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https://issues.apache.org/jira/browse/CASSANDRA-2474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-2474:
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Attachment: 0002-thrift-generated-code.patch
0001-Add-support-for-wide-and-composite-CFs.patch
Attaching initial patch. It's not complete but close I believe and presentable
enough that whoever wants to review can start looking at it.
First, the things that are not working/not ready:
* LIMIT: as said previously, I'll have to do CASSANDRA-3742 before.
* The '..' notation is broken. The syntax still supports it but it's ignored
right now. I'll probably add back the support (keeping the resultset has
previously for backward compatibility).
It would be worth running a number of existing CQL tests against this to see if
there is other broken backward compatibility problem but I haven't yet done it.
On the other side, the tests I previously attached (cql_test.py) are all
passing with this patch.
There is also a few simple improvements that could be done that I've not done
yet by lack of time:
* There is no query that translate to a query-by-name on 'compact' CF (dynamic
or composite dense ones). Allowing it would mean allowing IN relation for the
last part of multi-component PRIMARY KEY.
* As I was hinting in a previous comment, select, update and delete now have a
post-parsing validation/preprocessing phase that is not totally trivial. He
would be a little more efficient (and not hard) to make that preprocessing
parts of the prepared statements preparation.
> CQL support for compound columns and wide rows
> ----------------------------------------------
>
> 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: Sylvain Lebresne
> Priority: Critical
> Labels: cql
> Fix For: 1.1
>
> Attachments: 0001-Add-support-for-wide-and-composite-CFs.patch,
> 0002-thrift-generated-code.patch, 2474-transposed-1.PNG,
> 2474-transposed-raw.PNG, 2474-transposed-select-no-sparse.PNG,
> 2474-transposed-select.PNG, cql_tests.py, 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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