AFAIK Tableau uses Drill ODBC driver, not JDBC (although Tableau hinted at
some JDBC support at some point: https://community.tableau.com/ideas/4633).
it's technically feasible BUT the Drill protocol is very low level so the
adapter would have to use the Drill RPC protocol and represent its own
Tableau supports Apache Drill JDBC driver, so you basically can use Drill
as a data provider for Tableau.
I'm asking if anyone implemented a Calcite adapter for some data engine and
tested if Tableau would be able to connect to it as if it was Apache Drill ?
It's like you connect to that adapter
