Partitioned (100-file) Parquet dataset

Follow instructions in the datafusion directory.

1. DataFusion follows the SQL standard with case-sensitive identifiers, so all column names in queries.sql use double-quoted literals (e.g. EventTime -> "EventTime").

2. You must set the ('binary_as_string' 'true') due to an incorrect logical type annotation in the partitioned files. See Issue#7

1. Install/build datafusion-cli.

2. Download the parquet files:

seq 0 99 | xargs -P100 -I{} bash -c 'wget --directory-prefix partitioned --continue --progress=dot:giga https://datasets.clickhouse.com/hits_compatible/athena_partitioned/hits_{}.parquet'

3. Run the queries: datafusion-cli -f create.sql -f queries.sql or PATH="$(pwd)/arrow-datafusion/target/release:$PATH" ./run.sh.