Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the blog post that was published on June 30, 2025.

IS_DECIMAL function

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

IS_DECIMAL(super_expression)

Arguments

Return type

BOOLEAN

Examples

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       |
+------+------------+