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https://issues.apache.org/jira/browse/CASSANDRA-14948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Yeschenko updated CASSANDRA-14948:
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Status: Review In Progress (was: Patch Available)
> Backport dropped column checks to 3.11
> --------------------------------------
>
> Key: CASSANDRA-14948
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14948
> Project: Cassandra
> Issue Type: Bug
> Reporter: Vincent White
> Assignee: Vincent White
> Priority: Low
> Fix For: 3.0.x, 3.11.x
>
>
> This is a follow on from CASSANDRA-14913 and CASSANDRA-14843 that introduced
> some fixes to prevent and mitigate data corruption caused by dropping a
> column then re-adding it with the same name but an incompatible type (e.g.
> simple int to a complex map<>) or different kind (regular/static).
> This patch backports the checks that now exist in trunk. This does include
> adding a column to the dropped_columns table to keep track of static columns
> like trunk, not sure it we are able to make that change in 3.11.x.
> Also not sure what our stance on backporting just the isValueCompatibleWith
> check to 3.0 is. I'd be for it since it prevents recreating a simple column
> as a map (or vice-versa) which will basically always lead to corruption.
> ||C* 3.11.x||
> |[Patch|https://github.com/vincewhite/cassandra/commit/3986b53b8acaf1d3691f9b35fd098a40667c520f]|
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