Hey Larry,
Drill transforms your CSV data into an internal memory-resident format for
processing, but does not change the structure of your original data.
If you want to convert your file to parquet, you can do this:
create table `foo.parquet` as select * from `foo.csv`
This will, however,
I would recommend select with specific column aliases assigned and casts
where appropriate.
create table parquet_users as select cast(columns[0] as int) as user_id,
columns[1] as username, cast(columns[2] as timestamp) as registration_date
from `users.csv1`;
On Thu, Jul 2, 2015 at 2:46 PM,
so the solution is to use select, but with columns specifically defined. is
that right?
On Thu, Jul 2, 2015 at 4:48 PM, Jason Altekruse altekruseja...@gmail.com
wrote:
Just one additional note here, I would strongly advise against converting
csv files using a select * query out of a csv.
The
