anchor.diff:  
   on_comp_partitioned_clause
       : PARTITION partition_name?
  -        ((segment_attributes_clause | key_compression)+)?
  +        (segment_attributes_clause | key_compression)*
           UNUSABLE index_subpartition_clause?
       ;
   
  
positive.code:     ;
  
  supplemental_table_logging
      : ADD (SUPPLEMENTAL LOG  (supplemental_log_grp_clause | supplemental_id_key_clause) )?
         (',' SUPPLEMENTAL LOG  (supplemental_log_grp_clause | supplemental_id_key_clause) )*
      | DROP (SUPPLEMENTAL LOG (supplemental_id_key_clause | GROUP log_grp) )?
          (',' SUPPLEMENTAL LOG (supplemental_id_key_clause | GROUP log_grp) )*
      ;
  
  
negative.code:     ;
  
  relational_table
      : ('(' relational_property (',' relational_property)* ')')?
        (ON COMMIT (DELETE | PRESERVE) ROWS)?
        physical_properties? column_properties? table_partitioning_clauses?
        (CACHE | NOCACHE)? (RESULT_CACHE '(' MODE (DEFAULT | FORCE) ')')?
  