[{ mapping_table_clauses
 | PCTTHRESHOLD integer
 | compression_clauses
 } 
 [ mapping_table_clauses
 | PCTTHRESHOLD integer
 | compression_clauses
 ]...
]
[index_organized_overflow_clause]

For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.