Streaming expressions are alias aware inside of the stream source only. If
you send a streaming expression to an alias it will likely end up on one of
the stream handlers within that alias, but will have no effect on what the
stream sources actually do, that's controlled by the collection parameter
When you send an expression to an alias named "myAlias" pointing to N
number of collections, each having M number of replicas, how does it
work? Is the same expression executed in all of the NxM machines at the
same time? Or a random node is selected from the NxM replica's nodes? Or
something e
