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https://issues.apache.org/jira/browse/CASSANDRA-626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12799962#action_12799962
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Francois Orsini commented on CASSANDRA-626:
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Thanks. I guess I should have said SuperColumn row.
Using the Thrift API, I can populate the super ColumnFamily defined below:
<ColumnFamily ColumnType="Super"
CompareWith="LongType"
CompareSubcolumnsWith="UTF8Type"
Name="CF_NAME"/>
however and as Paul originally reported, I cannot populate if I have it defined
like this:
<ColumnFamily ColumnType="Super"
CompareWith="LongType"
CompareSubcolumnsWith="LongType"
Name="CF_NAME"/>
and get: TException: A long is exactly 8 bytes cassandra
So I have to go either with 'UTF8Type' or write my own custom comparator class
implementation?
> Polymorphic status of keys as byte[] and String is confusing
> ------------------------------------------------------------
>
> Key: CASSANDRA-626
> URL: https://issues.apache.org/jira/browse/CASSANDRA-626
> Project: Cassandra
> Issue Type: Improvement
> Components: Documentation & website
> Affects Versions: 0.5
> Reporter: Paul R. Brown
> Priority: Minor
>
> As part of some experiments with Cassandra, I wanted to build a column space
> with row keys that are Long (64-bit binary blocks) and column names that are
> Long, and this seems to be supported by the data configuration infrastructure:
> {code}<ColumnFamily ColumnType="Super"
> CompareWith="LongType"
> CompareSubcolumnsWith="LongType"
> Name="UserEvent"/>{code}
> But there is no obvious way to perform the insert over the Thrift interface
> via Java; I tried various ways of turning the Long bits into Strings for the
> API call, but the insert call returns:
> {code}Exception in thread "main" InvalidRequestException(why:A long is
> exactly 8 bytes){code}
> The status of keys as either byte[] or String and the mechanisms for
> inserting need to be clarified and surfaced in the API.
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