MODIFY PARTITION partition { partition_attributes | add_table_subpartition_clause | COALESCE [SUBPARTITION] [update_global_index_clause] [parallel_clause] | alter_table_mapping_clause | { ADD | DROP } VALUES ( partition_value [, partition_value]... ) | [REBUILD] UNUSABLE LOCAL INDEXES }
For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.