cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Carl Yeksigian (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12443) Remove alter type support
Date Mon, 28 Nov 2016 16:42:59 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15702437#comment-15702437
] 

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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message