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_SMALLINT function

Checks whether a variable is a SMALLINT. The IS_SMALLINT function returns true for numbers of scale 0 in the 16-bit range. The function returns false for any other values, including null and floating point numbers.

Syntax

IS_SMALLINT(super_expression)

Arguments

Return

BOOLEAN

Examples

To check if 5 is a SMALLINT using the IS_SMALLINT function, use the following example.

CREATE TABLE t(s SUPER);

INSERT INTO t VALUES (5);

SELECT s, IS_SMALLINT(s) FROM t;

+---+-------------+
| s | is_smallint |
+---+-------------+
| 5 | true        |
+---+-------------+