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.

SIZE

Returns the binary in-memory size of a SUPER type constant or expression as an INTEGER.

Syntax

SIZE(super_expression)

Arguments

Return type

INTEGER

Examples

To use SIZE to get the in-memory size of several SUPER type expressions, use the following example.

CREATE TABLE test_super_size(a SUPER);
            
INSERT INTO test_super_size 
VALUES
  (null),
  (TRUE),
  (JSON_PARSE('[0,1,2,3]')),
  (JSON_PARSE('{"a":0,"b":1,"c":2,"d":3}'))
;

SELECT a, SIZE(a) 
FROM test_super_size 
ORDER BY 2, 1;

+---------------------------+------+
|             a             | size |
+---------------------------+------+
| true                      |    4 |
| NULL                      |    4 |
| [0,1,2,3]                 |   23 |
| {"a":0,"b":1,"c":2,"d":3} |   52 |
+---------------------------+------+