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\$1FLOAT function
<a name="r_is_float"></a>

Checks whether a value is a floating point number. The IS\$1FLOAT function returns `true` for floating point numbers (`FLOAT4` and `FLOAT8`). The function returns `false` for any other values.

The set of IS\$1DECIMAL the set of IS\$1FLOAT are disjoint.

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

```
IS_FLOAT(super_expression)
```

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

*super\$1expression*  
A `SUPER` expression or column.

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

`BOOLEAN`

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

To check if `2.22::FLOAT` is a `FLOAT` using the IS\$1FLOAT function, use the following example.

```
CREATE TABLE t(s SUPER);

INSERT INTO t VALUES(2.22::FLOAT);

SELECT s, IS_FLOAT(s) FROM t;

+---------+----------+
|    s    | is_float |
+---------+----------+
| 2.22e+0 | true     |
+---------+----------+
```