Does Hashjoin and a few other operators supports vectorized execution

[hkulyc]

In the Velox paper section 4.3, it says "Velox provides a vectorized expression evaluation engine that can be used in a few situations: first, it is used by the FilterProject operator, to evaluate filter and projection expressions; second, it is used by TableScan and IO connectors to consistently evaluate predicate pushdown". What about other operators used in Velox, such as Aggregation, HashJoin, Exchange, etc? Do they support vectorized execution for now? Thanks.