Returns TRUE if the attribute at the specified path is of a particular
data type.
Syntax
attribute_type(attributename,type)
Arguments
attributename-
(Required) The attribute name to use.
type-
(Required) The attribute type to check for. For a list of valid values, see DynamoDB attribute_type.
Return type
bool
Examples
SELECT * FROM "Music" WHERE attribute_type("Artist", 'S')