Mike Spertus created CASSANDRA-6420:
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Summary: CassandraStorage should not assume all DataBags are
DefaultDataBags
Key: CASSANDRA-6420
URL: https://issues.apache.org/jira/browse/CASSANDRA-6420
Project: Cassandra
Issue Type: Improvement
Components: Hadoop
Environment: All environments
Reporter: Mike Spertus
Fix For: 2.1, 2.0.2, 1.2.12
CassandraStorage improperly assumes all DataBags are DefaultDataBags. As a
result, natural Pig code can't be used with CassandraStorage. For example:
{quote}
{{B = FOREACH A GENERATE $0, TOBAG(TOTUPLE($1, $2));}}
{{STORE B into 'cassandra://MyKeySpace/MyColumnFamily' using
CassandraStorage();}}
{quote}
fails with a complaint that a {{NonSpillableDataBag}} can't be converted into a
{{DefaultDataBag}}.
Since the {{CassandraStorage}} code only calls methods from {{DataBag}}, there
is no need for this artifical restriction. After applying the attached patch,
the above code works fine, making CassandraStorage much easier to use.
This is my first submission to Cassandra, so I apologize for any incorrect
process. Please let me know what I should do differently. In particular, I am a
little unclear where I should put the test. I am thinking I should put it in
ThriftColumnFamilyTest.java. Is this correct or should it be somewhere else?
I'll create a test as soon as I understand.
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