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https://issues.apache.org/jira/browse/CASSANDRA-4131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757919#comment-13757919
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Cyril Scetbon commented on CASSANDRA-4131:
------------------------------------------
I dig into the code and it comes from the fact that in class
org.apache.hadoop.hive.cassandra.input.cql.CqlHiveRecordReader, createKey()
function returns a MapWritable object whereas in class
org.apache.hadoop.hive.ql.exec.FetchOperator, function getRecordReader() tries
to get the key with the following code
{code}key = currRecReader.createKey();{code} But key is defined as a
WritableComparable and so can't store a MapWritable object returned by
CqlHiveRecordReader.createKey() function
Tell me if I'm wrong or if you have some patches to apply
> Integrate Hive support to be in core cassandra
> ----------------------------------------------
>
> Key: CASSANDRA-4131
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4131
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jeremy Hanna
> Assignee: Edward Capriolo
> Labels: hadoop, hive
>
> The standalone hive support (at https://github.com/riptano/hive) would be
> great to have in-tree so that people don't have to go out to github to
> download it and wonder if it's a left-for-dead external shim.
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