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https://issues.apache.org/jira/browse/CASSANDRA-12952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16104779#comment-16104779
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ASF GitHub Bot commented on CASSANDRA-12952:
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GitHub user adelapena opened a pull request:
https://github.com/apache/cassandra-dtest/pull/3
Add tests for MVs when a column in the base table is renamed with ALTER
TABLE (CASSANDRA-12952)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/adelapena/cassandra-dtest 12952
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cassandra-dtest/pull/3.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3
----
commit 1dcd47bbe93446b58b503ede063641395f9bebfb
Author: Andrés de la Peña <[email protected]>
Date: 2017-07-26T12:35:36Z
Add tests for MV when a column in the base table is renamed with ALTER TABLE
----
> AlterTableStatement propagates base table and affected MV changes
> inconsistently
> --------------------------------------------------------------------------------
>
> Key: CASSANDRA-12952
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12952
> Project: Cassandra
> Issue Type: Bug
> Components: Distributed Metadata, Materialized Views
> Reporter: Aleksey Yeschenko
> Assignee: Andrés de la Peña
> Fix For: 3.0.x, 3.11.x, 4.x
>
>
> In {{AlterTableStatement}}, when renaming columns or changing their types, we
> also keep track of all affected MVs - ones that also need column renames or
> type changes. Then in the end we announce the migration for the table change,
> and afterwards, separately, one for each affected MV.
> This creates a window in which view definitions and base table definition are
> not in sync with each other. If a node fails in between receiving those
> pushes, it's likely to have startup issues.
> The fix is trivial: table change and affected MV change should be pushed as a
> single schema mutation.
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