{ FUNCTIONS [schema .] function [, [schema .] function]...
| PACKAGES [schema .] package [, [schema .] package]...
| TYPES [schema .] type [, [schema .] type]...
| INDEXES [schema .] index [, [schema .] index]...
| INDEXTYPES [schema .] indextype [, [schema .] indextype]...
}
{ using_statistics_type 
| { default_cost_clause [, default_selectivity_clause]
  | default_selectivity_clause [, default_cost_clause]
  }
}