Support a column list in compute stats that is retrieved via a subquery

Support a column list in compute stats that is retrived via a subquery - Specifically we want to use Impala query history tables where we collect the columns in a table that are using for joins, aggegrates, filters etc to be passed into compute stats command - 

Suggested Syntax - 

compute stats db.tbl (
select distinct join_columns from
from sys.impala_query_log
where contains(tables_queried, "db.tbl")
and query_dttm >current_timestamp()-7
and join_columns rlike 'db.tbl'
)