Hi guys, I've been looking at the speed of some of our queries and have noticed there is quite a significant delay to the query actually starting.
For example, querying about 70 Parquet files in a directory, it takes about 370ms before it starts the first fragment. Obviously, considering it's not in the plan, it's very hard to see where exactly it's spending that 370ms without instrumenting/debugging. How can I troubleshoot where Drill is spending this 370ms?