view view hash hashview ?arg?
Returns a hashed view, that can be used for faster access.
'arg is the number of leading properties used as key, it defaults to 1.
hashview is a view object like the one created by doing:
mk::view layout db.words_map {_H:I _R:I} mk::view open db.words_map hashview
It will be managed by MK, to contain hash information.