Simba Cassandra Tableau SparkSQL NullPointerException

Question

I am trying to analyze data stored in DSE 4.8.3 Cassandra using Tableau through SparkSQL.

Following is the description of column family I Created in Cassandra:

CREATE TABLE demokeyspace.temp (
    name text PRIMARY KEY,
    id int
)

The above table has only 1 row:

cqlsh> select * from demokeyspace.temp;

 name       | id
 ------------+----
 helloworld |  1

(1 rows)

One piece of info: I have replicated 'demokeyspace' keyspace on all the nodes of my cluster to make sure all the nodes can access it.

I have installed ODBC Administrator and Simba Spark ODBC Driver into the list of Drivers. I have enabled the thrift server on the node (spark5.xxx.xxx)

I am able to connect to the my Cassandra table from Tableau using SparkSQL.

My issue is when I drag the temp to the workspace and then click on 'Update Now' I am getting the following error:

When I click on the 'Show Query':

SELECT 1 AS `number_of_records`,
  `temp`.`id` AS `id`,
  `temp`.`name` AS `name`
FROM `demokeyspace`.`temp` `temp`
LIMIT 1000

Any idea why I am finding this error and/ or how I can fix this.