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Sam Tunnicliffe commented on CASSANDRA-15204:
---------------------------------------------
Is this the right time to backport CASSANDRA-14913? (you mentioned on that
ticket that you planned to do it at some point).
Nit: naming of {{AlterTest::testDropFrozenAddMultiCellFrozenColumn}}
> Toughen up column drop/recreate validations in 3.0/3.11
> -------------------------------------------------------
>
> Key: CASSANDRA-15204
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15204
> Project: Cassandra
> Issue Type: Bug
> Components: Cluster/Schema
> Reporter: Aleksey Yeschenko
> Assignee: Aleksey Yeschenko
> Priority: Normal
> Fix For: 3.0.x, 3.11.x
>
>
> After CASSANDRA-8099 it’s no longer possible to safely drop/add columns with
> incompatible types. In 4.0 we validate this correctly, but in 3.0 we don’t,
> and that can result in unreadable sstables (corrupted serialization headers
> causing simple columns to be read as complex or vice versa).
> This patch brings 3.0 in line with 4.0 restrictions, making such corruption
> impossible.
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