Merge and save parquet files in Drill

[Divya Gehlot]

Hi,
I have CTAS with partition on 4 columns and when I save it it creates lots
of small files ~ 102290 where size of each file is in KBs .

My queries are :
1.Does the lots of small files reduce the performance while reading the
data in Drill ?
2.If yes ,How can I merge the small parquet files ?



Thanks,
Divya