Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025. 
  If you would like to use Python UDFs, create the UDFs prior to that date. 
  Existing Python UDFs will continue to function as normal. For more information, see the
  
          blog post
        
IS_OBJECT function
Checks whether a variable is an object. The IS_OBJECT function returns true for
            objects, including empty objects. The function returns false for any other values,
            including null.
Syntax
IS_OBJECT(super_expression)
Arguments
- super_expression
 - 
                     
A
SUPERexpression or column. 
Return type
BOOLEAN
Examples
To check if {"name": "Joe"} is an object using the IS_OBJECT function, use the following example.
CREATE TABLE t(s super); INSERT INTO t VALUES (JSON_PARSE('{"name": "Joe"}')); SELECT s, IS_OBJECT(s) FROM t;+----------------+-----------+ | s | is_object | +----------------+-----------+ | {"name":"Joe"} | true | +----------------+-----------+