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IS_INTEGER function - Amazon Redshift

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_INTEGER function

Returns true for numbers of scale 0 in the 32-bit range, and false for anything else (including null and floating point numbers).

The IS_INTEGER function is a superset of the IS_SMALLINT function.

Syntax

IS_INTEGER(super_expression)

Arguments

super_expression

A SUPER expression or column.

Return type

BOOLEAN

Examples

To check if 5 is an INTEGER using the IS_INTEGER function, use the following example.

CREATE TABLE t(s SUPER); INSERT INTO t VALUES (5); SELECT s, IS_INTEGER(s) FROM t; +---+------------+ | s | is_integer | +---+------------+ | 5 | true | +---+------------+