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/). 

# IS\_DECIMAL function
<a name="r_is_decimal"></a>

Checks whether a value is a `DECIMAL`. The IS\_DECIMAL function returns `true` for numbers that are not floating points. The function returns `false` for any other values, including null. 

The IS\_DECIMAL function is a superset of IS\_BIGINT.

## Syntax
<a name="r_is_decimal-synopsis"></a>

```
IS_DECIMAL(super_expression)
```

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

*super\_expression*  
A `SUPER` expression or column.

## Return type
<a name="r_is_decimal-returns"></a>

`BOOLEAN`

## Examples
<a name="r_is_decimal_example"></a>

To check if `1.22` is a `DECIMAL` using the IS\_DECIMAL function, use the following example.

```
CREATE TABLE t(s SUPER);

INSERT INTO t VALUES (1.22);

SELECT s, IS_DECIMAL(s) FROM t;

+------+------------+
|  s   | is_decimal |
+------+------------+
| 1.22 | true       |
+------+------------+
```