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From "Russ Hatch (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-8030) cqlsh error when selecting data from a table with nested UDTs
Date Wed, 01 Oct 2014 16:08:35 GMT


Russ Hatch commented on CASSANDRA-8030:

I think it probably falls under the domain of the python driver to be able to work without
blist installed in this scenario, I went ahead and created a ticket here for the issue:

> cqlsh error when selecting data from a table with nested UDTs
> -------------------------------------------------------------
>                 Key: CASSANDRA-8030
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Ubuntu 14.04. Cassandra 2.1.0. Single node.
>            Reporter: Cory Snyder
>              Labels: cqlsh
>         Attachments: example_statements.txt, schema.txt
> The schema that was being used when this error was produced is attached. Whenever I try
to select data from the LOAD_BALANCER_SERVICE table after having written data with non-empty
sets for either the pools or virtual_servers fields, cqlsh fails with the following exception:

> {code}
> Traceback (most recent call last):
>   File "/usr/bin/cqlsh", line 909, in perform_simple_statement
>     rows = self.session.execute(statement, trace=self.tracing_enabled)
>   File "/usr/share/cassandra/lib/",
line 1281, in execute
>     result = future.result(timeout)
>   File "/usr/share/cassandra/lib/",
line 2772, in result
>     raise self._final_exception
> TypeError: unhashable type: 'set'
> {code}
> I am, however, able to select the data from the table with the Java Datastax driver.
I am also able to select data from the table if both the pools and virtual_servers fields
are empty sets.

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