See com.twitter.scalding.parquet.thrift.DailySuffixParquetThrift for documentation on how to specify filter predicates for these sources.
User should define their own source like: class MySource(path: String, dateRange: DateRange, requestedFields: Fields) extends DailySuffixParquetTuple(path, dateRange, requestedFields) with Mappable2[Int, Int] with TypedSink2[Int,Int]
Typed Parquet tuple source/sink.
Typed parquet tuple