Hi, We are working on a calcite/avatica based "thin" JDBC driver very similar to what Phoenix has done with for its QueryServer, and I am looking for some feedback/options.
Avatica in its current state doesn't have an RPC call for "create connection". As a consequence, connection properties (i.e. the Properties instance passed through the DriverManager.getConnection(url, props)) are currently not RPC-ed from the client to the server. For Phoenix, this means properties such as TenantId, CurrentSCN etc do not work with the thin driver. I saw this question being asked in PHOENIX-1824, so I am not sure whether you were aware of this problem. I've tested it with the phoenix sandbox on master with a multi-tenant table to be sure. There currently is a discussion ongoing on the calcite dev mailing list on this topic as well (with subject "avatica jdbc URL connection properties"). Our understanding of the problem is that we need to extend the RPC with a "create connection", but this doesn't seem to be straightforward in the current Avatica design. It would be interesting to hear your thoughts on this subject. Thanks Jan
