Hi, I have been trying to load a medium sized csv file (22 million rows and 20 columns) into a parquet table using Drill's CTAS statement.
However, now matter what I try, the parquet writer in the query plan has only one associated minor fragment and thus runs in a single thread. I have tried a simple query with/without order by and with/without partition by clauses without much success. Is this a limitation of Drill that even in the presence of partition by clause ( and absence of any order by), the writes in CTAS are single threaded or I am missing something? Thanks and Regards, Ashu Pachauri
