create table test75_group (
  gid        int           not null,
  value1     varchar(100)  not null
)
//
create unique index test75_group_pk on test75_group ( gid )
//

create table test75_person (
  pid        int           not null,
  value1     varchar(100)  not null,
  helloworld varchar(100)  null,
  sthelse    varchar(100)  null
)
//
create unique index test75_person_pk on test75_person ( pid )
//

create table test75_group_person (
  gid        int           not null,
  pid        int           not null 
)
//
create index test75_person_idx on test75_group_person ( pid )
//
create index test75_group_idx on test75_group_person ( gid )
//
