Problem Statement: Implementing Authorisation filter in lens.
The way we do Row level authorisation is -
For row level security, we have auth_db which stores map of significant
columns(In which we are interested to do row level security) and allowed
values per user. During run time we get all the Facts associated in query,
get their column set and do a intersection with set returned from auth_db.
Resulting set is appended as "IN Clause" or column!=value to the query
accordingly.
My guess is the best place to do it will be driver ReWriter level as it
will handle CubeQl and bypassed HQL seamlessly. I was wondering if there is
any better place to do this, i.e. any hooks available.
Regards
Vikas Singh
