reverting changeset 51692:b880b37a6626
reverting changeset 51692:b880b37a6626

building hash on just the candidates sofar needs the big hash table.
Better (performance wise) solution should follow soon

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb