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From "Nate McCall (Issue Comment Edited) (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Edited] (CASSANDRA-3657) Allow extending CompositeType comparator
Date Tue, 24 Jan 2012 00:35:40 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13191677#comment-13191677
] 

Nate McCall edited comment on CASSANDRA-3657 at 1/24/12 12:34 AM:
------------------------------------------------------------------

Patch needs rebase - looks like AbstractType member "type" on DynamicCompositeType.DynamicParsedComparator
got generified in a recent commit. Two other changes appear to have been applied already.
                
      was (Author: zznate):
    Patch needs rebase - looks like AbstractType member "type" on DynamicCompositeType.DynamicParsedComparator
got generified in a recent commit. 
                  
> Allow extending CompositeType comparator
> ----------------------------------------
>
>                 Key: CASSANDRA-3657
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3657
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>    Affects Versions: 0.8.1
>            Reporter: Jonathan Ellis
>            Assignee: Sylvain Lebresne
>            Priority: Critical
>             Fix For: 1.1
>
>         Attachments: 0001-Allow-compatible-comparator-changes.patch
>
>
> Quoting Sylvain from CASSANDRA-2474,
> bq. if you declare a comparator like CompositeType(IntType, UUIDType, UTF8Type), you
can have columns that have only some prefix of the component (typically '42:92d21d0a-d6cb-437c-9d3f-b67aa733a19f'
is a valid column name for that comparator), and as a consequence it would be possible to
allow 'extend' the preceding comparator to say CompositeType(IntType, UUIDType, UTF8Type,
IntType)

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