make sure that BATmark gets a read-only input and hence produces a view iso a copy
make sure that BATmark gets a read-only input
and hence produces a view iso a copy

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