CREATE CLUSTER [ schema. ]cluster
  (column datatype [ SORT ]
    [, column datatype [ SORT ] ]...
  )
  [ { physical_attributes_clause
    | SIZE size_clause
    | TABLESPACE tablespace
    | { INDEX
      | [ SINGLE TABLE ]
HASHKEYS integer [ HASH IS expr ]
      }
    }
      [ physical_attributes_clause
      | SIZE size_clause
      | TABLESPACE tablespace
      | { INDEX
        | [ SINGLE TABLE ]
HASHKEYS integer [ HASH IS expr ]
        }
      ]...
  ]
  [ parallel_clause ]
  [ NOROWDEPENDENCIES | ROWDEPENDENCIES ]
  [ CACHE | NOCACHE ] ;