The diagram you have included, is a depiction of the steps Catalyst (the
spark optimizer) takes to create an executable plan. Tungsten mainly comes
into play during code generation and the actual execution.
A datasource is represented by a LogicalRelation during analysis &
optimization. The spark
Which parts in the diagram above are executed by DataSource connectors and
which parts are executed by Tungsten? or to put it in another way which
phase in the diagram above does Tungsten leverages the Datasource
connectors (such as say cassandra connector ) ?
My understanding so far is that con
