This is pretty much well what is so remarkable about parquet files; not only do you get seekable data, you can fetch only the columns you want too. I believe t

This is pretty much well what is so remarkable about parquet files; not only do you get seekable data, you can fetch only the columns you want too. I believe that there are also indexing opportunities (not necessarily via eg hive partitioning) but frankly - am kinda out of my depth pn it.