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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2015/04/03 23:10:53 UTC

[jira] [Created] (CALCITE-663) Add protocol version to Avatica protocol

Julian Hyde created CALCITE-663:
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             Summary: Add protocol version to Avatica protocol
                 Key: CALCITE-663
                 URL: https://issues.apache.org/jira/browse/CALCITE-663
             Project: Calcite
          Issue Type: Bug
            Reporter: Julian Hyde
            Assignee: Julian Hyde


Add protocol version to Avatica protocol, to allow forwards and backwards compatibility.

The first request should be a CreateConnectionRequest, let's add the attributes there. I propose:
* CreateConnectionRequest.requestedProtocolType e.g. "json"
* CreateConnectionRequest.requestedProtocolVersion e.g. "1.2.0"
* CreateConnectionRequest.driverVersion
* CreateConnectionRequest.driverName e.g. "org.apache.calcite.avatica.remote.Driver"
* CreateConnectionResponse.protocolType
* CreateConnectionResponse.protocolVersion
* CreateConnectionResponse.databaseVersion

There is currently no CreateConnectionRequest.

Certain servers configurations would continue to allow connections to be implicitly created, but using an explicit CreateConnectionRequest would always be possible.



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