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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10723) Rewrite INITCOND after renames and alters of UDT fields
Date Wed, 18 Nov 2015 16:21:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15011302#comment-15011302
] 

Aleksey Yeschenko commented on CASSANDRA-10723:
-----------------------------------------------

bq. Because it could break the UDA/UDF which the current user is maybe not allowed to change
(break).

Not from perspective of this ticket, which is just about {{initcond}}. This breaks nothing
by itself, it's an opaque change.

> Rewrite INITCOND after renames and alters of UDT fields
> -------------------------------------------------------
>
>                 Key: CASSANDRA-10723
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10723
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Robert Stupp
>            Priority: Minor
>             Fix For: 3.x
>
>
> (Follow-up to CASSANDRA-10721)
> In order to re-write an INITCOND value when a UDT is changed (component renamed or type
altered), we will have to check for broken aggregates first (as we do not know why _exactly_
these are broken; CASSANDRA-10721 added {{Function.isBroken()}}).
> If one of the affected aggregates is broken, the request *must fail*.
> If none of the affected aggregates is broken, we can re-write the binary representation
of the INITCOND and push schema migrations for these aggregates.
> Still unclear, if the user needs permissions on both the UDT _and_ the affected UDAs
for that.
> Further, the UDT change and all UDA changes should be migrated in a single mutation,
which feels to be the biggest change. This is not a strict requirement but would keep that
schema change atomic.



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