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https://issues.apache.org/jira/browse/CASSANDRA-12443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15702437#comment-15702437
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Carl Yeksigian commented on CASSANDRA-12443:
--------------------------------------------
After talking offline, [~blerer]'s intended comment was that we just leave the
3.0 CQL version the same, but include this fix. Since there are knock-on bugs
from leaving the alter support in place, it makes sense for this to go into a
bug-fix only version.
So, I've pushed up the 3.0 branch again, and rebased the 3.x and trunk branches:
||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-1]|[utest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-3.x-1-testall/]|[dtest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-3.x-1-dtest/]|
||trunk|[branch|https://github.com/carlyeks/cassandra/tree/ticket/12443/trunk-1]|[utest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-trunk-1-testall/]|[dtest|https://cassci.datastax.com/view/Dev/view/carlyeks/job/carlyeks-ticket-12443-trunk-1-dtest/]|
> 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.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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