SuperSet Hive Query issue - expected data in columnar format

I'm having a weird issue w/ running following Hive query via SuperSet (apache incubator):

SELECT 
   date,
   sum(1) visits,
   sum(price) revenue
FROM
   visits 
WHERE
   date BETWEEN '2017-07-21' AND '2017-07-25'
   AND country = 'US'
GROUP BY
   date,
   browser

Error I'm getting can be caught in the terminal from which I ran the superset (VM virtual box virtual machine running ubuntu):

Traceback (most recent call last):
  File "/home/userxx/venv/local/lib/python2.7/site-packages/superset/sql_lab.py", line 182, in execute_sql
    db_engine_spec.handle_cursor(cursor, query, session)
  File "/home/userxx/venv/local/lib/python2.7/site-packages/superset/db_engine_specs.py", line 726, in handle_cursor
    resp = cursor.fetch_logs()
  File "/home/userxx/venv/local/lib/python2.7/site-packages/superset/db_engines/hive.py", line 34, in fetch_logs
    response.results.rows, 'expected data in columnar format'
AssertionError

The fun part is that it's working OK when date period is 7/21 - 7/24. I figured it has to do w/ memory, but adding browsers into the story (as a group by option) didn't change the behavior (my logic was that adding it would break the query even for period 7/21 - 7/24 due to increased number of rows).

Needless to say, the query runs perfectly when started from e.g. SQL Developer Tool.

Thanks in advance!

Solution

My version was 0.18.x and the issue disappeared in 0.19