Impala translator can handle reserved words in queries by quoting but doing select * the query fails in an unhelpful way. Example:
--succeeds
select calendar_type,
start_date,
calendar_year,
quarter_structure,
date_key,
'month',
week,
day_of_month
from warehouse.dim_advertiser_calendar;

fails due to reserved word "month" as a column in the virtual table:
select * from warehouse.dim_advertiser_calendar;