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From "T Jake Luciani (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-2474) CQL support for compound columns
Date Fri, 19 Aug 2011 13:18:27 GMT


T Jake Luciani commented on CASSANDRA-2474:

I think the best we can do with no major changes to HiveQL is:

  SELECT transposed(column) FROM foo WHERE key=X

This will return:
   rowkey, column, subcol, value

You could then also do supercol slices like transposed(column, start, end)

Looking at hive you can make functions return many columns:

> CQL support for compound columns
> --------------------------------
>                 Key: CASSANDRA-2474
>                 URL:
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: API, Core
>            Reporter: Eric Evans
>              Labels: cql
>             Fix For: 1.0
> 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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