text: create table movement (
    id bigserial not null,
    uid varchar(50) not null,
    creation_time timestamp not null,
    created_by_user bigint not null,
    name text not null,
    description text,
    version int default 0,
    primary key (id),
    unique (uid)
  );
  
  create table movement_organizers (
    movement_id bigint not null,
    user_id bigint not null,
    primary key (movement_id, user_id));
  