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From "Jonathan Ellis (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2474) CQL support for compound columns
Date Tue, 03 Jan 2012 22:18:40 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13179070#comment-13179070
] 

Jonathan Ellis commented on CASSANDRA-2474:
-------------------------------------------

bq. I would prefer CREATE COMPACT TABLE ... it's a property of the definition itself (that
cannot be changed) rather than of that specific 'body' field. It also make the rule for COMPACT
table rather simple: "a compact table should have only one field not part of the primary key";
you don't have to deal with errors like someone defining two VALUE() for instance.

Those are good points.  Personally I'd still rather have a "WITH COMPACT STORAGE" syntax *after*
CREATE TABLE ( ... ), since that's a more general way to tackle nonstandard options.

bq. I think we have 4 different cases

You nailed it, that's exactly what I want to solve here.

bq. Random other ideas

As you say, let's leave these as future work for now, this is a big enough discussion as it
is. :)
                
> CQL support for compound columns
> --------------------------------
>
>                 Key: CASSANDRA-2474
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2474
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Eric Evans
>            Assignee: Pavel Yaskevich
>              Labels: cql
>             Fix For: 1.1
>
>         Attachments: 2474-transposed-1.PNG, 2474-transposed-raw.PNG, 2474-transposed-select-no-sparse.PNG,
2474-transposed-select.PNG, raw_composite.txt, screenshot-1.jpg, screenshot-2.jpg
>
>
> For the most part, this boils down to supporting the specification of compound column
names (the CQL syntax is colon-delimted terms), and then teaching the decoders (drivers) to
create structures from the results.

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