anchor.diff:  
   function_call
       : CALL? routine_name function_argument?
  +    ;
  +
  +procedure_call
  +    : routine_name function_argument?
       ;
   
   pipe_row_statement
  
positive.code: table_partition_description
      : deferred_segment_creation? segment_attributes_clause?
          (table_compression | key_compression)?
          (OVERFLOW segment_attributes_clause? )? 
          (lob_storage_clause | varray_col_properties | nested_table_col_properties)?
      ;
  
  
negative.code:     ;
  
  alter_cluster
      : ALTER CLUSTER  cluster_name
          ( physical_attributes_clause
          | SIZE size_clause
          | allocate_extent_clause
          | deallocate_unused_clause
          | cache_or_nocache
          )+
          parallel_clause?
          ';'
      ;
  
  