schema university_staff {
  model sql_22 {
    table:<<female>>
    column:<<female,id,'int'>>
    primary_key:<<female_pk,female,<<female,id,int>>>>
    table:<<person>>
    column:<<person,id,'int'>>
    column:<<person,dname,'varchar'>>
    primary_key:<<person_pk,person,<<person,id,int>>>>
    table:<<male>>
    column:<<male,id,'int'>>
    primary_key:<<male_pk,male,<<male,id,int>>>>
    table:<<dept>>
    column:<<dept,dname,'varchar'>>
    primary_key:<<dept_pk,dept,<<dept,dname,varchar>>>>
    foreign_key:<<person_worksin_dept_fk,person,<<person,dname,varchar>>,dept,<<dept,dname,varchar>>>>
    foreign_key:<<female_isa_person_fk,female,<<female,id,int>>,person,<<person,id,int>>>>
    foreign_key:<<male_isa_person_fk,male,<<male,id,int>>,person,<<person,id,int>>>>
    column:<<person,name,'varchar'>>
  }
}
