_timestamp | timestamptz_cmp_timestamp
---------------------------+---------------------------+---------------------------
              0            |            -1             |             1
```