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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-4964) Return column metadata for dynamic columns
Date Wed, 14 Nov 2012 15:12:12 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis resolved CASSANDRA-4964.
---------------------------------------

    Resolution: Invalid

Sorry, this reflects a fundamental misunderstanding of how cql3 maps to the storage engine.
 Please see http://www.datastax.com/dev/blog/cql3-for-cassandra-experts and http://www.datastax.com/dev/blog/thrift-to-cql3.
                
> Return column metadata for dynamic columns
> ------------------------------------------
>
>                 Key: CASSANDRA-4964
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4964
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 1.1.6
>            Reporter: Peter Lin
>
> Currently, org.apache.cassandra.thrift.CqlMetadata doesn't return the column name and
value metadata for dynamic columns. If I execute a query against a dynamic column that was
inserted through thrift or hector, the name and/or value type may not be the same as the default
types declared in the column family definition.
> If the dynamic column was inserted through CQL, it will conform to the defined default
types for column name and value. Even in that case, it is still nice to have the metadata
returned. That will facilitate developing tools for CQL and make it easier on people writing
drivers for Cassandra.
> I'm willing to contribute to this, if someone points me to the right place. I've read
a lot of the core cassandra code, but I haven't gone through all of CQL yet.

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