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https://issues.apache.org/jira/browse/CALCITE-5255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17601270#comment-17601270
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Francis Chuang commented on CALCITE-5255:
-----------------------------------------
[~gabor-hargitai-privitar], this is currently unassigned, so most probably not
in the near-future. However, if you have an implementation or are working on an
implementation, I encourage you to submit a pull request so that it can be
reviewed and potentially merged into avatica.
> gRPC transport for Avatica
> --------------------------
>
> Key: CALCITE-5255
> URL: https://issues.apache.org/jira/browse/CALCITE-5255
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Reporter: Julian Hyde
> Priority: Major
>
> CALCITE-840 added a protobuf transport for Avatica, as an alternative to the
> original JSON transport. In this change, we propose to add another transport
> that uses [gRPC|https://en.wikipedia.org/wiki/GRPC].
> We should be able to re-use the existing serialization of data and metadata
> to and from protobuf. Compared to the existing protobuf-over-HTTP transport,
> the gRPC transport will benefit from gRPC's authentication, flow control, and
> streaming.
> This task would add support on the Java server and client. Upgrading the Go
> client to use gRPC could be a separate task.
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