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From "Jonathan Ellis (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-2474) CQL support for compound columns
Date Mon, 13 Jun 2011 15:25:51 GMT


Jonathan Ellis commented on CASSANDRA-2474:

Summary: general agreement that "SELECT parent:column" notation is a bad fit. Some alternatives
are presented. Most would require a Cassandra-aware Hive metastore to get the same syntax
for Hive and Cassandra; Hive is primarily concerned with "select *" but Cassandra needs an
effective way of representing "give me all the subcolumns for parent foo" (which is where
the current HQL syntax is inadequate).

> 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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