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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