-20353 AN OPERATION INVOLVING COMPARISON CANNOT USE OPERAND name DEFINED AS DATA TYPE type-name
Explanation
The use of the value identified by name defined
as data type type-name is not permitted in an operation
that involves comparisons. This error can be returned for an expression
that results in a type-name data type in the following
contexts:
- A SELECT DISTINCT statement.
- A GROUP BY clause.
- An ORDER BY clause.
- An aggregate function with DISTINCT.
- A SELECT or VALUES statement of a set operator other than UNION ALL.
System action
The statement cannot be processed.
Programmer response
The requested operation on the data type type-name is not supported. You can change the data type of the value to a data type that is supported using a cast or some other function.
SQLSTATE
42818