add cast, most for code consistency and code "symmetry" (if we cast for val1p, we also cast for val2p)
add cast, most for code consistency and code "symmetry"
(if we cast for val1p, we also cast for val2p)

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