-537 THE PRIMARY KEY, FOREIGN KEY, UNIQUE, OR PARTITIONING KEY CLAUSE IDENTIFIES COLUMN column-name MORE THAN ONCE
Explanation
PRIMARY KEY, FOREIGN KEY, UNIQUE, or PARTITIONING KEY can each be followed by a list of column names. The statement violates the rule that no column name can appear more than once in any such list.
System action
The statement cannot be processed.
Programmer response
Correct the statement to specify unique names for each column.
SQLSTATE
42709