select * from xdummy;
--bei Postgres in HIS1 laufen alle Scripte in Transaktionen, daher muss man 
--für vacuum erst committen
commit;
vacuum costage_st_semester;
vacuum costage_st_studierendenstammdaten;
vacuum costage_st_studiengaenge;
vacuum costage_st_studien_aggr;
vacuum costage_st_pruef_aggr;
vacuum costage_bw_antr_aggr;
vacuum costage_lehrveranstaltungen;
vacuum costage_lv_teilnehmende;
vacuum costage_st_lv_aggr;
vacuum costage_st_einzpruef_aggr;