IS_SCALAR function

Checks whether a variable is a scalar. The IS_SCALAR function returns true for any value that is not an array or an object. The function returns false for any other values, including null.

The set of IS_ARRAY, IS_OBJECT, and IS_SCALAR cover all values except nulls.

Syntax

IS_SCALAR(super_expression)

Arguments

super_expression

A SUPER expression or column.

Return type

BOOLEAN

Example

To check if {"name": "Joe"} is a scalar using the IS_SCALAR function, use the following example.

CREATE TABLE t(s SUPER);

INSERT INTO t VALUES (JSON_PARSE('{"name": "Joe"}'));

SELECT s, IS_SCALAR(s.name) FROM t;

+----------------+-----------+
|       s        | is_scalar |
+----------------+-----------+
| {"name":"Joe"} | true      |
+----------------+-----------+