make sure we correctly set the unique flag on hash - indices with more than one column
make sure we correctly set the unique flag on hash - indices with more than
one column

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