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https://issues.apache.org/jira/browse/CASSANDRA-12443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15600454#comment-15600454
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Carl Yeksigian commented on CASSANDRA-12443:
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I went back and forth on removing the parsing logic from 3.x, but thought that
since it wasn't a major version, it would be better to leave it in and provide
a better error message, and since we have the 4.0 branch, we won't have it
hanging around.
||3.0|[branch|https://github.com/carlyeks/cassandra/tree/ticket/12443/3.0]|[utest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-3.0-testall/]|[dtest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-3.0-dtest/]|
||3.x|[branch|https://github.com/carlyeks/cassandra/tree/ticket/12443/3.x]|[utest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-3.x-testall/]|[dtest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-3.x-dtest/]|
||trunk|[branch|https://github.com/carlyeks/cassandra/tree/ticket/12443/trunk]|[utest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-trunk-testall/]|[dtest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-trunk-dtest/]|
Also, it seems like we should bump the CQL version on this, but the next
version for 3.0 is 3.4.1, which is already defined in 3.x, and reusing it would
cause an inconsistent versioning. Thoughts, [~blerer]?
> Remove alter type support
> -------------------------
>
> Key: CASSANDRA-12443
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12443
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Carl Yeksigian
> Assignee: Carl Yeksigian
> Fix For: 3.0.x
>
>
> Currently, we allow altering of types. However, because we no longer store
> the length for all types anymore, switching from a fixed-width to
> variable-width type causes issues. commitlog playback breaking startup,
> queries currently in flight getting back bad results, and special casing
> required to handle the changes. In addition, this would solve
> CASSANDRA-10309, as there is no possibility of the types changing while an
> SSTableReader is open.
> For fixed-length, compatible types, the alter also doesn't add much over a
> cast, so users could use that in order to retrieve the altered type.
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