[jira] [Updated] (CASSANDRA-12705) Add column definition kind to system schema dropped columns

["Aleksey Yeschenko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-12705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aleksey Yeschenko updated CASSANDRA-12705:
------------------------------------------
    Reviewer: Aleksey Yeschenko

> Add column definition kind to system schema dropped columns
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-12705
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12705
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Distributed Metadata
>            Reporter: Stefania
>             Fix For: 4.0
>
>
> Both regular and static columns can currently be dropped by users, but this information is currently not stored in {{SchemaKeyspace.DroppedColumns}}. As a consequence, {{CFMetadata.getDroppedColumnDefinition}} returns a regular column and this has caused problems such as CASSANDRA-12582.
> We should add the column kind to {{SchemaKeyspace.DroppedColumns}} so that {{CFMetadata.getDroppedColumnDefinition}} can create the correct column definition. However, altering schema tables would cause inter-node communication failures during a rolling upgrade, see CASSANDRA-12236. Therefore we should wait for a full schema migration when upgrading to the next major version.



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