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From "Tyler Hobbs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7859) Extend freezing to collections
Date Fri, 26 Sep 2014 16:54:35 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14149627#comment-14149627
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Tyler Hobbs commented on CASSANDRA-7859:
----------------------------------------

bq. Additionally (and that's alsmot a separate ticket but I figured we can start discussing
it here), we could decide that tuple is a frozen type by default. This means that we would
allow tuple<int, text> without needing to add frozen, but we would require frozen for
complex type inside tuple, so tuple<int, list<text>> would be rejected, but not
tuple<int, frozen<list<text>>>.

I think that's reasonable.  There are very few cases where non-frozen tuples would be useful,
let alone the best option, so I don't think we'll ever need them.  It's actually pretty simple
to make this change, so I can do that as part of this ticket.

> Extend freezing to collections
> ------------------------------
>
>                 Key: CASSANDRA-7859
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7859
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Sylvain Lebresne
>            Assignee: Tyler Hobbs
>             Fix For: 2.1.1
>
>
> This is the follow-up to CASSANDRA-7857, to extend {{frozen}} to collections. This will
allow things like {{map<text, frozen<map<int, int>>>}} for instance, as
well as allowing {{frozen}} collections in PK columns.
> Additionally (and that's alsmot a separate ticket but I figured we can start discussing
it here), we could decide that tuple is a frozen type by default. This means that we would
allow {{tuple<int, text>}} without needing to add {{frozen}}, but we would require {{frozen}}
for complex type inside tuple, so {{tuple<int, list<text>>}} would be rejected,
but not {{tuple<int, frozen<list<text>>>}}.



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