SPLIT partition_extended_name
  { AT (literal [, literal]... )
    [ INTO ( range_partition_desc, range_partition_desc ) ]
  | VALUES (literal [, literal] ... )
    [ INTO (list_partition_desc, list_partition_desc ) ]
  } [ split_nested_table_part ]
    [ dependent_tables_clause ]
    [ update_index_clauses ]
    [ parallel_clause ]