[jira] [Updated] (CASSANDRA-7660) Indicate PK columns in "prepared" native protocol responses

["Tyler Hobbs (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-7660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tyler Hobbs updated CASSANDRA-7660:
-----------------------------------
    Attachment: 7660-trunk.txt

The attached patch (and [branch|https://github.com/thobbs/cassandra/tree/CASSANDRA-7660]) adds a new field to the metadata in Prepared responses.  The native protocol document has been updated in the patch, so I'll avoid describing it in detail here.

I also have a branch of the python driver that adds support for this feature: https://github.com/thobbs/python-driver/tree/CASSANDRA-7660-support.

> Indicate PK columns in "prepared" native protocol responses
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-7660
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7660
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: Tyler Hobbs
>            Assignee: Tyler Hobbs
>              Labels: protocolv4
>             Fix For: 3.0
>
>         Attachments: 7660-trunk.txt
>
>
> Currently, when native protocol drivers prepare statements, they need to check their internal representation of the schema to determine which, if any, of the columns are part of the partition key.  If the native protocol response indicated this, it would remove the drivers' dependency on having an internal representation of the schema when preparing statements.
> This would need to go in the v4 protocol.



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