[jira] [Updated] (CASSANDRA-12952) AlterTableStatement propagates base table and affected MV changes inconsistently

["Jeremy Hanna (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-12952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeremy Hanna updated CASSANDRA-12952:
-------------------------------------
    Component/s: Materialized Views

> 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
>             Fix For: 3.0.x, 3.11.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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