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https://issues.apache.org/jira/browse/CASSANDRA-2710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-2710:
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Reviewer: xedin
Component/s: Core
API
Fix Version/s: 1.2
> Get multiple column ranges
> --------------------------
>
> Key: CASSANDRA-2710
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2710
> Project: Cassandra
> Issue Type: Sub-task
> Components: API, Core
> Reporter: David Boxenhorn
> Assignee: Vijay
> Labels: compositeColumns, cql
> Fix For: 1.2
>
> Attachments: 0001-2710-multiple-column-ranges-cql.patch,
> 0001-2710-multiple-column-ranges-thrift.patch
>
>
> I have replaced all my super column families with regular column families
> using composite columns. I have easily been able to support all previous
> functionality (I don't need range delete) except for one thing: getting
> multiple super columns with a single access. For this, I would need to get
> multiple ranges. (I can get multiple columns, or a single range, but not
> multiple ranges.)
> For example, I used to have
> [<superColumnName1>,<subColumnName1..N>],[<superColumnName2>,<subColumnName1..N>]
> and I could get superColumnName1, superColumnName2
> Now I have
> [<len><superColumnName1>0<len><subColumnName1>..<len><superColumnName1>0<len><subColumnNameN>],[<len><superColumnName2>0<len><subColumnName1>..<len><superColumnName2>0<len><subColumnNameN>]
> and I need to get superColumnName1..superColumnName1+,
> superColumnName2..superColumnName2+
> to get the same functionality
> I would like the clients to support this functionality, e.g. Hector to have
> .setRages parallel to .setColumnNames
> and for CQL to support a syntax like
> SELECT [FIRST N] [REVERSED] name1..nameN1, name2..nameN2... FROM ...
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