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From "Sylvain Lebresne (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-3782) Secondary indexes support for wide rows in CQL 3.0
Date Wed, 25 Jan 2012 18:02:49 GMT
Secondary indexes support for wide rows in CQL 3.0
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                 Key: CASSANDRA-3782
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3782
             Project: Cassandra
          Issue Type: Sub-task
            Reporter: Sylvain Lebresne
            Assignee: Sylvain Lebresne


Currently, CQL 3.0 doesn't allow creating an index on a dynamic CF (with COMPACT STORAGE).
The goal of this ticket is *not* to support the composite case however (CASSANDRA-3680 will
tackle this).

I think changes needed to support this are only in the CQL side and covert two area:
* Finding a syntax for it
* Currently, the CQL 3 code consider that a CF with any column_metadata defined is a non-compact
cf. Basically the problem is that we currently use column_metadata both for defining a name
for a column in the static case, and store indexing information. Ideally, we would separate
those informations, i.e. we could add a new map valueAliases (ByteBuffer -> AbstractType)
to CFMetadata (only used by static CF) and we would keep column_metadata for indexing purpose
only. However that may be problematic for backward compatibility (with thrift in particular),
so probably instead we can just add a new boolean isStaticColumnName to ColumnDefinition.

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